April 2019 - LKP - Ml01.01.Org

c86660ba89 ("drm/modes: Parse overscan properties"): BUG: unable to handle kernel NULL pointer dereference at 0000001c

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://github.com/0day-ci/linux/commits/Maxime-Ripard/drm-modes-Rewrite-... commit c86660ba893f328e1b26b4dcb4af0169ce52a9d4 Author: Maxime Ripard <maxime.ripard(a)bootlin.com> AuthorDate: Thu Apr 11 15:22:42 2019 +0200 Commit: 0day robot <lkp(a)intel.com> CommitDate: Fri Apr 12 12:28:39 2019 +0800 drm/modes: Parse overscan properties Properly configuring the overscan properties might be needed for the initial setup of the framebuffer for display that still have overscan. Let's allow for more properties on the kernel command line to setup each margin. Signed-off-by: Maxime Ripard <maxime.ripard(a)bootlin.com> 7b53ea1e7a drm/modes: Allow to specify rotation and reflection on the commandline c86660ba89 drm/modes: Parse overscan properties 6993bfc971 drm/selftests: Add command line parser selftests +-------------------------------------------------+------------+------------+------------+ | | 7b53ea1e7a | c86660ba89 | 6993bfc971 | +-------------------------------------------------+------------+------------+------------+ | boot_successes | 31 | 0 | 0 | | boot_failures | 2 | 11 | 11 | | BUG:kernel_reboot-without-warning_in_test_stage | 2 | | | | BUG:unable_to_handle_kernel | 0 | 11 | 11 | | Oops:#[##] | 0 | 11 | 11 | | EIP:drm_property_change_valid_get | 0 | 11 | 11 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 11 | 11 | +-------------------------------------------------+------------+------------+------------+ If you fix the issue, kindly add following tag Reported-by: kernel test robot <lkp(a)intel.com> [ 8.604127] [drm] Found bochs VGA, ID 0xb0c0. [ 8.604669] [drm] Framebuffer size 16384 kB @ 0xfd000000, mmio @ 0xfebf0000. [ 8.605615] [TTM] Zone kernel: Available graphics memory: 241782 kiB [ 8.606407] [TTM] Initializing pool allocator [ 8.607172] [drm] Initialized bochs-drm 1.0.0 20130925 for 0000:00:02.0 on minor 1 [ 8.610655] BUG: unable to handle kernel NULL pointer dereference at 0000001c [ 8.611403] #PF error: [normal kernel read fault] [ 8.611403] *pde = 00000000 [ 8.611403] Oops: 0000 [#1] PREEMPT [ 8.611403] CPU: 0 PID: 1 Comm: swapper Tainted: G T 5.1.0-rc4-00066-gc86660b #2 [ 8.611403] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 8.611403] EIP: drm_property_change_valid_get+0x14/0x220 [ 8.611403] Code: a1 ff ff ff eb d9 b8 fe ff ff ff eb d2 89 f6 8d bc 27 00 00 00 00 3e 8d 74 26 00 55 89 e5 83 ec 1c 89 5d f4 89 75 f8 89 7d fc <f6> 40 1c 04 75 76 8b 7d 08 89 d6 89 cb c7 07 00 00 00 00 8b 50 1c [ 8.611403] EAX: 00000000 EBX: dfbb6300 ECX: 00000000 EDX: 00000000 [ 8.611403] ESI: 00000000 EDI: dfbbe3ec EBP: dde83c78 ESP: dde83c5c [ 8.611403] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00210296 [ 8.611403] CR0: 80050033 CR2: 0000001c CR3: 13a80000 CR4: 000006d0 [ 8.611403] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 8.611403] DR6: fffe0ff0 DR7: 00000400 [ 8.611403] Call Trace: [ 8.611403] ? trace_hardirqs_on+0xf6/0x2f0 [ 8.611403] drm_atomic_set_property+0x2f/0xac0 [ 8.611403] ? drm_atomic_state_init+0xc7/0x110 [ 8.611403] ? drm_atomic_state_alloc+0x76/0x90 [ 8.611403] drm_setup_crtcs_fb+0x115/0x270 [ 8.611403] __drm_fb_helper_initial_config_and_unlock+0x279/0x4c0 [ 8.611403] drm_fbdev_client_hotplug+0x17a/0x240 [ 8.611403] drm_fbdev_generic_setup+0xf7/0x180 [ 8.611403] bochs_pci_probe+0x178/0x190 [ 8.611403] pci_device_probe+0x9a/0x130 [ 8.611403] ? sysfs_create_link+0x25/0x50 [ 8.611403] really_probe+0x12e/0x4e0 [ 8.611403] ? pm_runtime_barrier+0x113/0x150 [ 8.611403] driver_probe_device+0x77/0x1e0 [ 8.611403] ? mutex_lock+0x62/0x80 [ 8.611403] device_driver_attach+0x59/0x60 [ 8.611403] __driver_attach+0x55/0x1e0 [ 8.611403] ? device_driver_attach+0x60/0x60 [ 8.611403] bus_for_each_dev+0x67/0xa0 [ 8.611403] driver_attach+0x1e/0x20 [ 8.611403] ? device_driver_attach+0x60/0x60 [ 8.611403] bus_add_driver+0x18f/0x240 [ 8.611403] ? pci_dma_configure+0xa0/0xa0 [ 8.611403] driver_register+0x59/0x100 [ 8.611403] ? driver_register+0x8b/0x100 [ 8.611403] ? qxl_init+0x4a/0x4a [ 8.611403] __pci_register_driver+0x33/0x40 [ 8.611403] bochs_init+0x3e/0x40 [ 8.611403] do_one_initcall+0xb0/0x1f3 [ 8.611403] ? kernel_init_freeable+0x18b/0x293 [ 8.611403] kernel_init_freeable+0x216/0x293 [ 8.611403] ? rest_init+0xc0/0xc0 [ 8.611403] kernel_init+0x10/0x110 [ 8.611403] ? schedule_tail_wrapper+0x9/0x10 [ 8.611403] ret_from_fork+0x19/0x30 [ 8.611403] CR2: 000000000000001c [ 8.611403] ---[ end trace 23d403ec3d8d8ea8 ]--- [ 8.611403] EIP: drm_property_change_valid_get+0x14/0x220 # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 9d823dfee418a12ec9afc49934463d141ca6294d 15ade5d2e7775667cf191cf2f94327a4889f8b9d -- git bisect good 8422ba73643e9d6cfc5dbca8475a3d72c7fe6a78 # 17:59 G 10 0 10 10 Merge 'linux-review/Lorenzo-Bianconi/fix-possible-use-after-free-in-erspan_v-4-6/20190407-053639' into devel-hourly-2019041212 git bisect good a82b475127ceb1ce575aeaac161fdcf5b05d3ee2 # 18:33 G 11 0 11 11 Merge 'linux-review/Sean-Christopherson/KVM-x86-clear-HF_SMM_MASK-before-loading-state/20190403-053443' into devel-hourly-2019041212 git bisect good 3490b1a0b7659f4478c21e660890620cccba21e8 # 18:43 G 10 0 10 10 Merge 'linux-review/Dan-Carpenter/NFC-pn533-potential-buffer-overflow-in-pn533_target_found_type_a/20190331-075323' into devel-hourly-2019041212 git bisect good 72eb330ece216a6977931ccc59372bb5c06dabc2 # 19:01 G 11 0 11 11 Merge 'linux-review/Andrey-Ignatov/libbpf-Ignore-Wformat-nonliteral-warning/20190407-160747' into devel-hourly-2019041212 git bisect good 6868e41f438b910038e1e7f9c47273d6013fa851 # 19:17 G 11 0 11 11 Merge 'linux-review/Jon-Maxwell/tg3-allow-ethtool-p-to-work-for-NICs-in-down-state/20190402-145923' into devel-hourly-2019041212 git bisect good 55116b4227a09f3b01cea47714f2a64a50d26d6a # 19:45 G 11 0 11 11 Merge 'linux-review/Xin-Long/net-use-rcu_dereference_protected-to-fetch-sk_dst_cache-in-sk_destruct/20190401-033023' into devel-hourly-2019041212 git bisect good a50337ee4decf9d3af4b01e191173b2bd3334e8d # 20:00 G 11 0 11 11 Merge 'linux-review/Grygorii-Strashko/net-ethernet-ti-cpsw-drop-TI_DAVINCI_CPDMA-config-option/20190330-085620' into devel-hourly-2019041212 git bisect bad 476faf8306d36f5882b58594112fe4df2a104673 # 20:15 B 0 11 25 0 Merge 'linux-review/Maxime-Ripard/drm-modes-Rewrite-the-command-line-parser/20190412-122837' into devel-hourly-2019041212 git bisect good 331f53de8a781e35927146d26e616b919738dc25 # 20:35 G 11 0 11 11 Merge 'linux-review/Grygorii-Strashko/net-ethernet-ti-davinci_mdio-switch-to-readl-writel/20190330-081905' into devel-hourly-2019041212 git bisect good 7b53ea1e7adf1713a5de4cddf3df0c63188233ac # 20:58 G 11 0 0 0 drm/modes: Allow to specify rotation and reflection on the commandline git bisect bad 6993bfc971bbb32a70c38ec6e89a92c658f21f74 # 21:07 B 0 9 23 0 drm/selftests: Add command line parser selftests git bisect bad c86660ba893f328e1b26b4dcb4af0169ce52a9d4 # 21:13 B 0 5 19 0 drm/modes: Parse overscan properties # first bad commit: [c86660ba893f328e1b26b4dcb4af0169ce52a9d4] drm/modes: Parse overscan properties git bisect good 7b53ea1e7adf1713a5de4cddf3df0c63188233ac # 21:35 G 30 0 0 0 drm/modes: Allow to specify rotation and reflection on the commandline # extra tests with debug options git bisect bad c86660ba893f328e1b26b4dcb4af0169ce52a9d4 # 21:45 B 0 7 21 0 drm/modes: Parse overscan properties # extra tests on HEAD of linux-devel/devel-hourly-2019041212 git bisect bad 9d823dfee418a12ec9afc49934463d141ca6294d # 21:45 B 0 13 30 0 0day head guard for 'devel-hourly-2019041212' # extra tests on tree/branch linux-review/Maxime-Ripard/drm-modes-Rewrite-the-command-line-parser/20190412-122837 git bisect bad 6993bfc971bbb32a70c38ec6e89a92c658f21f74 # 21:50 B 0 11 25 0 drm/selftests: Add command line parser selftests # extra tests with first bad commit reverted git bisect good b88dd6c0afbb168e3de7e51e59b73e076634f36b # 22:06 G 11 0 0 0 Revert "drm/modes: Parse overscan properties" --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

3 years, 4 months

1
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[locking/rwsem] f03c360396: WARNING:at_init/main.c:#start_kernel

by kernel test robot

FYI, we noticed the following commit (built with gcc-7): commit: f03c36039664fc53ebf6d8322c46aaf8e373f70c ("locking/rwsem: Merge owner into count on x86-64") https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git WIP.locking/core in testcase: trinity with following parameters: runtime: 300s test-description: Trinity is a linux system call fuzz tester. test-url: http://codemonkey.org.uk/projects/trinity/ on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +----------------------------------------------------+------------+------------+ | | 1878939138 | f03c360396 | +----------------------------------------------------+------------+------------+ | boot_successes | 0 | 0 | | boot_failures | 4 | 9 | | BUG:kernel_hang_in_boot-around-mounting-root_stage | 3 | 5 | | BUG:kernel_reboot-without-warning_in_test_stage | 1 | | | WARNING:at_init/main.c:#start_kernel | 0 | 9 | | RIP:start_kernel | 0 | 9 | +----------------------------------------------------+------------+------------+ [ 4.777899] WARNING: CPU: 0 PID: 0 at init/main.c:663 start_kernel+0x366/0x512 [ 4.777906] Modules linked in: [ 4.777920] CPU: 0 PID: 0 Comm: swapper Not tainted 5.1.0-rc4-00083-gf03c360 #2 [ 4.777929] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 4.777943] RIP: 0010:start_kernel+0x366/0x512 [ 4.777957] Code: 01 00 e8 f2 85 00 00 e8 84 cd 01 00 e8 0e 48 02 00 e8 34 2b 8b fe 9c 58 0f ba e0 09 73 0e 48 c7 c7 e0 08 a0 99 e8 2c 91 bd fd <0f> 0b c6 05 4b c0 b9 ff 00 e8 64 d2 cb fd fb e8 c9 ca 02 00 e8 87 [ 4.777966] RSP: 0000:ffffffff9a207ed8 EFLAGS: 00010282 [ 4.777977] RAX: dffffc0000000008 RBX: ffff8881f699cb00 RCX: ffffffff9896f4d5 [ 4.777986] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff988f0c4b [ 4.777995] RBP: 1ffffffff3440fdb R08: fffffbfff35085ae R09: fffffbfff35085ae [ 4.778003] R10: 0000000000000001 R11: fffffbfff35085ad R12: ffffffff9ad812e0 [ 4.778011] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 4.778020] FS: 0000000000000000(0000) GS:ffffffff9a2a7000(0000) knlGS:0000000000000000 [ 4.778029] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.778037] CR2: 00000000ffffffff CR3: 00000001e884c000 CR4: 00000000000006b0 [ 4.778046] Call Trace: [ 4.778063] ? mem_encrypt_init+0x1/0x1 [ 4.778080] ? memcpy_orig+0x16/0x110 [ 4.778093] secondary_startup_64+0xb6/0xc0 [ 4.778116] random: get_random_bytes called from print_oops_end_marker+0x34/0x47 with crng_init=0 [ 4.778128] ---[ end trace 8182026d66b2a4ad ]--- To reproduce: # build kernel cd linux cp config-5.1.0-rc4-00083-gf03c360 .config make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 modules_prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 SHELL=/bin/bash make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 bzImage git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Rong Chen

3 years, 4 months

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0 / 0

853fbf8946 ("fs: Fix ovl_i_mutex_dir_key/p->lock/cred .."): BUG: unable to handle kernel NULL pointer dereference at 00000114

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://github.com/0day-ci/linux/commits/Mina-Almasry/fs-Fix-ovl_i_mutex_... commit 853fbf894629ed7df6b3d494bdf0dca547325188 Author: Mina Almasry <almasrymina(a)google.com> AuthorDate: Thu Apr 11 09:47:53 2019 -0700 Commit: 0day robot <lkp(a)intel.com> CommitDate: Fri Apr 12 08:05:21 2019 +0800 fs: Fix ovl_i_mutex_dir_key/p->lock/cred cred_guard_mutex deadlock These 3 locks are acquired simultaneously in different order causing deadlock: https://syzkaller.appspot.com/bug?id=00f119b8bb35a3acbcfafb9d36a2752b364e... ====================================================== WARNING: possible circular locking dependency detected 4.19.0-rc5+ #253 Not tainted ------------------------------------------------------ syz-executor1/545 is trying to acquire lock: 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: inode_lock_shared include/linux/fs.h:748 [inline] 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: do_last fs/namei.c:3323 [inline] 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: path_openat+0x250d/0x5160 fs/namei.c:3534 but task is already holding lock: 0000000044500cca (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds+0x53/0x120 fs/exec.c:1404 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&sig->cred_guard_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x166/0x1700 kernel/locking/mutex.c:1072 mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102 lock_trace+0x4c/0xe0 fs/proc/base.c:384 proc_pid_stack+0x196/0x3b0 fs/proc/base.c:420 proc_single_show+0x101/0x190 fs/proc/base.c:723 seq_read+0x4af/0x1150 fs/seq_file.c:229 do_loop_readv_writev fs/read_write.c:700 [inline] do_iter_read+0x4a3/0x650 fs/read_write.c:924 vfs_readv+0x175/0x1c0 fs/read_write.c:986 do_preadv+0x1cc/0x280 fs/read_write.c:1070 __do_sys_preadv fs/read_write.c:1120 [inline] __se_sys_preadv fs/read_write.c:1115 [inline] __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1115 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&p->lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x166/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 seq_read+0x71/0x1150 fs/seq_file.c:161 do_loop_readv_writev fs/read_write.c:700 [inline] do_iter_read+0x4a3/0x650 fs/read_write.c:924 vfs_readv+0x175/0x1c0 fs/read_write.c:986 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x53c/0xb20 fs/splice.c:417 do_splice_to+0x12e/0x190 fs/splice.c:881 splice_direct_to_actor+0x270/0x8f0 fs/splice.c:953 do_splice_direct+0x2d4/0x420 fs/splice.c:1062 do_sendfile+0x62a/0xe20 fs/read_write.c:1440 __do_sys_sendfile64 fs/read_write.c:1495 [inline] __se_sys_sendfile64 fs/read_write.c:1487 [inline] __x64_sys_sendfile64+0x15d/0x250 fs/read_write.c:1487 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (sb_writers#5){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x214/0x370 fs/super.c:1387 sb_start_write include/linux/fs.h:1566 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:360 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 ovl_create_object+0x142/0x3a0 fs/overlayfs/dir.c:596 ovl_create+0x2b/0x30 fs/overlayfs/dir.c:627 lookup_open+0x1319/0x1b90 fs/namei.c:3234 do_last fs/namei.c:3324 [inline] path_openat+0x15e7/0x5160 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_sys_open+0x568/0x700 fs/open.c:1063 ksys_open include/linux/syscalls.h:1276 [inline] __do_sys_creat fs/open.c:1121 [inline] __se_sys_creat fs/open.c:1119 [inline] __x64_sys_creat+0x61/0x80 fs/open.c:1119 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_dir_key[depth]){++++}: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900 down_read+0xb0/0x1d0 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:748 [inline] do_last fs/namei.c:3323 [inline] path_openat+0x250d/0x5160 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_open_execat+0x221/0x8e0 fs/exec.c:853 __do_execve_file.isra.33+0x173f/0x2540 fs/exec.c:1755 do_execveat_common fs/exec.c:1866 [inline] do_execve fs/exec.c:1883 [inline] __do_sys_execve fs/exec.c:1964 [inline] __se_sys_execve fs/exec.c:1959 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1959 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: &ovl_i_mutex_dir_key[depth] --> &p->lock --> &sig->cred_guard_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sig->cred_guard_mutex); lock(&p->lock); lock(&sig->cred_guard_mutex); lock(&ovl_i_mutex_dir_key[depth]); *** DEADLOCK *** Solution: I establish this locking order for these locks: 1. ovl_i_mutex_dir_key 2. p->lock 3. sig->cred_guard_mutex In this change i fix the locking order of exec.c, which is the only instance that voilates this order. Signed-off-by: Mina Almasry <almasrymina(a)google.com> 582549e3fb Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma 853fbf8946 fs: Fix ovl_i_mutex_dir_key/p->lock/cred cred_guard_mutex deadlock +-------------------------------------------------+------------+------------+ | | 582549e3fb | 853fbf8946 | +-------------------------------------------------+------------+------------+ | boot_successes | 35 | 0 | | boot_failures | 4 | 11 | | BUG:kernel_reboot-without-warning_in_test_stage | 4 | | | BUG:unable_to_handle_kernel | 0 | 11 | | Oops:#[##] | 0 | 11 | | EIP:free_bprm | 0 | 11 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 11 | +-------------------------------------------------+------------+------------+ If you fix the issue, kindly add following tag Reported-by: kernel test robot <lkp(a)intel.com> [ 11.779780] Initialise system trusted keyrings [ 11.802037] Key type blacklist registered [ 11.823781] workingset: timestamp_bits=14 max_order=17 bucket_order=3 [ 12.213259] ntfs: driver 2.1.32 [Flags: R/W]. [ 12.255175] JFS: nTxBlock = 3910, nTxLock = 31283 [ 12.299632] BUG: unable to handle kernel NULL pointer dereference at 00000114 [ 12.302441] #PF error: [normal kernel read fault] [ 12.302441] *pde = 00000000 [ 12.302441] Oops: 0000 [#1] [ 12.302441] CPU: 0 PID: 29 Comm: kworker/u2:0 Not tainted 5.1.0-rc4-00059-g853fbf8 #1 [ 12.302441] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 12.302441] EIP: free_bprm+0x6/0x6a [ 12.302441] Code: 75 02 eb 0a 8b 3f 81 ff e4 dd 93 c1 75 85 b8 c0 dd 93 c1 e8 55 a7 43 00 eb 00 8d 65 f4 89 f0 5b 5e 5f 5d c3 55 89 e5 53 89 c3 <83> b8 20 01 00 00 00 74 20 a1 54 7c 7e c1 8b 80 18 04 00 00 05 b8 [ 12.302441] EAX: fffffff4 EBX: fffffff4 ECX: dd42e640 EDX: dd431ecc [ 12.302441] ESI: dd96e120 EDI: fffffff4 EBP: dd431f44 ESP: dd431f40 [ 12.302441] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00210202 [ 12.302441] CR0: 80050033 CR2: 00000114 CR3: 01a19000 CR4: 000006d0 [ 12.302441] Call Trace: [ 12.302441] __do_execve_file+0x5f9/0x651 [ 12.302441] ? kmem_cache_alloc+0x9f/0x106 [ 12.302441] do_execve+0x16/0x18 [ 12.302441] call_usermodehelper_exec_async+0x108/0x12c [ 12.302441] ? umh_complete+0x1c/0x1c [ 12.302441] ret_from_fork+0x2e/0x38 [ 12.302441] Modules linked in: [ 12.302441] CR2: 0000000000000114 [ 12.302441] ---[ end trace 311785ead50a43d0 ]--- [ 12.302441] EIP: free_bprm+0x6/0x6a # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 9052aea5db91b50caf30f7697af22f7bc37e8573 15ade5d2e7775667cf191cf2f94327a4889f8b9d -- git bisect bad c18c1b00c878798532237abe16623a5f48b8cc08 # 11:14 B 0 11 26 0 Merge 'ext4/unicode' into devel-hourly-2019041208 git bisect bad 842090795402a3f48219bd161e04f983d384c957 # 11:39 B 0 11 26 0 Merge 'linux-review/Nicolas-Dichtel/xfrm-update-doc-about-xfrm-46-_gc_thresh/20190410-075445' into devel-hourly-2019041208 git bisect bad 5940a630034d0a37900039dbbe9cc0dc79276d0f # 11:45 B 0 10 36 11 Merge 'ipmi/for-next' into devel-hourly-2019041208 git bisect bad 5c53268527db7ccca97d35edb703c04b16e35ce6 # 11:55 B 0 11 37 11 Merge 'pinctrl-intel/review-andy' into devel-hourly-2019041208 git bisect good 512ac675753e33e639d89fc1d87915b695719664 # 12:14 G 11 0 0 0 Merge 'tegra/for-5.2/memory' into devel-hourly-2019041208 git bisect bad a569f122acb67388f4d29d73280e2b7bac1f05bf # 12:28 B 0 11 36 10 Merge 'pci/for-linus' into devel-hourly-2019041208 git bisect good 9317887598c3abcef953f087453762928078901e # 12:41 G 10 0 0 1 Merge 'vireshk-pm/cpufreq/arm/linux-next' into devel-hourly-2019041208 git bisect bad 736351a76bb458999b811380697e8af6544abbd3 # 12:57 B 0 3 22 4 Merge 'linux-review/Mina-Almasry/fs-Fix-ovl_i_mutex_dir_key-p-lock-cred-cred_guard_mutex-deadlock/20190412-080519' into devel-hourly-2019041208 git bisect good 4359b1faec1cc6d8e3407016fdc0ff6806d81b78 # 13:33 G 11 0 0 0 Merge 'linux-review/Alexandru-Ardelean/net-xilinx-emaclite-add-minimal-ethtool-ops/20190408-202115' into devel-hourly-2019041208 git bisect good 869e3305f23dfeacdaa234717c92ccb237815d90 # 13:36 G 10 0 0 0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net git bisect good ed79cc87302bf7fbc87f05d655b998f866b4fed8 # 13:46 G 10 0 0 0 Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost git bisect good ea7a5c706fa49273cf6d1d9def053ecb50db2076 # 13:56 G 11 0 0 3 RDMA/vmw_pvrdma: Fix memory leak on pvrdma_pci_remove git bisect good d737b25b1ae0540ba13cbd45ebb9b58a1d6d7f0d # 14:23 G 10 0 0 0 IB/hfi1: Do not flush send queue in the TID RDMA second leg git bisect bad 853fbf894629ed7df6b3d494bdf0dca547325188 # 14:35 B 0 11 26 0 fs: Fix ovl_i_mutex_dir_key/p->lock/cred cred_guard_mutex deadlock git bisect good 582549e3fbe137eb6ce9be591aca25c2222a36b4 # 14:38 G 10 0 0 4 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma # first bad commit: [853fbf894629ed7df6b3d494bdf0dca547325188] fs: Fix ovl_i_mutex_dir_key/p->lock/cred cred_guard_mutex deadlock git bisect good 582549e3fbe137eb6ce9be591aca25c2222a36b4 # 14:42 G 31 0 0 4 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma # extra tests with debug options git bisect bad 853fbf894629ed7df6b3d494bdf0dca547325188 # 14:47 B 0 11 26 0 fs: Fix ovl_i_mutex_dir_key/p->lock/cred cred_guard_mutex deadlock # extra tests on HEAD of linux-devel/devel-hourly-2019041208 git bisect bad 9052aea5db91b50caf30f7697af22f7bc37e8573 # 14:47 B 0 13 31 0 0day head guard for 'devel-hourly-2019041208' # extra tests on tree/branch linux-review/Mina-Almasry/fs-Fix-ovl_i_mutex_dir_key-p-lock-cred-cred_guard_mutex-deadlock/20190412-080519 git bisect bad 853fbf894629ed7df6b3d494bdf0dca547325188 # 14:48 B 0 11 26 0 fs: Fix ovl_i_mutex_dir_key/p->lock/cred cred_guard_mutex deadlock # extra tests with first bad commit reverted git bisect good 13f65552b2b05816859deb13ec2584f4bf49ab3e # 14:59 G 10 0 0 0 Revert "fs: Fix ovl_i_mutex_dir_key/p->lock/cred cred_guard_mutex deadlock" --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

3 years, 4 months

1
0
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4f4fd7c579: mdadm-selftests.10ddf-fail-two-spares.fail

by kernel test robot

FYI, we noticed the following commit (built with gcc-7): commit: 4f4fd7c5798bbdd5a03a60f6269cf1177fbd11ef ("Don't jump to compute_result state from check_result state") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master in testcase: mdadm-selftests with following parameters: disk: 1HDD test_prefix: 10 on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 4G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +-------------------------------------------------+------------+------------+ | | 81ba6abd2b | 4f4fd7c579 | +-------------------------------------------------+------------+------------+ | boot_successes | 1 | 0 | | boot_failures | 3 | 4 | | BUG:kernel_reboot-without-warning_in_test_stage | 3 | 4 | | mdadm-selftests.10ddf-fail-two-spares.fail | 0 | 4 | +-------------------------------------------------+------------+------------+ [ 165.841336 ] Testing on linux-5.1.0-rc3-00023-g4f4fd7c kernel [ 165.841339 ] [ 167.302289 ] md/raid:md126: not clean -- starting background reconstruction [ 167.304321 ] md/raid:md126: device loop13 operational as raid disk 3 [ 167.306055 ] md/raid:md126: device loop12 operational as raid disk 2 [ 167.308044 ] md/raid:md126: device loop11 operational as raid disk 1 [ 167.309522 ] md/raid:md126: device loop10 operational as raid disk 0 [ 167.320733 ] md/raid:md126: raid level 6 active with 4 out of 4 devices, algorithm 10 [ 167.327158 ] md126: detected capacity change from 0 to 33554432 [ 167.409736 ] md: resync of RAID array md126 [ 167.561148 ] md/raid10:md125: not clean -- starting background reconstruction [ 167.563142 ] md/raid10:md125: active with 4 out of 4 devices [ 167.568822 ] md125: detected capacity change from 0 to 33554432 [ 167.588867 ] md: delaying resync of md125 until md126 has finished (they share one or more physical units) [ 168.171556 ] md: md126: resync done. [ 168.202995 ] md: resync of RAID array md125 [ 168.438884 ] md: md125: resync done. [ 168.998162 ] md/raid10:md125: Disk failure on loop11, disabling device. [ 168.998162 ] md/raid10:md125: Operation continuing on 3 devices. [ 169.044560 ] md/raid:md126: Disk failure on loop11, disabling device. [ 169.044560 ] md/raid:md126: Operation continuing on 3 devices. [ 169.104982 ] md: recovery of RAID array md125 [ 169.129051 ] md: delaying recovery of md126 until md125 has finished (they share one or more physical units) [ 170.016071 ] md/raid10:md125: Disk failure on loop12, disabling device. [ 170.016071 ] md/raid10:md125: Operation continuing on 2 devices. [ 170.031796 ] md/raid:md126: Disk failure on loop12, disabling device. [ 170.031796 ] md/raid:md126: Operation continuing on 2 devices. [ 170.123425 ] md: md125: recovery interrupted. [ 170.127705 ] md: recovery of RAID array md126 [ 170.132003 ] md: delaying recovery of md125 until md126 has finished (they share one or more physical units) [ 177.280292 ] md: md126: recovery done. [ 177.286369 ] md: recovery of RAID array md125 [ 177.304563 ] md: delaying recovery of md126 until md125 has finished (they share one or more physical units) [ 183.347549 ] md: md125: recovery done. [ 183.350452 ] md: recovery of RAID array md126 [ 183.368340 ] md: delaying recovery of md125 until md126 has finished (they share one or more physical units) [ 190.512654 ] md: md126: recovery done. [ 190.519633 ] md: recovery of RAID array md125 [ 197.641803 ] md: md125: recovery done. [ 198.039343 ] tests/10ddf-fail-two-spares... FAILED - see /var/tmp/log for details To reproduce: # build kernel cd linux cp config-5.1.0-rc3-00023-g4f4fd7c .config make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 modules_prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 SHELL=/bin/bash make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 bzImage git clone https://github.com/intel/lkp-tests.git cd lkp-tests find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email Thanks, Rong Chen

3 years, 4 months

2
1
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[crypto] 71052dcf4b: will-it-scale.per_thread_ops 59.5% improvement

by kernel test robot

Greeting, FYI, we noticed a 59.5% improvement of will-it-scale.per_thread_ops due to commit: commit: 71052dcf4be70be4077817297dcde7b155e745f2 ("crypto: scompress - Use per-CPU struct instead multiple variables") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master in testcase: will-it-scale on test machine: 288 threads Intel(R) Xeon Phi(TM) CPU 7295 @ 1.50GHz with 80G memory with following parameters: nr_task: 100% mode: thread test: signal1 cpufreq_governor: performance test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two. test-url: https://github.com/antonblanchard/will-it-scale In addition to that, the commit also has significant impact on the following tests: +------------------+----------------------------------------------------------------------+ | testcase: change | will-it-scale: will-it-scale.per_process_ops 26.3% improvement | | test machine | 288 threads Intel(R) Xeon Phi(TM) CPU 7295 @ 1.50GHz with 80G memory | | test parameters | cpufreq_governor=performance | | | mode=process | | | nr_task=100% | | | test=malloc1 | +------------------+----------------------------------------------------------------------+ Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase: gcc-7/performance/x86_64-rhel-7.6/thread/100%/debian-x86_64-2018-04-03.cgz/lkp-knm01/signal1/will-it-scale commit: 6a4d1b18ef ("crypto: scompress - return proper error code for allocation failure") 71052dcf4b ("crypto: scompress - Use per-CPU struct instead multiple variables") 6a4d1b18ef00a7b1 71052dcf4be70be4077817297dc ---------------- --------------------------- fail:runs %reproduction fail:runs | | | 3:4 -75% :4 dmesg.WARNING:at#for_ip_interrupt_entry/0x %stddev %change %stddev \ | \ 211.75 +59.5% 337.75 will-it-scale.per_thread_ops 144571 +2.2% 147795 will-it-scale.time.involuntary_context_switches 96.36 ± 11% +37.6% 132.63 ± 14% will-it-scale.time.user_time 61168 +59.2% 97391 will-it-scale.workload 0.20 ± 11% +0.1 0.26 ± 11% mpstat.cpu.all.usr% 16.48 -0.1 16.43 perf-profile.calltrace.cycles-pp.get_signal.do_signal.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe 2312274 ± 90% -74.0% 601465 ±109% cpuidle.C1.usage 15767 ± 95% -75.8% 3822 ± 53% cpuidle.POLL.time 2280094 ± 91% -74.7% 576421 ±114% turbostat.C1 2.11 -23.3% 1.62 turbostat.RAMWatt 58.02 ± 3% -19.7% 46.57 ± 7% sched_debug.cfs_rq:/.util_est_enqueued.stddev 730.45 ± 8% +35.7% 991.09 ± 4% sched_debug.cpu.clock.stddev 730.45 ± 8% +35.7% 991.09 ± 4% sched_debug.cpu.clock_task.stddev 0.00 ± 8% +35.4% 0.00 ± 4% sched_debug.cpu.next_balance.stddev 94577 +1.2% 95672 proc-vmstat.nr_active_anon 5629 -1.5% 5542 proc-vmstat.nr_inactive_anon 35563 +3.0% 36627 proc-vmstat.nr_shmem 94577 +1.2% 95672 proc-vmstat.nr_zone_active_anon 5629 -1.5% 5542 proc-vmstat.nr_zone_inactive_anon 41301847 ± 2% +16.3% 48050918 ± 2% perf-stat.i.branch-misses 21.16 -0.6 20.54 ± 2% perf-stat.i.cache-miss-rate% 34021212 +11.2% 37847523 perf-stat.i.cache-misses 1.607e+08 +15.3% 1.852e+08 perf-stat.i.cache-references 13007 ± 2% -8.4% 11917 perf-stat.i.cycles-between-cache-misses 29379452 ± 2% +19.7% 35181605 ± 5% perf-stat.i.iTLB-load-misses 1258 ± 2% -17.5% 1038 ± 4% perf-stat.i.instructions-per-iTLB-miss 4.43 +15.4% 5.11 ± 2% perf-stat.overall.MPKI 0.46 ± 2% +0.1 0.54 perf-stat.overall.branch-miss-rate% 13156 -9.3% 11934 perf-stat.overall.cycles-between-cache-misses 0.08 ± 2% +0.0 0.10 ± 5% perf-stat.overall.iTLB-load-miss-rate% 1256 ± 2% -17.4% 1037 ± 5% perf-stat.overall.instructions-per-iTLB-miss 0.08 -0.7% 0.08 perf-stat.overall.ipc 1.765e+08 -37.3% 1.107e+08 perf-stat.overall.path-length 40843912 ± 2% +16.6% 47633548 ± 2% perf-stat.ps.branch-misses 33816266 +10.8% 37471929 perf-stat.ps.cache-misses 1.596e+08 +15.2% 1.839e+08 perf-stat.ps.cache-references 28713208 +21.2% 34807093 ± 5% perf-stat.ps.iTLB-load-misses 1471021 +5.2% 1547236 interrupts.CAL:Function_call_interrupts 7736 -37.5% 4833 ± 34% interrupts.CPU101.NMI:Non-maskable_interrupts 7736 -37.5% 4833 ± 34% interrupts.CPU101.PMI:Performance_monitoring_interrupts 3843 +76.7% 6791 ± 24% interrupts.CPU11.NMI:Non-maskable_interrupts 3843 +76.7% 6791 ± 24% interrupts.CPU11.PMI:Performance_monitoring_interrupts 4836 ± 34% +40.7% 6804 ± 24% interrupts.CPU121.NMI:Non-maskable_interrupts 4836 ± 34% +40.7% 6804 ± 24% interrupts.CPU121.PMI:Performance_monitoring_interrupts 10.25 ± 65% +1302.4% 143.75 ±121% interrupts.CPU13.RES:Rescheduling_interrupts 4846 ± 34% +59.3% 7718 interrupts.CPU159.NMI:Non-maskable_interrupts 4846 ± 34% +59.3% 7718 interrupts.CPU159.PMI:Performance_monitoring_interrupts 3826 +77.2% 6780 ± 25% interrupts.CPU164.NMI:Non-maskable_interrupts 3826 +77.2% 6780 ± 25% interrupts.CPU164.PMI:Performance_monitoring_interrupts 5793 ± 32% -33.4% 3860 interrupts.CPU170.NMI:Non-maskable_interrupts 5793 ± 32% -33.4% 3860 interrupts.CPU170.PMI:Performance_monitoring_interrupts 47.00 ±163% -97.3% 1.25 ± 34% interrupts.CPU182.RES:Rescheduling_interrupts 268.50 ±166% -99.2% 2.25 ± 19% interrupts.CPU190.RES:Rescheduling_interrupts 5833 ± 32% -35.0% 3794 interrupts.CPU198.NMI:Non-maskable_interrupts 5833 ± 32% -35.0% 3794 interrupts.CPU198.PMI:Performance_monitoring_interrupts 3869 +52.5% 5899 ± 32% interrupts.CPU20.NMI:Non-maskable_interrupts 3869 +52.5% 5899 ± 32% interrupts.CPU20.PMI:Performance_monitoring_interrupts 4775 ± 34% +62.3% 7748 interrupts.CPU210.NMI:Non-maskable_interrupts 4775 ± 34% +62.3% 7748 interrupts.CPU210.PMI:Performance_monitoring_interrupts 6790 ± 24% -43.6% 3833 interrupts.CPU212.NMI:Non-maskable_interrupts 6790 ± 24% -43.6% 3833 interrupts.CPU212.PMI:Performance_monitoring_interrupts 4817 ± 34% +40.4% 6763 ± 24% interrupts.CPU216.NMI:Non-maskable_interrupts 4817 ± 34% +40.4% 6763 ± 24% interrupts.CPU216.PMI:Performance_monitoring_interrupts 6800 ± 24% -28.8% 4844 ± 34% interrupts.CPU22.NMI:Non-maskable_interrupts 6800 ± 24% -28.8% 4844 ± 34% interrupts.CPU22.PMI:Performance_monitoring_interrupts 7698 -49.7% 3874 interrupts.CPU221.NMI:Non-maskable_interrupts 7698 -49.7% 3874 interrupts.CPU221.PMI:Performance_monitoring_interrupts 3848 +75.6% 6756 ± 24% interrupts.CPU223.NMI:Non-maskable_interrupts 3848 +75.6% 6756 ± 24% interrupts.CPU223.PMI:Performance_monitoring_interrupts 3814 +51.8% 5791 ± 32% interrupts.CPU226.NMI:Non-maskable_interrupts 3814 +51.8% 5791 ± 32% interrupts.CPU226.PMI:Performance_monitoring_interrupts 6774 ± 24% -28.2% 4864 ± 33% interrupts.CPU238.NMI:Non-maskable_interrupts 6774 ± 24% -28.2% 4864 ± 33% interrupts.CPU238.PMI:Performance_monitoring_interrupts 3848 +51.1% 5815 ± 33% interrupts.CPU254.NMI:Non-maskable_interrupts 3848 +51.1% 5815 ± 33% interrupts.CPU254.PMI:Performance_monitoring_interrupts 3841 +51.4% 5817 ± 33% interrupts.CPU258.NMI:Non-maskable_interrupts 3841 +51.4% 5817 ± 33% interrupts.CPU258.PMI:Performance_monitoring_interrupts 3864 +98.9% 7687 interrupts.CPU261.NMI:Non-maskable_interrupts 3864 +98.9% 7687 interrupts.CPU261.PMI:Performance_monitoring_interrupts 55.75 ±114% -96.9% 1.75 ± 47% interrupts.CPU264.RES:Rescheduling_interrupts 3812 +52.0% 5795 ± 33% interrupts.CPU284.NMI:Non-maskable_interrupts 3812 +52.0% 5795 ± 33% interrupts.CPU284.PMI:Performance_monitoring_interrupts 3836 +76.1% 6755 ± 23% interrupts.CPU286.NMI:Non-maskable_interrupts 3836 +76.1% 6755 ± 23% interrupts.CPU286.PMI:Performance_monitoring_interrupts 365.50 ±169% -98.8% 4.50 ±109% interrupts.CPU47.RES:Rescheduling_interrupts 79.00 ±168% -98.7% 1.00 interrupts.CPU49.RES:Rescheduling_interrupts 3867 +76.1% 6811 ± 24% interrupts.CPU52.NMI:Non-maskable_interrupts 3867 +76.1% 6811 ± 24% interrupts.CPU52.PMI:Performance_monitoring_interrupts 3866 +50.4% 5814 ± 33% interrupts.CPU57.NMI:Non-maskable_interrupts 3866 +50.4% 5814 ± 33% interrupts.CPU57.PMI:Performance_monitoring_interrupts 3805 +78.6% 6794 ± 24% interrupts.CPU60.NMI:Non-maskable_interrupts 3805 +78.6% 6794 ± 24% interrupts.CPU60.PMI:Performance_monitoring_interrupts 3895 +74.3% 6791 ± 24% interrupts.CPU78.NMI:Non-maskable_interrupts 3895 +74.3% 6791 ± 24% interrupts.CPU78.PMI:Performance_monitoring_interrupts 130579 +12.2% 146530 softirqs.CPU0.TIMER 129305 +12.8% 145873 ± 2% softirqs.CPU1.TIMER 129656 +12.6% 145982 softirqs.CPU10.TIMER 129973 +12.7% 146504 softirqs.CPU100.TIMER 130116 +12.2% 145948 softirqs.CPU101.TIMER 130029 +12.8% 146617 softirqs.CPU102.TIMER 129851 +12.8% 146441 softirqs.CPU103.TIMER 129723 +13.2% 146808 softirqs.CPU104.TIMER 130422 +12.1% 146173 softirqs.CPU106.TIMER 129536 +12.7% 146002 softirqs.CPU107.TIMER 132836 ± 5% +10.6% 146911 softirqs.CPU108.TIMER 129074 +13.2% 146139 softirqs.CPU109.TIMER 129335 +12.9% 146023 softirqs.CPU11.TIMER 129682 +12.7% 146174 softirqs.CPU110.TIMER 129383 +13.3% 146635 softirqs.CPU111.TIMER 129902 +12.7% 146428 softirqs.CPU112.TIMER 129745 +15.6% 150015 ± 4% softirqs.CPU113.TIMER 129647 +12.8% 146194 softirqs.CPU114.TIMER 129484 +12.5% 145634 softirqs.CPU115.TIMER 129898 +12.4% 145958 softirqs.CPU116.TIMER 130282 +12.3% 146327 softirqs.CPU117.TIMER 130010 +12.4% 146181 softirqs.CPU118.TIMER 130185 +12.1% 145973 softirqs.CPU119.TIMER 129606 +13.2% 146682 softirqs.CPU12.TIMER 129815 +12.8% 146440 softirqs.CPU120.TIMER 129801 +12.8% 146372 softirqs.CPU121.TIMER 130178 +12.1% 145949 softirqs.CPU122.TIMER 129362 +12.7% 145732 softirqs.CPU123.TIMER 129775 +13.2% 146861 softirqs.CPU124.TIMER 129808 +12.5% 145999 softirqs.CPU125.TIMER 130012 +11.1% 144470 softirqs.CPU126.TIMER 129918 +11.7% 145173 softirqs.CPU127.TIMER 130078 +12.1% 145875 softirqs.CPU128.TIMER 129305 +12.9% 146033 softirqs.CPU129.TIMER 130188 +12.2% 146023 softirqs.CPU13.TIMER 129812 +12.6% 146177 softirqs.CPU130.TIMER 132495 ± 4% +10.1% 145843 softirqs.CPU131.TIMER 129788 +12.6% 146104 softirqs.CPU132.TIMER 129588 +12.6% 145910 softirqs.CPU133.TIMER 129398 +12.7% 145821 softirqs.CPU134.TIMER 129138 +13.1% 146093 softirqs.CPU135.TIMER 129924 +11.9% 145438 softirqs.CPU136.TIMER 129628 +12.3% 145575 softirqs.CPU137.TIMER 129465 +12.9% 146130 softirqs.CPU138.TIMER 129265 +12.6% 145498 softirqs.CPU139.TIMER 129194 +13.5% 146688 softirqs.CPU14.TIMER 129749 +12.5% 145990 softirqs.CPU140.TIMER 129689 +12.1% 145381 softirqs.CPU141.TIMER 130822 +11.1% 145339 softirqs.CPU142.TIMER 129792 +11.4% 144575 softirqs.CPU143.TIMER 132249 ± 2% +10.1% 145572 softirqs.CPU144.TIMER 129142 +11.9% 144523 softirqs.CPU145.TIMER 130939 +11.5% 145962 softirqs.CPU146.TIMER 128899 +12.9% 145519 softirqs.CPU147.TIMER 129580 +12.5% 145729 softirqs.CPU148.TIMER 128830 +12.8% 145371 softirqs.CPU149.TIMER 130201 +14.2% 148716 ± 4% softirqs.CPU15.TIMER 129200 +13.0% 145943 softirqs.CPU150.TIMER 129164 +12.1% 144848 softirqs.CPU151.TIMER 129532 +12.4% 145642 softirqs.CPU152.TIMER 129501 +12.7% 145934 softirqs.CPU153.TIMER 129557 +12.7% 146061 softirqs.CPU154.TIMER 129320 +12.3% 145283 softirqs.CPU155.TIMER 129702 +12.3% 145705 softirqs.CPU156.TIMER 129463 +12.3% 145443 softirqs.CPU157.TIMER 129414 +12.9% 146093 softirqs.CPU158.TIMER 129346 +12.7% 145807 softirqs.CPU159.TIMER 129502 +12.8% 146023 softirqs.CPU16.TIMER 129332 +12.7% 145782 softirqs.CPU160.TIMER 129379 +13.1% 146374 softirqs.CPU161.TIMER 129815 +12.2% 145613 softirqs.CPU162.TIMER 128951 +13.0% 145710 softirqs.CPU163.TIMER 129475 +12.3% 145451 softirqs.CPU164.TIMER 129115 +13.0% 145929 softirqs.CPU165.TIMER 129377 +12.6% 145737 softirqs.CPU166.TIMER 129568 +12.4% 145656 softirqs.CPU167.TIMER 129673 +11.9% 145066 softirqs.CPU168.TIMER 129273 +12.5% 145480 softirqs.CPU169.TIMER 129428 +13.1% 146418 softirqs.CPU17.TIMER 129171 +12.7% 145627 softirqs.CPU170.TIMER 128630 +13.1% 145457 softirqs.CPU171.TIMER 129679 +12.9% 146347 softirqs.CPU172.TIMER 128767 +12.9% 145358 softirqs.CPU173.TIMER 129149 +13.1% 146083 softirqs.CPU174.TIMER 128986 +12.6% 145257 softirqs.CPU175.TIMER 129710 +12.8% 146322 softirqs.CPU176.TIMER 129180 +13.2% 146183 softirqs.CPU177.TIMER 129185 +13.5% 146610 softirqs.CPU178.TIMER 129411 +11.9% 144798 softirqs.CPU179.TIMER 129570 +13.2% 146629 softirqs.CPU18.TIMER 128724 +13.2% 145719 softirqs.CPU180.TIMER 128915 +13.4% 146179 softirqs.CPU181.TIMER 129599 +12.4% 145717 softirqs.CPU182.TIMER 129469 +12.2% 145312 softirqs.CPU183.TIMER 129460 +12.1% 145095 softirqs.CPU184.TIMER 129327 +11.5% 144254 ± 2% softirqs.CPU185.TIMER 129699 +12.2% 145566 softirqs.CPU186.TIMER 129153 +12.6% 145482 softirqs.CPU187.TIMER 129418 +12.4% 145407 softirqs.CPU188.TIMER 129144 +12.7% 145589 softirqs.CPU189.TIMER 129256 +12.6% 145507 softirqs.CPU19.TIMER 129055 +12.8% 145615 softirqs.CPU190.TIMER 129323 +12.8% 145837 softirqs.CPU191.TIMER 129541 +12.5% 145735 softirqs.CPU192.TIMER 129533 +12.3% 145524 softirqs.CPU193.TIMER 129178 +12.8% 145774 softirqs.CPU194.TIMER 128952 +12.4% 144943 softirqs.CPU195.TIMER 129146 +12.1% 144811 softirqs.CPU196.TIMER 128709 +12.9% 145249 softirqs.CPU197.TIMER 129463 +11.7% 144555 softirqs.CPU198.TIMER 129454 ± 2% +12.0% 145017 softirqs.CPU199.TIMER 130925 ± 2% +10.9% 145137 softirqs.CPU2.TIMER 129506 +12.4% 145629 softirqs.CPU20.TIMER 129327 +12.3% 145191 softirqs.CPU200.TIMER 128733 +12.6% 144998 softirqs.CPU201.TIMER 129210 +12.6% 145536 softirqs.CPU202.TIMER 128933 +12.1% 144551 softirqs.CPU203.TIMER 129584 +12.0% 145199 softirqs.CPU204.TIMER 128887 +12.8% 145431 softirqs.CPU205.TIMER 128595 +12.6% 144822 softirqs.CPU206.TIMER 128725 +12.4% 144674 softirqs.CPU207.TIMER 128957 +12.7% 145359 softirqs.CPU208.TIMER 128658 +13.1% 145493 softirqs.CPU209.TIMER 129376 +12.7% 145809 softirqs.CPU21.TIMER 129032 +12.5% 145139 softirqs.CPU210.TIMER 128496 +12.9% 145078 softirqs.CPU211.TIMER 128946 +14.9% 148096 ± 4% softirqs.CPU212.TIMER 128669 +15.1% 148061 ± 3% softirqs.CPU213.TIMER 129293 +11.9% 144730 softirqs.CPU214.TIMER 128832 +11.7% 143860 softirqs.CPU215.TIMER 128161 +13.6% 145642 softirqs.CPU216.TIMER 128166 +12.5% 144175 softirqs.CPU217.TIMER 129243 +12.3% 145112 softirqs.CPU218.TIMER 128892 +13.0% 145697 softirqs.CPU219.TIMER 129339 +13.1% 146296 softirqs.CPU22.TIMER 129239 +12.1% 144858 softirqs.CPU220.TIMER 128751 +12.7% 145040 softirqs.CPU221.TIMER 128496 +12.9% 145071 softirqs.CPU222.TIMER 128408 +13.0% 145061 softirqs.CPU223.TIMER 129023 +12.7% 145431 softirqs.CPU224.TIMER 129200 +12.9% 145824 softirqs.CPU225.TIMER 128658 +12.9% 145314 softirqs.CPU226.TIMER 128581 +12.8% 145080 softirqs.CPU227.TIMER 128959 +12.4% 144981 softirqs.CPU228.TIMER 128760 +12.9% 145359 softirqs.CPU229.TIMER 130169 +12.2% 146007 softirqs.CPU23.TIMER 128855 +12.5% 144977 softirqs.CPU230.TIMER 128140 +13.1% 144937 softirqs.CPU231.TIMER 128772 +12.6% 144942 softirqs.CPU232.TIMER 128750 +13.0% 145443 softirqs.CPU233.TIMER 128567 +13.0% 145274 softirqs.CPU234.TIMER 128442 +13.2% 145350 softirqs.CPU235.TIMER 128661 +12.6% 144843 softirqs.CPU236.TIMER 128471 +12.7% 144773 softirqs.CPU237.TIMER 128198 +13.2% 145117 softirqs.CPU238.TIMER 131515 ± 4% +10.3% 145072 softirqs.CPU239.TIMER 129458 +14.0% 147638 ± 4% softirqs.CPU24.TIMER 128926 +12.1% 144540 softirqs.CPU240.TIMER 128797 +12.4% 144775 softirqs.CPU241.TIMER 128442 +13.1% 145300 softirqs.CPU242.TIMER 128548 +13.5% 145844 softirqs.CPU243.TIMER 128906 +12.9% 145546 softirqs.CPU244.TIMER 128510 +12.7% 144774 softirqs.CPU245.TIMER 128615 +13.0% 145313 softirqs.CPU246.TIMER 128540 +13.2% 145480 softirqs.CPU247.TIMER 128445 +13.1% 145333 softirqs.CPU248.TIMER 127260 +14.2% 145315 softirqs.CPU249.TIMER 130145 +11.9% 145569 softirqs.CPU25.TIMER 128726 +12.7% 145030 softirqs.CPU250.TIMER 128132 +13.3% 145165 softirqs.CPU251.TIMER 128137 +13.5% 145424 softirqs.CPU252.TIMER 128223 +12.8% 144586 softirqs.CPU253.TIMER 128833 +12.9% 145421 softirqs.CPU254.TIMER 128439 +12.7% 144753 softirqs.CPU255.TIMER 128587 +12.0% 143988 softirqs.CPU256.TIMER 128416 +18.0% 151563 ± 7% softirqs.CPU257.TIMER 128549 +13.2% 145523 softirqs.CPU258.TIMER 128456 +12.5% 144478 softirqs.CPU259.TIMER 129294 +13.2% 146314 softirqs.CPU26.TIMER 128677 +12.8% 145200 softirqs.CPU260.TIMER 129165 +12.1% 144829 softirqs.CPU261.TIMER 128597 +13.1% 145385 softirqs.CPU262.TIMER 128572 +13.0% 145298 softirqs.CPU263.TIMER 128729 +12.6% 145012 softirqs.CPU264.TIMER 128656 +12.6% 144902 softirqs.CPU265.TIMER 128688 +12.8% 145216 softirqs.CPU266.TIMER 128222 +12.6% 144428 softirqs.CPU267.TIMER 128316 +13.2% 145235 softirqs.CPU268.TIMER 128376 +12.9% 144961 softirqs.CPU269.TIMER 129280 +12.9% 145915 softirqs.CPU27.TIMER 128630 ± 2% +11.3% 143179 softirqs.CPU270.TIMER 129007 +11.8% 144177 softirqs.CPU271.TIMER 127814 +12.9% 144362 softirqs.CPU272.TIMER 127860 +13.2% 144798 softirqs.CPU273.TIMER 127459 +12.9% 143962 softirqs.CPU274.TIMER 126856 +13.6% 144136 softirqs.CPU275.TIMER 127923 +12.5% 143920 softirqs.CPU276.TIMER 127645 +13.1% 144382 softirqs.CPU277.TIMER 127237 +13.5% 144373 softirqs.CPU278.TIMER 127758 +12.7% 143933 softirqs.CPU279.TIMER 129558 +12.7% 146035 softirqs.CPU28.TIMER 127876 +12.5% 143909 softirqs.CPU280.TIMER 127869 +12.7% 144058 softirqs.CPU281.TIMER 127603 +12.3% 143331 softirqs.CPU282.TIMER 127615 +12.5% 143517 softirqs.CPU283.TIMER 127592 +19.0% 151841 ± 10% softirqs.CPU284.TIMER 127604 +12.7% 143805 softirqs.CPU287.TIMER 129893 +12.2% 145727 softirqs.CPU29.TIMER 129408 +12.0% 144986 softirqs.CPU3.TIMER 129250 +12.9% 145873 softirqs.CPU30.TIMER 129703 +12.5% 145923 softirqs.CPU31.TIMER 129609 +13.0% 146422 softirqs.CPU32.TIMER 129390 +13.2% 146472 softirqs.CPU33.TIMER 129562 +12.2% 145344 softirqs.CPU34.TIMER 128950 +13.1% 145898 softirqs.CPU35.TIMER 128787 +13.3% 145950 softirqs.CPU36.TIMER 129130 +12.7% 145513 softirqs.CPU37.TIMER 129191 +13.3% 146389 softirqs.CPU38.TIMER 129298 +12.7% 145774 softirqs.CPU39.TIMER 130067 +13.7% 147949 ± 3% softirqs.CPU4.TIMER 129669 +12.4% 145804 softirqs.CPU40.TIMER 129516 +12.2% 145339 softirqs.CPU41.TIMER 133127 ± 3% +12.2% 149413 ± 4% softirqs.CPU42.TIMER 129375 +12.8% 145952 softirqs.CPU43.TIMER 131848 ± 3% +10.6% 145875 softirqs.CPU44.TIMER 129154 +13.3% 146280 softirqs.CPU46.TIMER 129539 +13.0% 146329 softirqs.CPU47.TIMER 129638 +13.1% 146579 softirqs.CPU48.TIMER 129426 +12.9% 146108 softirqs.CPU49.TIMER 129600 +12.8% 146183 softirqs.CPU5.TIMER 129905 +12.5% 146087 softirqs.CPU50.TIMER 129022 +12.9% 145651 softirqs.CPU51.TIMER 129770 +12.7% 146232 softirqs.CPU52.TIMER 129292 +13.1% 146209 softirqs.CPU53.TIMER 5433 ± 28% +30.3% 7080 ± 30% softirqs.CPU54.RCU 129836 +12.1% 145500 softirqs.CPU55.TIMER 129356 +12.8% 145955 softirqs.CPU56.TIMER 129567 +12.6% 145903 softirqs.CPU57.TIMER 128936 +12.9% 145514 softirqs.CPU58.TIMER 129375 +12.9% 146028 softirqs.CPU59.TIMER 129142 +13.9% 147056 softirqs.CPU6.TIMER 129595 +12.5% 145800 softirqs.CPU60.TIMER 128913 +13.1% 145794 softirqs.CPU61.TIMER 129061 +12.5% 145181 softirqs.CPU62.TIMER 129352 +12.6% 145689 softirqs.CPU63.TIMER 129444 +12.7% 145937 softirqs.CPU64.TIMER 129390 +13.1% 146375 softirqs.CPU65.TIMER 128786 +13.6% 146311 softirqs.CPU66.TIMER 128852 +12.8% 145342 softirqs.CPU67.TIMER 129554 +11.8% 144858 softirqs.CPU68.TIMER 129448 +12.1% 145164 ± 2% softirqs.CPU69.TIMER 129506 +13.1% 146430 softirqs.CPU7.TIMER 129299 +12.8% 145841 softirqs.CPU70.TIMER 129438 +12.0% 144997 softirqs.CPU71.TIMER 132769 ± 3% +12.6% 149510 ± 2% softirqs.CPU72.TIMER 129179 +13.0% 145909 softirqs.CPU73.TIMER 129615 +12.8% 146157 softirqs.CPU74.TIMER 129585 +12.0% 145130 softirqs.CPU75.TIMER 129413 +13.2% 146437 softirqs.CPU76.TIMER 129681 +13.0% 146590 softirqs.CPU77.TIMER 129190 +13.2% 146279 softirqs.CPU78.TIMER 129110 +13.0% 145898 softirqs.CPU79.TIMER 130097 +13.4% 147549 ± 2% softirqs.CPU8.TIMER 130307 +12.4% 146504 softirqs.CPU80.TIMER 130075 +12.7% 146539 softirqs.CPU81.TIMER 129815 +12.6% 146162 softirqs.CPU82.TIMER 129831 +12.3% 145840 softirqs.CPU83.TIMER 130013 +12.8% 146701 softirqs.CPU84.TIMER 130069 +11.9% 145602 softirqs.CPU85.TIMER 132522 ± 4% +10.2% 145979 softirqs.CPU86.TIMER 130180 +12.3% 146145 softirqs.CPU87.TIMER 129819 +12.9% 146559 softirqs.CPU88.TIMER 129855 +12.5% 146133 softirqs.CPU89.TIMER 130079 +12.5% 146311 softirqs.CPU9.TIMER 129923 +12.7% 146468 softirqs.CPU90.TIMER 130267 +12.0% 145925 softirqs.CPU91.TIMER 129297 +13.2% 146376 softirqs.CPU92.TIMER 130213 +12.3% 146200 softirqs.CPU93.TIMER 129837 +12.8% 146429 softirqs.CPU94.TIMER 129618 +12.9% 146323 softirqs.CPU95.TIMER 129948 +12.8% 146534 softirqs.CPU96.TIMER 129778 +12.8% 146432 softirqs.CPU97.TIMER 129842 +13.2% 146945 softirqs.CPU98.TIMER 129713 +13.0% 146545 softirqs.CPU99.TIMER 37293358 +12.6% 41975755 softirqs.TIMER will-it-scale.per_thread_ops 350 +-+-------------------------O--O---O-O------O-------------------------+ O O O O O O O OO O O | 300 +-+ O OO O O O O O O | | | 250 +-+ .+. .+. | |.+.+. +.+ + ++.+.+ +. +. .+.| 200 +-+ + : : + : + +.++.+ | | : : : : : : | 150 +-+ : : : : : : | | : : : : : : | 100 +-+ : : : : : : | | : : : : : : | 50 +-+ : : : : : | | : : : : : | 0 +-+------------O------O-----------------------------------------------+ will-it-scale.workload 100000 +-+-----------------------O---O---OO-----OO-O-O--------------------+ 90000 O-O OO O OO O O O O O O O | | O O O | 80000 +-+ | 70000 +-+ .+.+ .+. +. | |.+.++.+ + +.+ + + +. .+. .+.| 60000 +-+ : :+ : + + ++ | 50000 +-+ : :: : : : | 40000 +-+ : : : : : : | | : : : : : : | 30000 +-+ : : : : : : | 20000 +-+ : : : : : : | | : : : : : | 10000 +-+ : : : : : | 0 +-+-----------O------O---------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample *************************************************************************************************** lkp-knm01: 288 threads Intel(R) Xeon Phi(TM) CPU 7295 @ 1.50GHz with 80G memory ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase: gcc-7/performance/x86_64-rhel-7.6/process/100%/debian-x86_64-2018-04-03.cgz/lkp-knm01/malloc1/will-it-scale commit: 6a4d1b18ef ("crypto: scompress - return proper error code for allocation failure") 71052dcf4b ("crypto: scompress - Use per-CPU struct instead multiple variables") 6a4d1b18ef00a7b1 71052dcf4be70be4077817297dc ---------------- --------------------------- %stddev %change %stddev \ | \ 640.50 +26.3% 809.00 will-it-scale.per_process_ops 8030 -1.4% 7916 will-it-scale.time.maximum_resident_set_size 184708 +26.2% 233116 will-it-scale.workload 751836 ± 5% -13.6% 649948 ± 3% meminfo.DirectMap4k 2.69 ± 4% -7.3% 2.49 turbostat.RAMWatt 2120 -2.0% 2078 vmstat.system.cs 6381 ± 37% -68.0% 2043 ± 43% cpuidle.POLL.time 221.00 ± 13% -62.2% 83.50 ± 11% cpuidle.POLL.usage 0.00 ± 11% -0.0 0.00 ± 9% mpstat.cpu.all.soft% 0.46 +0.1 0.57 ± 5% mpstat.cpu.all.usr% 39098 -10.1% 35164 ± 3% numa-meminfo.node0.Mapped 16078 ± 3% -6.1% 15099 numa-meminfo.node1.SUnreclaim 1.118e+08 +26.2% 1.411e+08 numa-numastat.node0.local_node 1.118e+08 +26.2% 1.411e+08 numa-numastat.node0.numa_hit 46.62 -2.3% 45.55 boot-time.boot 33.98 -2.4% 33.16 ± 2% boot-time.dhcp 11319 -2.5% 11036 ± 2% boot-time.idle 9718 ± 2% -8.6% 8881 ± 3% numa-vmstat.node0.nr_mapped 57373107 +24.8% 71596585 numa-vmstat.node0.numa_hit 57373864 +24.8% 71597286 numa-vmstat.node0.numa_local 4019 ± 3% -6.1% 3774 numa-vmstat.node1.nr_slab_unreclaimable 1.04 -0.1 0.90 ± 2% perf-profile.calltrace.cycles-pp.__do_page_fault.do_page_fault.page_fault 1.09 -0.1 0.97 ± 2% perf-profile.calltrace.cycles-pp.do_page_fault.page_fault 1.09 -0.1 0.97 ± 2% perf-profile.calltrace.cycles-pp.page_fault 0.85 -0.1 0.76 ± 2% perf-profile.calltrace.cycles-pp.handle_mm_fault.__do_page_fault.do_page_fault.page_fault 0.80 -0.1 0.71 perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault 0.72 -0.1 0.64 ± 2% perf-profile.calltrace.cycles-pp.do_anonymous_page.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault 1582 ± 13% -29.0% 1123 ± 3% slabinfo.dmaengine-unmap-16.active_objs 1582 ± 13% -29.0% 1123 ± 3% slabinfo.dmaengine-unmap-16.num_objs 1517 ± 6% -9.2% 1378 ± 9% slabinfo.file_lock_cache.active_objs 1517 ± 6% -9.2% 1378 ± 9% slabinfo.file_lock_cache.num_objs 504.00 ± 8% -29.2% 357.00 ± 5% slabinfo.kmem_cache.active_objs 504.00 ± 8% -29.2% 357.00 ± 5% slabinfo.kmem_cache.num_objs 846.00 ± 7% -26.5% 622.00 ± 5% slabinfo.kmem_cache_node.active_objs 896.00 ± 7% -25.0% 672.00 ± 4% slabinfo.kmem_cache_node.num_objs 1595 ± 3% -9.0% 1452 ± 6% slabinfo.pool_workqueue.num_objs 5684 -1.1% 5619 proc-vmstat.nr_inactive_anon 12244 -8.3% 11233 ± 2% proc-vmstat.nr_mapped 44956 -2.6% 43768 proc-vmstat.nr_shmem 5684 -1.1% 5619 proc-vmstat.nr_zone_inactive_anon 1.117e+08 +26.1% 1.409e+08 proc-vmstat.numa_hit 1.117e+08 +26.1% 1.409e+08 proc-vmstat.numa_local 6696 ± 3% -11.5% 5923 ± 4% proc-vmstat.pgactivate 1.119e+08 +26.1% 1.412e+08 proc-vmstat.pgalloc_normal 56263457 +26.0% 70898353 proc-vmstat.pgfault 1.118e+08 +26.2% 1.411e+08 proc-vmstat.pgfree 134341 ± 6% -10.6% 120099 softirqs.CPU116.TIMER 27993 ± 9% -99.0% 284.00 ± 40% softirqs.CPU17.NET_RX 131921 ± 2% -8.3% 120986 softirqs.CPU17.TIMER 131982 ± 3% -9.0% 120071 softirqs.CPU192.TIMER 133187 ± 4% -10.1% 119788 softirqs.CPU208.TIMER 141607 ± 12% -15.7% 119349 softirqs.CPU274.TIMER 150281 ± 16% -20.7% 119207 softirqs.CPU276.TIMER 10141 -57.2% 4340 ± 21% softirqs.CPU72.RCU 138167 -12.3% 121165 softirqs.CPU72.TIMER 29873 ± 7% -93.4% 1967 ± 7% softirqs.NET_RX 17.37 ± 71% -75.7% 4.22 ± 6% sched_debug.cfs_rq:/.load_avg.avg 3969 ± 87% -92.5% 296.20 ± 9% sched_debug.cfs_rq:/.load_avg.max 237.20 ± 87% -92.0% 19.01 ± 9% sched_debug.cfs_rq:/.load_avg.stddev -5164976 -15.8% -4346453 sched_debug.cfs_rq:/.spread0.min 3.93 ± 8% -13.7% 3.40 ± 2% sched_debug.cpu.cpu_load[0].avg 330.10 ± 25% -28.5% 235.95 ± 3% sched_debug.cpu.cpu_load[0].max 20.27 ± 21% -28.9% 14.42 ± 4% sched_debug.cpu.cpu_load[0].stddev 3.80 ± 4% -10.4% 3.41 ± 2% sched_debug.cpu.cpu_load[1].avg 281.90 ± 13% -16.3% 235.85 ± 3% sched_debug.cpu.cpu_load[1].max 17.60 ± 9% -18.1% 14.41 ± 4% sched_debug.cpu.cpu_load[1].stddev 3.73 -8.3% 3.42 ± 2% sched_debug.cpu.cpu_load[2].avg 257.00 ± 4% -8.0% 236.40 ± 3% sched_debug.cpu.cpu_load[2].max 16.36 ± 2% -11.3% 14.51 ± 4% sched_debug.cpu.cpu_load[2].stddev 0.13 -15.6% 0.11 ± 12% sched_debug.cpu.nr_running.stddev 9.95 +9.2% 10.87 perf-stat.i.MPKI 9.885e+09 +1.7% 1.006e+10 perf-stat.i.branch-instructions 1.08 +0.1 1.22 perf-stat.i.branch-miss-rate% 1.066e+08 +15.1% 1.226e+08 perf-stat.i.branch-misses 11.81 -0.8 11.05 ± 2% perf-stat.i.cache-miss-rate% 4.027e+08 +11.5% 4.49e+08 ± 2% perf-stat.i.cache-references 2048 -2.2% 2003 perf-stat.i.context-switches 11.16 -1.8% 10.96 perf-stat.i.cpi 9514 ± 3% -3.9% 9138 perf-stat.i.cycles-between-cache-misses 0.16 +0.0 0.18 perf-stat.i.iTLB-load-miss-rate% 62886072 +19.3% 75036125 perf-stat.i.iTLB-load-misses 4.04e+10 +2.1% 4.124e+10 perf-stat.i.iTLB-loads 4.046e+10 +2.1% 4.129e+10 perf-stat.i.instructions 644.65 -14.6% 550.82 perf-stat.i.instructions-per-iTLB-miss 0.09 +1.9% 0.09 perf-stat.i.ipc 186582 +26.0% 235021 perf-stat.i.minor-faults 186870 +26.0% 235403 perf-stat.i.page-faults 9.95 +9.2% 10.87 perf-stat.overall.MPKI 1.08 +0.1 1.22 perf-stat.overall.branch-miss-rate% 11.82 -0.8 11.05 ± 2% perf-stat.overall.cache-miss-rate% 11.16 -1.8% 10.96 perf-stat.overall.cpi 9497 ± 3% -3.9% 9122 perf-stat.overall.cycles-between-cache-misses 0.16 +0.0 0.18 perf-stat.overall.iTLB-load-miss-rate% 643.60 -14.5% 550.27 perf-stat.overall.instructions-per-iTLB-miss 0.09 +1.9% 0.09 perf-stat.overall.ipc 64136162 -18.9% 52013113 perf-stat.overall.path-length 9.786e+09 +1.9% 9.967e+09 perf-stat.ps.branch-instructions 1.054e+08 +15.3% 1.215e+08 perf-stat.ps.branch-misses 3.986e+08 +11.6% 4.451e+08 ± 2% perf-stat.ps.cache-references 2033 -2.0% 1992 perf-stat.ps.context-switches 62235957 +19.5% 74377952 perf-stat.ps.iTLB-load-misses 3.998e+10 +2.2% 4.087e+10 perf-stat.ps.iTLB-loads 4.005e+10 +2.2% 4.093e+10 perf-stat.ps.instructions 185175 +26.1% 233489 perf-stat.ps.minor-faults 185171 +26.1% 233535 perf-stat.ps.page-faults 1.185e+13 +2.3% 1.212e+13 perf-stat.total.instructions 43805 ± 39% -99.1% 411.25 ± 49% interrupts.37:IR-PCI-MSI.2621443-edge.eth1-TxRx-2 700518 +5.4% 738269 interrupts.CAL:Function_call_interrupts 1391 -14.1% 1194 ± 9% interrupts.CPU0.RES:Rescheduling_interrupts 2370 +10.2% 2612 interrupts.CPU101.CAL:Function_call_interrupts 5760 ± 33% -33.7% 3820 interrupts.CPU101.NMI:Non-maskable_interrupts 5760 ± 33% -33.7% 3820 interrupts.CPU101.PMI:Performance_monitoring_interrupts 117.00 ± 97% -98.3% 2.00 ± 35% interrupts.CPU101.RES:Rescheduling_interrupts 7744 -50.4% 3842 interrupts.CPU108.NMI:Non-maskable_interrupts 7744 -50.4% 3842 interrupts.CPU108.PMI:Performance_monitoring_interrupts 7694 -37.9% 4777 ± 34% interrupts.CPU11.NMI:Non-maskable_interrupts 7694 -37.9% 4777 ± 34% interrupts.CPU11.PMI:Performance_monitoring_interrupts 81.50 ± 47% -72.1% 22.75 ±158% interrupts.CPU112.RES:Rescheduling_interrupts 7727 -50.2% 3851 interrupts.CPU116.NMI:Non-maskable_interrupts 7727 -50.2% 3851 interrupts.CPU116.PMI:Performance_monitoring_interrupts 7680 -37.6% 4790 ± 34% interrupts.CPU121.NMI:Non-maskable_interrupts 7680 -37.6% 4790 ± 34% interrupts.CPU121.PMI:Performance_monitoring_interrupts 5780 ± 33% -34.3% 3798 interrupts.CPU144.NMI:Non-maskable_interrupts 5780 ± 33% -34.3% 3798 interrupts.CPU144.PMI:Performance_monitoring_interrupts 7690 -50.3% 3824 interrupts.CPU146.NMI:Non-maskable_interrupts 7690 -50.3% 3824 interrupts.CPU146.PMI:Performance_monitoring_interrupts 5793 ± 33% -33.7% 3839 interrupts.CPU147.NMI:Non-maskable_interrupts 5793 ± 33% -33.7% 3839 interrupts.CPU147.PMI:Performance_monitoring_interrupts 5797 ± 32% -33.5% 3857 interrupts.CPU15.NMI:Non-maskable_interrupts 5797 ± 32% -33.5% 3857 interrupts.CPU15.PMI:Performance_monitoring_interrupts 7693 -50.5% 3811 interrupts.CPU150.NMI:Non-maskable_interrupts 7693 -50.5% 3811 interrupts.CPU150.PMI:Performance_monitoring_interrupts 533.50 ± 92% -99.6% 2.25 ± 57% interrupts.CPU153.RES:Rescheduling_interrupts 3826 +50.3% 5749 ± 32% interrupts.CPU157.NMI:Non-maskable_interrupts 3826 +50.3% 5749 ± 32% interrupts.CPU157.PMI:Performance_monitoring_interrupts 3815 +51.6% 5783 ± 33% interrupts.CPU16.NMI:Non-maskable_interrupts 3815 +51.6% 5783 ± 33% interrupts.CPU16.PMI:Performance_monitoring_interrupts 7706 -37.8% 4791 ± 33% interrupts.CPU165.NMI:Non-maskable_interrupts 7706 -37.8% 4791 ± 33% interrupts.CPU165.PMI:Performance_monitoring_interrupts 5826 ± 33% -17.6% 4802 ± 33% interrupts.CPU169.NMI:Non-maskable_interrupts 5826 ± 33% -17.6% 4802 ± 33% interrupts.CPU169.PMI:Performance_monitoring_interrupts 43805 ± 39% -99.1% 411.25 ± 49% interrupts.CPU17.37:IR-PCI-MSI.2621443-edge.eth1-TxRx-2 287.50 ± 84% -99.7% 1.00 interrupts.CPU175.RES:Rescheduling_interrupts 7811 -51.2% 3812 interrupts.CPU18.NMI:Non-maskable_interrupts 7811 -51.2% 3812 interrupts.CPU18.PMI:Performance_monitoring_interrupts 59.50 ± 94% -98.3% 1.00 interrupts.CPU185.RES:Rescheduling_interrupts 1.50 ± 33% +7516.7% 114.25 ±105% interrupts.CPU192.RES:Rescheduling_interrupts 7737 -37.8% 4811 ± 35% interrupts.CPU193.NMI:Non-maskable_interrupts 7737 -37.8% 4811 ± 35% interrupts.CPU193.PMI:Performance_monitoring_interrupts 5752 ± 33% -33.6% 3820 interrupts.CPU195.NMI:Non-maskable_interrupts 5752 ± 33% -33.6% 3820 interrupts.CPU195.PMI:Performance_monitoring_interrupts 5782 ± 32% -33.9% 3820 interrupts.CPU197.NMI:Non-maskable_interrupts 5782 ± 32% -33.9% 3820 interrupts.CPU197.PMI:Performance_monitoring_interrupts 395.50 ± 98% -99.6% 1.75 ± 24% interrupts.CPU202.RES:Rescheduling_interrupts 5773 ± 32% -34.1% 3803 interrupts.CPU203.NMI:Non-maskable_interrupts 5773 ± 32% -34.1% 3803 interrupts.CPU203.PMI:Performance_monitoring_interrupts 177.00 ± 92% -99.0% 1.75 ± 47% interrupts.CPU204.RES:Rescheduling_interrupts 5769 ± 31% -34.1% 3802 interrupts.CPU206.NMI:Non-maskable_interrupts 5769 ± 31% -34.1% 3802 interrupts.CPU206.PMI:Performance_monitoring_interrupts 3850 +99.3% 7673 interrupts.CPU212.NMI:Non-maskable_interrupts 3850 +99.3% 7673 interrupts.CPU212.PMI:Performance_monitoring_interrupts 5771 ± 32% -33.7% 3825 interrupts.CPU218.NMI:Non-maskable_interrupts 5771 ± 32% -33.7% 3825 interrupts.CPU218.PMI:Performance_monitoring_interrupts 7646 -37.0% 4814 ± 34% interrupts.CPU219.NMI:Non-maskable_interrupts 7646 -37.0% 4814 ± 34% interrupts.CPU219.PMI:Performance_monitoring_interrupts 7710 -37.8% 4799 ± 34% interrupts.CPU222.NMI:Non-maskable_interrupts 7710 -37.8% 4799 ± 34% interrupts.CPU222.PMI:Performance_monitoring_interrupts 5768 ± 32% -33.6% 3829 interrupts.CPU223.NMI:Non-maskable_interrupts 5768 ± 32% -33.6% 3829 interrupts.CPU223.PMI:Performance_monitoring_interrupts 192.00 ± 74% -98.2% 3.50 ± 91% interrupts.CPU228.RES:Rescheduling_interrupts 3841 +100.0% 7684 interrupts.CPU229.NMI:Non-maskable_interrupts 3841 +100.0% 7684 interrupts.CPU229.PMI:Performance_monitoring_interrupts 7725 -38.3% 4765 ± 35% interrupts.CPU232.NMI:Non-maskable_interrupts 7725 -38.3% 4765 ± 35% interrupts.CPU232.PMI:Performance_monitoring_interrupts 454.50 ± 76% -74.4% 116.25 ± 97% interrupts.CPU239.RES:Rescheduling_interrupts 5792 ± 33% -17.3% 4790 ± 34% interrupts.CPU241.NMI:Non-maskable_interrupts 5792 ± 33% -17.3% 4790 ± 34% interrupts.CPU241.PMI:Performance_monitoring_interrupts 3815 +101.6% 7691 interrupts.CPU243.NMI:Non-maskable_interrupts 3815 +101.6% 7691 interrupts.CPU243.PMI:Performance_monitoring_interrupts 204.50 ± 92% -97.2% 5.75 ±133% interrupts.CPU247.RES:Rescheduling_interrupts 7702 -37.6% 4808 ± 35% interrupts.CPU256.NMI:Non-maskable_interrupts 7702 -37.6% 4808 ± 35% interrupts.CPU256.PMI:Performance_monitoring_interrupts 5809 ± 32% -17.4% 4798 ± 35% interrupts.CPU257.NMI:Non-maskable_interrupts 5809 ± 32% -17.4% 4798 ± 35% interrupts.CPU257.PMI:Performance_monitoring_interrupts 5801 ± 32% -17.7% 4773 ± 35% interrupts.CPU258.NMI:Non-maskable_interrupts 5801 ± 32% -17.7% 4773 ± 35% interrupts.CPU258.PMI:Performance_monitoring_interrupts 7640 -37.1% 4809 ± 34% interrupts.CPU262.NMI:Non-maskable_interrupts 7640 -37.1% 4809 ± 34% interrupts.CPU262.PMI:Performance_monitoring_interrupts 3.50 ± 71% +17707.1% 623.25 ±130% interrupts.CPU264.RES:Rescheduling_interrupts 3812 +100.7% 7650 interrupts.CPU267.NMI:Non-maskable_interrupts 3812 +100.7% 7650 interrupts.CPU267.PMI:Performance_monitoring_interrupts 5781 ± 32% -17.3% 4782 ± 34% interrupts.CPU272.NMI:Non-maskable_interrupts 5781 ± 32% -17.3% 4782 ± 34% interrupts.CPU272.PMI:Performance_monitoring_interrupts 3815 +76.7% 6741 ± 24% interrupts.CPU277.NMI:Non-maskable_interrupts 3815 +76.7% 6741 ± 24% interrupts.CPU277.PMI:Performance_monitoring_interrupts 2.00 +10337.5% 208.75 ±170% interrupts.CPU278.RES:Rescheduling_interrupts 5837 ± 32% -17.4% 4819 ± 34% interrupts.CPU283.NMI:Non-maskable_interrupts 5837 ± 32% -17.4% 4819 ± 34% interrupts.CPU283.PMI:Performance_monitoring_interrupts 7711 -37.9% 4789 ± 35% interrupts.CPU285.NMI:Non-maskable_interrupts 7711 -37.9% 4789 ± 35% interrupts.CPU285.PMI:Performance_monitoring_interrupts 7731 -38.1% 4788 ± 34% interrupts.CPU3.NMI:Non-maskable_interrupts 7731 -38.1% 4788 ± 34% interrupts.CPU3.PMI:Performance_monitoring_interrupts 5768 ± 32% -33.3% 3847 interrupts.CPU32.NMI:Non-maskable_interrupts 5768 ± 32% -33.3% 3847 interrupts.CPU32.PMI:Performance_monitoring_interrupts 3893 +72.8% 6728 ± 23% interrupts.CPU39.NMI:Non-maskable_interrupts 3893 +72.8% 6728 ± 23% interrupts.CPU39.PMI:Performance_monitoring_interrupts 5809 ± 33% -17.9% 4771 ± 35% interrupts.CPU4.NMI:Non-maskable_interrupts 5809 ± 33% -17.9% 4771 ± 35% interrupts.CPU4.PMI:Performance_monitoring_interrupts 7712 -50.2% 3841 interrupts.CPU44.NMI:Non-maskable_interrupts 7712 -50.2% 3841 interrupts.CPU44.PMI:Performance_monitoring_interrupts 4.50 ± 55% +8027.8% 365.75 ± 44% interrupts.CPU48.RES:Rescheduling_interrupts 64.50 ± 93% -85.7% 9.25 ±123% interrupts.CPU51.RES:Rescheduling_interrupts 7727 -37.4% 4840 ± 34% interrupts.CPU54.NMI:Non-maskable_interrupts 7727 -37.4% 4840 ± 34% interrupts.CPU54.PMI:Performance_monitoring_interrupts 7625 -49.7% 3838 interrupts.CPU56.NMI:Non-maskable_interrupts 7625 -49.7% 3838 interrupts.CPU56.PMI:Performance_monitoring_interrupts 5810 ± 33% -17.6% 4785 ± 34% interrupts.CPU57.NMI:Non-maskable_interrupts 5810 ± 33% -17.6% 4785 ± 34% interrupts.CPU57.PMI:Performance_monitoring_interrupts 2092 ± 9% +23.4% 2582 interrupts.CPU59.CAL:Function_call_interrupts 7652 -49.9% 3834 interrupts.CPU59.NMI:Non-maskable_interrupts 7652 -49.9% 3834 interrupts.CPU59.PMI:Performance_monitoring_interrupts 552.00 ± 96% -64.4% 196.25 ±170% interrupts.CPU59.RES:Rescheduling_interrupts 126.50 ± 92% -97.8% 2.75 ± 47% interrupts.CPU60.RES:Rescheduling_interrupts 7671 -37.3% 4812 ± 34% interrupts.CPU61.NMI:Non-maskable_interrupts 7671 -37.3% 4812 ± 34% interrupts.CPU61.PMI:Performance_monitoring_interrupts 81.50 ± 77% -97.5% 2.00 ± 35% interrupts.CPU61.RES:Rescheduling_interrupts 7718 -38.0% 4785 ± 34% interrupts.CPU64.NMI:Non-maskable_interrupts 7718 -38.0% 4785 ± 34% interrupts.CPU64.PMI:Performance_monitoring_interrupts 5847 ± 33% -34.9% 3805 interrupts.CPU67.NMI:Non-maskable_interrupts 5847 ± 33% -34.9% 3805 interrupts.CPU67.PMI:Performance_monitoring_interrupts 3783 +52.3% 5763 ± 33% interrupts.CPU75.NMI:Non-maskable_interrupts 3783 +52.3% 5763 ± 33% interrupts.CPU75.PMI:Performance_monitoring_interrupts 7697 -50.1% 3840 interrupts.CPU79.NMI:Non-maskable_interrupts 7697 -50.1% 3840 interrupts.CPU79.PMI:Performance_monitoring_interrupts 7729 -50.3% 3845 interrupts.CPU83.NMI:Non-maskable_interrupts 7729 -50.3% 3845 interrupts.CPU83.PMI:Performance_monitoring_interrupts 7753 -38.3% 4781 ± 34% interrupts.CPU84.NMI:Non-maskable_interrupts 7753 -38.3% 4781 ± 34% interrupts.CPU84.PMI:Performance_monitoring_interrupts 5759 ± 32% -33.9% 3808 interrupts.CPU93.NMI:Non-maskable_interrupts 5759 ± 32% -33.9% 3808 interrupts.CPU93.PMI:Performance_monitoring_interrupts 3821 +75.6% 6709 ± 24% interrupts.CPU94.NMI:Non-maskable_interrupts 3821 +75.6% 6709 ± 24% interrupts.CPU94.PMI:Performance_monitoring_interrupts 7686 -37.3% 4817 ± 34% interrupts.CPU96.NMI:Non-maskable_interrupts 7686 -37.3% 4817 ± 34% interrupts.CPU96.PMI:Performance_monitoring_interrupts 5752 ± 33% -33.6% 3818 interrupts.CPU98.NMI:Non-maskable_interrupts 5752 ± 33% -33.6% 3818 interrupts.CPU98.PMI:Performance_monitoring_interrupts Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Rong Chen

3 years, 4 months

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[locking/rwsem] 46ad0840b1: reaim.jobs_per_min -3.4% regression

by kernel test robot

Greeting, FYI, we noticed a -3.4% regression of reaim.jobs_per_min due to commit: commit: 46ad0840b1584b92b5ff2cc3ed0b011dd6b8e0f1 ("locking/rwsem: Remove arch specific rwsem files") https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git WIP.locking/core in testcase: reaim on test machine: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 64G memory with following parameters: runtime: 300s nr_task: 100t test: fork_test cpufreq_governor: performance ucode: 0x42d test-description: REAIM is an updated and improved version of AIM 7 benchmark. test-url: https://sourceforge.net/projects/re-aim-7/ Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= compiler/cpufreq_governor/kconfig/nr_task/rootfs/runtime/tbox_group/test/testcase/ucode: gcc-7/performance/x86_64-rhel-7.6/100t/debian-x86_64-2018-04-03.cgz/300s/ivb44/fork_test/reaim/0x42d commit: a1247d06d0 ("locking/static_key: Fix false positive warnings on concurrent dec/inc") 46ad0840b1 ("locking/rwsem: Remove arch specific rwsem files") a1247d06d01045d7 46ad0840b1584b92b5ff2cc3ed0 ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :5 40% 2:6 dmesg.WARNING:at#for_ip_swapgs_restore_regs_and_return_to_usermode/0x 1:5 8% 2:6 perf-profile.calltrace.cycles-pp.error_entry %stddev %change %stddev \ | \ 319.20 +4.5% 333.70 reaim.child_systime 228.14 +1.2% 230.79 reaim.child_utime 50164 -3.4% 48470 reaim.jobs_per_min 501.65 -3.4% 484.70 reaim.jobs_per_min_child 51181 -2.4% 49944 reaim.max_jobs_per_min 11.96 +3.5% 12.38 reaim.parent_time 307.80 -1.7% 302.61 reaim.time.elapsed_time 307.80 -1.7% 302.61 reaim.time.elapsed_time.max 21833132 -4.8% 20791331 reaim.time.involuntary_context_switches 7.594e+08 -4.4% 7.263e+08 reaim.time.minor_page_faults 5038 -3.4% 4865 reaim.time.user_time 220000 -4.5% 210000 reaim.workload 14617 ± 2% +10.3% 16128 ± 3% meminfo.PageTables 0.03 ± 11% -0.0 0.02 ± 14% mpstat.cpu.all.soft% 320607 +2.6% 328953 vmstat.system.cs 15491 -86.2% 2133 ±134% numa-numastat.node0.other_node 228.33 ± 5% +5855.5% 13598 ± 21% numa-numastat.node1.other_node 108917 ± 4% -7.8% 100423 ± 3% softirqs.CPU11.TIMER 113369 -8.1% 104175 ± 5% softirqs.CPU40.TIMER 8966761 ± 5% +10.7% 9926924 ± 4% cpuidle.C1.usage 964538 ± 7% +88.9% 1821601 ± 11% cpuidle.POLL.time 803275 ± 10% +118.2% 1752897 ± 13% cpuidle.POLL.usage 8957861 ± 5% +10.8% 9923511 ± 4% turbostat.C1 0.43 ± 69% -0.4 0.00 turbostat.PKG_% 0.02 ±141% +660.0% 0.13 ± 65% turbostat.Pkg%pc3 0.34 ± 62% -0.3 0.00 turbostat.RAM_% 789.33 ± 3% -21.6% 618.67 ± 9% slabinfo.kmalloc-rcl-128.active_objs 789.33 ± 3% -21.6% 618.67 ± 9% slabinfo.kmalloc-rcl-128.num_objs 1366 -10.2% 1227 ± 5% slabinfo.pool_workqueue.active_objs 1367 -10.0% 1230 ± 5% slabinfo.pool_workqueue.num_objs 341.33 ± 8% +25.0% 426.67 ± 7% slabinfo.skbuff_fclone_cache.active_objs 341.33 ± 8% +25.0% 426.67 ± 7% slabinfo.skbuff_fclone_cache.num_objs 153786 +9.3% 168087 numa-vmstat.node0.nr_file_pages 2967 ± 30% +61.5% 4793 ± 5% numa-vmstat.node0.nr_inactive_anon 3513 ± 15% +30.3% 4578 ± 2% numa-vmstat.node0.nr_mapped 3349 ± 26% +382.3% 16155 ± 2% numa-vmstat.node0.nr_shmem 6987 ± 10% +65.6% 11569 ± 3% numa-vmstat.node0.nr_slab_reclaimable 2967 ± 30% +61.5% 4793 ± 5% numa-vmstat.node0.nr_zone_inactive_anon 25044 ± 54% -90.7% 2340 ±121% numa-vmstat.node0.numa_other 655.67 ± 71% +62.0% 1062 numa-vmstat.node1.nr_active_file 169454 -8.4% 155176 numa-vmstat.node1.nr_file_pages 2152 ± 41% -82.8% 369.33 ± 59% numa-vmstat.node1.nr_inactive_anon 3903 ± 14% -29.0% 2770 ± 2% numa-vmstat.node1.nr_mapped 13327 ± 5% -95.1% 652.33 ± 35% numa-vmstat.node1.nr_shmem 11241 ± 6% -46.1% 6064 ± 6% numa-vmstat.node1.nr_slab_reclaimable 655.67 ± 71% +62.0% 1062 numa-vmstat.node1.nr_zone_active_file 2152 ± 41% -82.8% 369.33 ± 59% numa-vmstat.node1.nr_zone_inactive_anon 79276 -2.1% 77572 proc-vmstat.nr_active_anon 66149 -2.9% 64243 proc-vmstat.nr_anon_pages 7467 -1.6% 7346 proc-vmstat.nr_mapped 3756 ± 2% +5.3% 3956 proc-vmstat.nr_page_table_pages 18126 -3.1% 17561 proc-vmstat.nr_slab_reclaimable 79276 -2.1% 77572 proc-vmstat.nr_zone_active_anon 8473 +8.1% 9162 ± 7% proc-vmstat.numa_hint_faults 7.766e+08 -3.9% 7.459e+08 proc-vmstat.numa_hit 7.765e+08 -3.9% 7.459e+08 proc-vmstat.numa_local 984.00 ± 74% +885.9% 9701 ± 97% proc-vmstat.numa_pages_migrated 38689 ± 39% +47.3% 56992 ± 12% proc-vmstat.numa_pte_updates 8.078e+08 -4.0% 7.753e+08 proc-vmstat.pgalloc_normal 7.608e+08 -4.4% 7.276e+08 proc-vmstat.pgfault 8.077e+08 -4.0% 7.752e+08 proc-vmstat.pgfree 984.00 ± 74% +885.9% 9701 ± 97% proc-vmstat.pgmigrate_success 615148 +9.3% 672325 numa-meminfo.node0.FilePages 12293 ± 25% +55.2% 19080 ± 5% numa-meminfo.node0.Inactive 11872 ± 30% +60.7% 19080 ± 5% numa-meminfo.node0.Inactive(anon) 27949 ± 10% +64.6% 46006 ± 3% numa-meminfo.node0.KReclaimable 14085 ± 15% +28.0% 18031 numa-meminfo.node0.Mapped 27949 ± 10% +64.6% 46006 ± 3% numa-meminfo.node0.SReclaimable 13401 ± 26% +382.0% 64597 ± 2% numa-meminfo.node0.Shmem 104587 ± 4% +14.0% 119233 ± 2% numa-meminfo.node0.Slab 2624 ± 71% +61.9% 4249 numa-meminfo.node1.Active(file) 677803 -8.4% 620707 numa-meminfo.node1.FilePages 9431 ± 32% -72.2% 2619 ± 33% numa-meminfo.node1.Inactive 8710 ± 41% -83.0% 1479 ± 59% numa-meminfo.node1.Inactive(anon) 44608 ± 4% -45.6% 24259 ± 6% numa-meminfo.node1.KReclaimable 15357 ± 14% -28.9% 10924 numa-meminfo.node1.Mapped 44608 ± 4% -45.6% 24259 ± 6% numa-meminfo.node1.SReclaimable 53293 ± 5% -95.1% 2611 ± 35% numa-meminfo.node1.Shmem 109835 ± 4% -16.5% 91708 ± 2% numa-meminfo.node1.Slab 198438 ± 19% -48.3% 102613 ± 29% sched_debug.cfs_rq:/.MIN_vruntime.avg 872601 ± 15% -44.0% 488425 ± 20% sched_debug.cfs_rq:/.MIN_vruntime.stddev 58877 ± 4% -32.5% 39716 ± 12% sched_debug.cfs_rq:/.load.avg 884652 ± 13% -36.3% 563479 sched_debug.cfs_rq:/.load.max 170539 ± 10% -44.5% 94726 ± 11% sched_debug.cfs_rq:/.load.stddev 198438 ± 19% -48.3% 102613 ± 29% sched_debug.cfs_rq:/.max_vruntime.avg 872601 ± 15% -44.0% 488425 ± 20% sched_debug.cfs_rq:/.max_vruntime.stddev 98.43 ± 20% +44.2% 141.96 ± 17% sched_debug.cfs_rq:/.removed.load_avg.avg 4591 ± 20% +42.7% 6553 ± 17% sched_debug.cfs_rq:/.removed.runnable_sum.avg 20.87 ± 11% +50.0% 31.30 ± 14% sched_debug.cfs_rq:/.removed.util_avg.avg 67.81 ± 5% +19.5% 81.04 ± 11% sched_debug.cfs_rq:/.removed.util_avg.stddev 40.35 ± 15% -23.4% 30.90 ± 10% sched_debug.cfs_rq:/.runnable_load_avg.avg 629.17 ± 11% -23.5% 481.17 ± 16% sched_debug.cfs_rq:/.runnable_load_avg.max 118.51 ± 16% -31.1% 81.69 ± 4% sched_debug.cfs_rq:/.runnable_load_avg.stddev 56059 ± 8% -37.8% 34866 ± 13% sched_debug.cfs_rq:/.runnable_weight.avg 876174 ± 14% -37.1% 551504 sched_debug.cfs_rq:/.runnable_weight.max 171272 ± 11% -45.1% 94102 ± 11% sched_debug.cfs_rq:/.runnable_weight.stddev 31227 ± 19% -32.2% 21174 ± 32% sched_debug.cfs_rq:/.spread0.avg 1223 ± 4% +16.5% 1425 ± 3% sched_debug.cfs_rq:/.util_avg.max 213.82 ± 2% +11.2% 237.75 sched_debug.cfs_rq:/.util_avg.stddev 124.17 ± 4% +12.4% 139.59 ± 4% sched_debug.cfs_rq:/.util_est_enqueued.stddev 219522 ± 24% -23.3% 168384 ± 18% sched_debug.cpu.avg_idle.avg 11161 ± 7% -26.2% 8235 ± 16% sched_debug.cpu.avg_idle.min 451.78 ± 7% -15.1% 383.78 ± 7% sched_debug.cpu.cpu_load[1].max 85.00 ± 10% -21.7% 66.56 ± 10% sched_debug.cpu.cpu_load[1].stddev 277.61 ± 10% -17.9% 227.94 ± 9% sched_debug.cpu.cpu_load[2].max 56.14 ± 11% -18.5% 45.73 ± 9% sched_debug.cpu.cpu_load[2].stddev 52735 ± 8% +32.7% 69975 ± 8% sched_debug.cpu.curr->pid.avg 77254 ± 6% +23.7% 95588 ± 6% sched_debug.cpu.curr->pid.max 102587 ± 23% +28.5% 131794 ± 7% sched_debug.cpu.load.stddev 2153 ± 8% -20.9% 1703 ± 23% sched_debug.cpu.nr_load_updates.stddev 12689 ± 7% -11.4% 11237 ± 3% sched_debug.cpu.nr_switches.stddev 0.05 ± 48% +126.8% 0.11 ± 24% sched_debug.cpu.nr_uninterruptible.avg -333.33 +32.1% -440.17 sched_debug.cpu.nr_uninterruptible.min 111.56 ± 2% +18.4% 132.09 sched_debug.cpu.nr_uninterruptible.stddev 8.47e+09 +2.8% 8.707e+09 perf-stat.i.branch-instructions 1.006e+08 -2.5% 98077383 perf-stat.i.branch-misses 1.205e+08 -2.5% 1.174e+08 perf-stat.i.cache-misses 1.034e+09 -2.5% 1.008e+09 perf-stat.i.cache-references 323541 +2.8% 332474 perf-stat.i.context-switches 25454 +5.5% 26847 ± 2% perf-stat.i.cpu-migrations 1.217e+10 +3.9% 1.264e+10 perf-stat.i.dTLB-loads 5.319e+09 -2.7% 5.174e+09 perf-stat.i.dTLB-stores 29193114 -2.4% 28497000 perf-stat.i.iTLB-load-misses 4.178e+10 +3.4% 4.319e+10 perf-stat.i.instructions 1424 +4.5% 1487 perf-stat.i.instructions-per-iTLB-miss 2472806 -2.9% 2402150 perf-stat.i.minor-faults 78070119 -2.8% 75920079 perf-stat.i.node-load-misses 82100776 -2.7% 79853820 perf-stat.i.node-loads 2472804 -2.9% 2402149 perf-stat.i.page-faults 24.75 -5.7% 23.35 perf-stat.overall.MPKI 1.19 -0.1 1.13 perf-stat.overall.branch-miss-rate% 2.85 -3.1% 2.77 perf-stat.overall.cpi 989.57 +2.8% 1017 perf-stat.overall.cycles-between-cache-misses 1431 +5.9% 1515 perf-stat.overall.instructions-per-iTLB-miss 0.35 +3.2% 0.36 perf-stat.overall.ipc 58325624 +6.7% 62258667 perf-stat.overall.path-length 8.442e+09 +2.8% 8.678e+09 perf-stat.ps.branch-instructions 1.003e+08 -2.5% 97753949 perf-stat.ps.branch-misses 1.201e+08 -2.5% 1.171e+08 perf-stat.ps.cache-misses 1.031e+09 -2.5% 1.005e+09 perf-stat.ps.cache-references 322473 +2.8% 331365 perf-stat.ps.context-switches 25370 +5.5% 26758 ± 2% perf-stat.ps.cpu-migrations 1.213e+10 +3.9% 1.26e+10 perf-stat.ps.dTLB-loads 5.302e+09 -2.7% 5.157e+09 perf-stat.ps.dTLB-stores 29096816 -2.4% 28402005 perf-stat.ps.iTLB-load-misses 4.165e+10 +3.4% 4.305e+10 perf-stat.ps.instructions 2464656 -2.9% 2394142 perf-stat.ps.minor-faults 77812636 -2.8% 75666866 perf-stat.ps.node-load-misses 81830010 -2.7% 79587500 perf-stat.ps.node-loads 2464651 -2.9% 2394141 perf-stat.ps.page-faults 244.00 ± 2% +125.7% 550.67 ± 36% interrupts.35:IR-PCI-MSI.2621441-edge.eth0-TxRx-0 184.67 ± 6% -15.2% 156.67 interrupts.36:IR-PCI-MSI.2621442-edge.eth0-TxRx-1 358.33 ± 74% -56.3% 156.67 interrupts.37:IR-PCI-MSI.2621443-edge.eth0-TxRx-2 201599 -1.2% 199147 interrupts.CAL:Function_call_interrupts 283.00 ± 9% -18.4% 231.00 ± 7% interrupts.CPU1.TLB:TLB_shootdowns 1163 ±131% +473.3% 6671 interrupts.CPU10.NMI:Non-maskable_interrupts 1163 ±131% +473.3% 6671 interrupts.CPU10.PMI:Performance_monitoring_interrupts 345.33 ± 8% -34.8% 225.00 ± 16% interrupts.CPU11.TLB:TLB_shootdowns 4375 ± 2% -7.2% 4060 ± 5% interrupts.CPU12.CAL:Function_call_interrupts 4277 ± 3% -9.1% 3888 ± 3% interrupts.CPU13.CAL:Function_call_interrupts 331.00 ± 5% -23.0% 255.00 ± 5% interrupts.CPU14.TLB:TLB_shootdowns 1115 ±141% +303.1% 4496 ± 35% interrupts.CPU16.NMI:Non-maskable_interrupts 1115 ±141% +303.1% 4496 ± 35% interrupts.CPU16.PMI:Performance_monitoring_interrupts 1136 ±137% +197.0% 3375 interrupts.CPU18.NMI:Non-maskable_interrupts 1136 ±137% +197.0% 3375 interrupts.CPU18.PMI:Performance_monitoring_interrupts 247.67 ± 15% +21.0% 299.67 ± 7% interrupts.CPU19.TLB:TLB_shootdowns 245.00 ± 18% +26.3% 309.33 ± 7% interrupts.CPU20.TLB:TLB_shootdowns 270.67 ± 27% +39.5% 377.67 ± 9% interrupts.CPU21.TLB:TLB_shootdowns 99.00 ± 53% +3296.0% 3362 interrupts.CPU22.NMI:Non-maskable_interrupts 99.00 ± 53% +3296.0% 3362 interrupts.CPU22.PMI:Performance_monitoring_interrupts 244.00 ± 2% +125.7% 550.67 ± 36% interrupts.CPU24.35:IR-PCI-MSI.2621441-edge.eth0-TxRx-0 184.67 ± 6% -15.2% 156.67 interrupts.CPU25.36:IR-PCI-MSI.2621442-edge.eth0-TxRx-1 358.33 ± 74% -56.3% 156.67 interrupts.CPU26.37:IR-PCI-MSI.2621443-edge.eth0-TxRx-2 2.00 ± 81% +57150.0% 1145 ±138% interrupts.CPU26.NMI:Non-maskable_interrupts 2.00 ± 81% +57150.0% 1145 ±138% interrupts.CPU26.PMI:Performance_monitoring_interrupts 310.00 ± 5% -28.0% 223.33 ± 5% interrupts.CPU27.TLB:TLB_shootdowns 3360 -66.9% 1113 ±140% interrupts.CPU29.NMI:Non-maskable_interrupts 3360 -66.9% 1113 ±140% interrupts.CPU29.PMI:Performance_monitoring_interrupts 1112 ±141% +402.7% 5592 ± 28% interrupts.CPU3.NMI:Non-maskable_interrupts 1112 ±141% +402.7% 5592 ± 28% interrupts.CPU3.PMI:Performance_monitoring_interrupts 213.67 ± 14% +21.8% 260.33 ± 17% interrupts.CPU31.TLB:TLB_shootdowns 3356 ± 80% -99.5% 17.00 ± 84% interrupts.CPU34.NMI:Non-maskable_interrupts 3356 ± 80% -99.5% 17.00 ± 84% interrupts.CPU34.PMI:Performance_monitoring_interrupts 1123 ±138% +401.6% 5633 ± 28% interrupts.CPU37.NMI:Non-maskable_interrupts 1123 ±138% +401.6% 5633 ± 28% interrupts.CPU37.PMI:Performance_monitoring_interrupts 1143 ±136% +292.3% 4484 ± 34% interrupts.CPU41.NMI:Non-maskable_interrupts 1143 ±136% +292.3% 4484 ± 34% interrupts.CPU41.PMI:Performance_monitoring_interrupts 230.33 ± 9% +25.5% 289.00 ± 12% interrupts.CPU42.TLB:TLB_shootdowns 1134 ±137% +209.6% 3511 ± 71% interrupts.CPU43.NMI:Non-maskable_interrupts 1134 ±137% +209.6% 3511 ± 71% interrupts.CPU43.PMI:Performance_monitoring_interrupts 319.00 ± 7% -33.4% 212.33 ± 5% interrupts.CPU43.TLB:TLB_shootdowns 1146 ±133% +289.2% 4462 ± 35% interrupts.CPU44.NMI:Non-maskable_interrupts 1146 ±133% +289.2% 4462 ± 35% interrupts.CPU44.PMI:Performance_monitoring_interrupts 633.00 ±140% +604.5% 4459 ± 34% interrupts.CPU5.NMI:Non-maskable_interrupts 633.00 ±140% +604.5% 4459 ± 34% interrupts.CPU5.PMI:Performance_monitoring_interrupts 285.33 ± 4% -31.2% 196.33 ± 26% interrupts.CPU6.TLB:TLB_shootdowns 308.00 ± 6% -18.4% 251.33 ± 20% interrupts.CPU9.TLB:TLB_shootdowns 108747 ± 5% +32.4% 144006 ± 13% interrupts.NMI:Non-maskable_interrupts 108747 ± 5% +32.4% 144006 ± 13% interrupts.PMI:Performance_monitoring_interrupts 25.95 ± 4% -19.2 6.78 ± 11% perf-profile.calltrace.cycles-pp.__libc_fork 23.30 ± 5% -17.2 6.15 ± 11% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__libc_fork 23.30 ± 5% -17.2 6.15 ± 11% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_fork 23.29 ± 5% -17.1 6.14 ± 11% perf-profile.calltrace.cycles-pp._do_fork.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_fork 22.32 ± 4% -16.4 5.91 ± 11% perf-profile.calltrace.cycles-pp.copy_process._do_fork.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_fork 5.57 ± 3% -5.6 0.00 perf-profile.calltrace.cycles-pp.call_rwsem_down_write_failed.down_write.anon_vma_fork.copy_process._do_fork 5.55 ± 3% -5.5 0.00 perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.anon_vma_fork.copy_process 5.34 ± 2% -5.3 0.00 perf-profile.calltrace.cycles-pp.call_rwsem_down_write_failed.down_write.unlink_anon_vmas.free_pgtables.exit_mmap 5.33 ± 2% -5.3 0.00 perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.unlink_anon_vmas.free_pgtables 4.40 ± 10% -3.4 0.99 ± 9% perf-profile.calltrace.cycles-pp.wait 3.97 ± 10% -3.1 0.88 ± 9% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.wait 3.95 ± 10% -3.1 0.88 ± 9% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.wait 3.93 ± 10% -3.0 0.88 ± 9% perf-profile.calltrace.cycles-pp.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe.wait 3.93 ± 10% -3.0 0.88 ± 9% perf-profile.calltrace.cycles-pp.kernel_wait4.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe.wait 2.52 ± 9% -0.7 1.84 perf-profile.calltrace.cycles-pp.queued_read_lock_slowpath.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64 2.83 -0.6 2.26 ± 13% perf-profile.calltrace.cycles-pp.anon_vma_interval_tree_insert.anon_vma_clone.anon_vma_fork.copy_process._do_fork 7.70 ± 2% -0.5 7.15 ± 3% perf-profile.calltrace.cycles-pp.tlb_finish_mmu.exit_mmap.mmput.do_exit.do_group_exit 7.69 ± 2% -0.5 7.14 ± 3% perf-profile.calltrace.cycles-pp.arch_tlb_finish_mmu.tlb_finish_mmu.exit_mmap.mmput.do_exit 7.62 ± 2% -0.5 7.09 ± 3% perf-profile.calltrace.cycles-pp.tlb_flush_mmu_free.arch_tlb_finish_mmu.tlb_finish_mmu.exit_mmap.mmput 5.01 ± 4% -0.5 4.48 ± 2% perf-profile.calltrace.cycles-pp.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe 8.09 ± 3% -0.5 7.62 ± 3% perf-profile.calltrace.cycles-pp.unmap_vmas.exit_mmap.mmput.do_exit.do_group_exit 6.17 ± 2% -0.4 5.74 ± 3% perf-profile.calltrace.cycles-pp.release_pages.tlb_flush_mmu_free.arch_tlb_finish_mmu.tlb_finish_mmu.exit_mmap 1.83 ± 2% -0.4 1.43 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath.queued_read_lock_slowpath.do_wait.kernel_wait4.__do_sys_wait4 0.61 ± 3% -0.2 0.36 ± 70% perf-profile.calltrace.cycles-pp.lru_add_drain_cpu.lru_add_drain.exit_mmap.mmput.do_exit 0.61 ± 3% -0.2 0.37 ± 70% perf-profile.calltrace.cycles-pp.lru_add_drain.exit_mmap.mmput.do_exit.do_group_exit 0.59 ± 3% -0.2 0.36 ± 70% perf-profile.calltrace.cycles-pp.pagevec_lru_move_fn.lru_add_drain_cpu.lru_add_drain.exit_mmap.mmput 4.11 ± 2% -0.2 3.92 perf-profile.calltrace.cycles-pp.copy_page_range.copy_process._do_fork.do_syscall_64.entry_SYSCALL_64_after_hwframe 3.94 ± 2% -0.2 3.75 perf-profile.calltrace.cycles-pp.copy_p4d_range.copy_page_range.copy_process._do_fork.do_syscall_64 1.01 ± 8% -0.1 0.86 ± 3% perf-profile.calltrace.cycles-pp.queued_write_lock_slowpath.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64 0.79 ± 9% -0.1 0.66 ± 5% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath.queued_write_lock_slowpath.do_exit.do_group_exit.__x64_sys_exit_group 1.44 ± 4% -0.1 1.33 perf-profile.calltrace.cycles-pp.free_pages_and_swap_cache.tlb_flush_mmu_free.arch_tlb_finish_mmu.tlb_finish_mmu.exit_mmap 0.76 ± 2% -0.1 0.71 perf-profile.calltrace.cycles-pp.remove_vma.exit_mmap.mmput.do_exit.do_group_exit 1.01 -0.0 0.97 ± 2% perf-profile.calltrace.cycles-pp.__slab_free.kmem_cache_free.unlink_anon_vmas.free_pgtables.exit_mmap 1.10 -0.0 1.07 perf-profile.calltrace.cycles-pp.kmem_cache_free.unlink_anon_vmas.free_pgtables.exit_mmap.mmput 0.60 +0.0 0.65 ± 3% perf-profile.calltrace.cycles-pp.alloc_pages_vma.wp_page_copy.do_wp_page.__handle_mm_fault.handle_mm_fault 0.65 ± 2% +0.1 0.71 ± 6% perf-profile.calltrace.cycles-pp.swapgs_restore_regs_and_return_to_usermode 3.57 ± 5% +0.4 3.93 ± 5% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary 4.02 ± 6% +0.4 4.47 ± 6% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64 4.65 ± 3% +0.5 5.10 ± 4% perf-profile.calltrace.cycles-pp.secondary_startup_64 4.50 ± 5% +0.5 5.01 ± 5% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64 4.51 ± 6% +0.5 5.02 ± 5% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64 4.50 ± 5% +0.5 5.02 ± 5% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64 0.00 +0.5 0.52 perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.alloc_pages_vma.wp_page_copy.do_wp_page.__handle_mm_fault 0.00 +0.6 0.56 ± 2% perf-profile.calltrace.cycles-pp.page_fault.__put_user_4.schedule_tail.ret_from_fork 0.00 +0.6 0.56 ± 2% perf-profile.calltrace.cycles-pp.__put_user_4.schedule_tail.ret_from_fork 1.13 ± 8% +0.6 1.69 perf-profile.calltrace.cycles-pp.ret_from_fork 0.00 +0.7 0.72 ± 3% perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_down_write_failed.down_write.anon_vma_clone.anon_vma_fork 0.00 +0.8 0.83 perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_down_write_failed.down_write.anon_vma_fork.copy_process 0.00 +0.8 0.84 ± 2% perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_down_write_failed.down_write.unlink_anon_vmas.free_pgtables 0.00 +0.9 0.86 perf-profile.calltrace.cycles-pp.schedule_tail.ret_from_fork 9.74 ± 2% +0.9 10.68 ± 5% perf-profile.calltrace.cycles-pp.anon_vma_clone.anon_vma_fork.copy_process._do_fork.do_syscall_64 0.00 +0.9 0.95 perf-profile.calltrace.cycles-pp.wake_up_new_task._do_fork.do_syscall_64.entry_SYSCALL_64_after_hwframe 5.78 ± 3% +1.0 6.81 ± 9% perf-profile.calltrace.cycles-pp.down_write.anon_vma_fork.copy_process._do_fork.do_syscall_64 5.08 ± 3% +1.2 6.33 ± 10% perf-profile.calltrace.cycles-pp.down_write.anon_vma_clone.anon_vma_fork.copy_process._do_fork 5.69 ± 2% +1.3 7.00 ± 10% perf-profile.calltrace.cycles-pp.down_write.unlink_anon_vmas.free_pgtables.exit_mmap.mmput 35.70 +1.5 37.20 perf-profile.calltrace.cycles-pp.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64.entry_SYSCALL_64_after_hwframe 35.71 +1.5 37.22 perf-profile.calltrace.cycles-pp.do_group_exit.__x64_sys_exit_group.do_syscall_64.entry_SYSCALL_64_after_hwframe 35.71 +1.5 37.22 perf-profile.calltrace.cycles-pp.__x64_sys_exit_group.do_syscall_64.entry_SYSCALL_64_after_hwframe 32.20 +1.7 33.86 ± 2% perf-profile.calltrace.cycles-pp.mmput.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64 32.13 +1.7 33.79 ± 2% perf-profile.calltrace.cycles-pp.exit_mmap.mmput.do_exit.do_group_exit.__x64_sys_exit_group 2.96 ± 8% +1.7 4.65 ± 13% perf-profile.calltrace.cycles-pp.down_write.__put_anon_vma.unlink_anon_vmas.free_pgtables.exit_mmap 3.74 ± 8% +1.7 5.45 ± 11% perf-profile.calltrace.cycles-pp.__put_anon_vma.unlink_anon_vmas.free_pgtables.exit_mmap.mmput 16.96 ± 2% +1.9 18.89 ± 6% perf-profile.calltrace.cycles-pp.anon_vma_fork.copy_process._do_fork.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.13 ± 18% +2.5 3.64 ± 2% perf-profile.calltrace.cycles-pp.kernel_wait4.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.13 ± 18% +2.5 3.65 perf-profile.calltrace.cycles-pp.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe 14.70 ± 3% +2.8 17.53 ± 6% perf-profile.calltrace.cycles-pp.free_pgtables.exit_mmap.mmput.do_exit.do_group_exit 12.95 ± 3% +3.0 15.93 ± 8% perf-profile.calltrace.cycles-pp.unlink_anon_vmas.free_pgtables.exit_mmap.mmput.do_exit 0.00 +3.8 3.83 ± 15% perf-profile.calltrace.cycles-pp.osq_lock.rwsem_down_write_failed.down_write.__put_anon_vma.unlink_anon_vmas 0.00 +4.6 4.59 ± 13% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.down_write.__put_anon_vma.unlink_anon_vmas.free_pgtables 0.00 +4.6 4.65 ± 13% perf-profile.calltrace.cycles-pp.osq_lock.rwsem_down_write_failed.down_write.anon_vma_clone.anon_vma_fork 0.00 +5.0 5.02 ± 11% perf-profile.calltrace.cycles-pp.osq_lock.rwsem_down_write_failed.down_write.anon_vma_fork.copy_process 0.00 +5.2 5.21 ± 13% perf-profile.calltrace.cycles-pp.osq_lock.rwsem_down_write_failed.down_write.unlink_anon_vmas.free_pgtables 0.00 +6.1 6.07 ± 10% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.down_write.anon_vma_clone.anon_vma_fork.copy_process 0.00 +6.6 6.60 ± 9% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.down_write.anon_vma_fork.copy_process._do_fork 0.00 +6.6 6.62 ± 11% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.down_write.unlink_anon_vmas.free_pgtables.exit_mmap 6.72 ± 19% +17.5 24.22 ± 4% perf-profile.calltrace.cycles-pp.copy_process._do_fork.do_syscall_64.entry_SYSCALL_64_after_hwframe 7.01 ± 19% +18.2 25.22 ± 4% perf-profile.calltrace.cycles-pp._do_fork.do_syscall_64.entry_SYSCALL_64_after_hwframe 44.08 ± 3% +22.8 66.84 ± 2% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe 44.08 ± 3% +22.8 66.86 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe reaim.time.minor_page_faults 8e+08 +-+-----------------------------------------------------------------+ | OO + O O.O+ O O O +O O OO + O +.+ + + + ++ +.| 7e+08 +-+: : : : : : : :: : : : : : : : : :: : | 6e+08 +-+: : : : : : : :: : : : : : : : : :: : | | : : : : : : : :: : : : : : : : : :: : | 5e+08 +-+:: :: :: : : : : :: : : :: :: : : : : :: : : :: : : : | | :: :: :: : : : : :: : : :: :: : : : : :: : : :: : : : | 4e+08 +-+:: :: :: : : : : :: : : :: :: : : : : :: : : :: : : : | | : :: : : :: : : :: : : : : :: :: :: : : :: :: : : :: | 3e+08 +-+ :: : : :: : : :: : : : : :: :: :: : : :: :: : : :: | 2e+08 +-+ :: : : :: : : :: : : : : :: :: :: : : :: :: : : :: | | : : : : :: : : : : : : : :: : : : : | 1e+08 +-+ : : : :: : : : : : : : :: : : : : | | : : : : :: : : : : : : : :: : : : : | 0 O-+--OO-O--O----O--O---O--O-O---O-O----OO---------------------------+ reaim.time.involuntary_context_switches 2.5e+07 +-+---------------------------------------------------------------+ | | | OO + O OO.+O O O +O O OO + O +.+ + + + ++ +.| 2e+07 +-+: : : : : : : :: : : : : : : : : :: : | | : : : : : : : :: : : : : : : : : :: : | | :: :: :: : : :: : : : : : : : : :: :: : : : : | 1.5e+07 +-+:: :: :: : : :: :: : : :: :: :: : : :: :: :: : : : | | :: :: :: : : :: :: : : :: :: :: : : :: :: :: : : : | 1e+07 +-+:: :: :: : : :: : :: : : :: :: :: : :: :: : :: : : | | : :: :: : : : : : : :: : : :: :: :: : : :: : : :: :: | | : :: :: : : : : : : :: : : :: :: :: : : :: : : :: :: | 5e+06 +-+ : : :: : : :: :: : : :: :: :: : : : :: :: : | | : : : : : : : : : : : : : : : : : : : | | : : : : : : : : : : : : : : : : : : : | 0 O-+--OO-O--O----O--O--O--O-O---O-O----OO--------------------------+ reaim.parent_time 14 +-+--------------------------------------------------------------------+ | OO O O | 12 +-OO + O ++.+ O O O ++ O + O + O +.+ + + + +.+ +.| | : : : : : : : :: : : : : : : : : : : : | 10 +-+: : : : : : : :: : : : : : : : : : : : | | :: : :: : : :: :: : : :: : :: : : :: :: :: : : : | 8 +-+:: :: : : : : : : :: : : :: :: : : : : : : :: : : : : : | | :: :: : : : : : : :: : : :: :: : : : : : : :: : : : : : | 6 +-+:: : :: : : : : : :: : : :: : :: : : : : : :: : : : : : | | : : : :: : : : : :: : : : : : : :: :: : : :: : : :: :: | 4 +-+ : : :: : : : : :: : : : : : : :: :: : : :: : : :: :: | | : :: :: :: : : : :: : : :: :: : : : : :: : : | 2 +-+ : : : :: : : : : : : : :: : : : : | | : : : : :: : : : : : : : :: : : : : | 0 O-+--O-OO---O----O--O---O--O-O----O-O----OO----------------------------+ reaim.child_systime 350 +-+----------O-O---------O----O-O----O--------------------------------+ | OO + O +.+.+O O + +.+ +O + O ++ + + + +.+ +.| 300 +-+: : : : : : : : : : : : :: : : : : : : | | : : : : : : : : : : : : :: : : : : : : | 250 +-+: : : : : : : : : : : : :: : : : : : : | | :: :: : : : : :: : : : : :: : : :: : : :: :: : : : : : | 200 +-+:: :: : : : : :: : : : : :: : : :: : : :: :: : : : : : | | :: :: : : : : :: : : : : :: : : :: : : :: :: : : : : : | 150 +-+ : : :: :: : : :: :: : : :: :: : : : : : : :: :: :: | | : : : :: :: : : :: :: : : :: :: : : : : : : :: :: :: | 100 +-+ : : :: :: : : :: :: : : :: :: : : : : : : :: :: :: | | : : : : : : : : : : : : : : : : : : : | 50 +-+ : : : : : : : : : : : : : : : : : : | | : : : : : : : : : : : : : : : : : : : | 0 O-+--O-OO---O----O--O--O---OO----O-O----O-O---------------------------+ reaim.jobs_per_min 60000 +-+-----------------------------------------------------------------+ | | 50000 +-++ + + +.++ + + ++ + + + +.+ + + + ++ +.| | OO : O O O: O O O :O O OO : O : : : : : :: : | | : : : : : : : :: : : : : : : : : :: : | 40000 +-+:: :: : : : :: :: : : : : :: : : : :: :: : : : | | :: :: :: : : : : :: : : :: :: : : : : :: : : :: : : : | 30000 +-+:: :: :: : : : : :: : : :: :: : : : : :: : : :: : : : | | :: :: : :: : : : :: : : : :: :: : : : : :: : :: : : : | 20000 +-+ :: : : :: : : :: : : : : :: :: :: : : :: :: : : :: | | : :: : : :: : : :: : : : : :: :: :: : : :: :: : : :: | | : : :: :: : : : :: : : :: :: : : : :: : :: : | 10000 +-+ : : : :: : : : : : : : :: : : : : | | : : : : :: : : : : : : : :: : : : : | 0 O-+--OO-O--O----O--O---O--O-O---O-O----OO---------------------------+ reaim.jobs_per_min_child 600 +-+-------------------------------------------------------------------+ | | 500 +-++ + + +.+.+ + + +.+ + + + ++ + + + +.+ +.| | OO : O O O :O O O : O O OO : O :: : : : : : : | | : : : : : : : : : : : : :: : : : : : : | 400 +-+:: : :: : : : :: : : : :: :: : : :: : :: : : : | | :: :: : : : : :: : : : : :: : : :: : : :: :: : : : : : | 300 +-+:: :: : : : : :: : : : : :: : : :: : : :: :: : : : : : | | :: : :: : : : : :: : : : : :: : :: : : :: : :: : : : : | 200 +-+ : : :: :: : : :: :: : : :: :: : : : : : : :: :: :: | | : : : :: :: : : :: :: : : :: :: : : : : : : :: :: :: | | : :: :: : : : :: : : : :: : :: : : :: :: : : | 100 +-+ : : : : : : : : : : : : : : : : : : | | : : : : : : : : : : : : : : : : : : : | 0 O-+--O-OO---O----O--O--O---OO----O-O----O-O---------------------------+ reaim.workload 250000 +-+----------------------------------------------------------------+ | | | OO + O OO.+ O O O +.OO O O+ O ++ + + + ++ +.| 200000 +-+: : : : : : : : : : : : :: : : : :: : | | : : : : : : : : : : : : :: : : : :: : | | :: :: : : : : :: : : :: :: :: : : :: :: :: : : : | 150000 +-+:: :: :: : : :: : : : : :: :: :: : : : : :: :: : : : | | :: :: :: : : :: : : : : :: :: :: : : : : :: :: : : : | 100000 +-+:: :: : :: : : :: : : : :: :: :: : : : : :: :: : : : | | : :: : : :: : : :: :: : : :: :: : : : : :: :: : : :: | | : :: : : :: : : :: :: : : :: :: : : : : :: :: : : :: | 50000 +-+ : :: :: : : :: : : : : : :: : : : : :: : | | : : : : :: : : : : : : : :: : : : : | | : : : : :: : : : : : : : :: : : : : | 0 O-+--OO-O--O----O--O--O---OO----O-O---O-O--------------------------+ [*] bisect-good sample [O] bisect-bad sample Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Rong Chen

3 years, 4 months

1
0
0 / 0

[btrfs] c99d2765f3: aim7.jobs-per-min 4.5% improvement

by kernel test robot

Greeting, FYI, we noticed a 4.5% improvement of aim7.jobs-per-min due to commit: commit: c99d2765f3417c88a25835dd7394824d85dbb00e ("btrfs: use assertion helpers for spinning readers") https://github.com/kdave/btrfs-devel.git misc-next in testcase: aim7 on test machine: 72 threads Intel(R) Xeon(R) Gold 6139 CPU @ 2.30GHz with 128G memory with following parameters: disk: 1BRD_48G fs: btrfs test: disk_src load: 500 cpufreq_governor: performance test-description: AIM7 is a traditional UNIX system level benchmark suite which is used to test and measure the performance of multiuser system. test-url: https://sourceforge.net/projects/aimbench/files/aim-suite7/ Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= compiler/cpufreq_governor/disk/fs/kconfig/load/rootfs/tbox_group/test/testcase: gcc-7/performance/1BRD_48G/btrfs/x86_64-rhel-7.6/500/debian-x86_64-2018-04-03.cgz/lkp-skl-2sp7/disk_src/aim7 commit: 184175a6c7 ("btrfs: add assertion helpers for spinning readers") c99d2765f3 ("btrfs: use assertion helpers for spinning readers") 184175a6c7a0ca80 c99d2765f3417c88a25835dd739 ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :4 25% 1:4 dmesg.WARNING:at#for_ip_interrupt_entry/0x %stddev %change %stddev \ | \ 34171 +4.5% 35697 aim7.jobs-per-min 88.55 ± 2% -4.7% 84.37 aim7.time.elapsed_time 88.55 ± 2% -4.7% 84.37 aim7.time.elapsed_time.max 13048113 ± 3% +19.5% 15596179 ± 11% cpuidle.POLL.time 14584 ± 27% -18.0% 11954 ± 2% proc-vmstat.nr_dirtied 5.32 ± 3% +5.7% 5.62 ± 5% perf-stat.i.cpi 960.10 ± 4% +7.9% 1035 perf-stat.overall.cycles-between-cache-misses 24677 ± 4% -9.5% 22323 ± 4% softirqs.CPU0.RCU 24119 ± 6% -9.4% 21846 ± 5% softirqs.CPU15.RCU 25122 ± 4% -6.8% 23419 ± 3% softirqs.CPU40.RCU 24696 ± 5% -12.7% 21570 ± 7% softirqs.CPU5.RCU 23826 ± 9% -11.7% 21030 ± 3% softirqs.CPU61.RCU 188.75 ±110% -74.7% 47.75 ± 2% sched_debug.cfs_rq:/.runnable_load_avg.max 859.38 ± 5% +23.3% 1059 ± 15% sched_debug.cfs_rq:/.util_avg.max 3.88 ± 5% +6.9% 4.14 ± 6% sched_debug.cpu.cpu_load[4].avg 299741 ± 79% -80.7% 57737 ± 2% sched_debug.cpu.load.max 189753 ± 7% -13.8% 163598 ± 2% sched_debug.cpu.nr_switches.max 4433 ± 11% -21.8% 3468 ± 6% sched_debug.cpu.nr_switches.stddev 20.75 ± 9% -13.9% 17.88 ± 5% sched_debug.cpu.nr_uninterruptible.max 2591 ± 5% -13.2% 2249 ± 9% interrupts.CPU10.RES:Rescheduling_interrupts 2777 ± 5% -11.1% 2469 ± 9% interrupts.CPU17.RES:Rescheduling_interrupts 2902 ± 5% -13.5% 2511 ± 4% interrupts.CPU38.RES:Rescheduling_interrupts 2904 ± 5% -11.6% 2568 ± 5% interrupts.CPU45.RES:Rescheduling_interrupts 2945 ± 10% -13.6% 2544 ± 10% interrupts.CPU48.RES:Rescheduling_interrupts 2914 ± 4% -9.5% 2636 ± 8% interrupts.CPU51.RES:Rescheduling_interrupts 2734 ± 9% +11.6% 3050 ± 3% interrupts.CPU70.RES:Rescheduling_interrupts 2499 ± 4% -6.1% 2348 ± 6% interrupts.CPU71.NMI:Non-maskable_interrupts 2499 ± 4% -6.1% 2348 ± 6% interrupts.CPU71.PMI:Performance_monitoring_interrupts 3.52 ± 4% -0.5 3.06 ± 5% perf-profile.calltrace.cycles-pp.btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_inode.__btrfs_update_delayed_inode 0.67 ± 15% -0.4 0.28 ±100% perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_inode.__btrfs_update_delayed_inode.btrfs_async_run_delayed_root 1.54 ± 15% -0.3 1.27 ± 3% perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork 1.52 ± 15% -0.3 1.26 ± 3% perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork 1.51 ± 15% -0.3 1.25 ± 3% perf-profile.calltrace.cycles-pp.normal_work_helper.process_one_work.worker_thread.kthread.ret_from_fork 1.54 ± 15% -0.3 1.29 ± 3% perf-profile.calltrace.cycles-pp.ret_from_fork 1.54 ± 15% -0.3 1.29 ± 3% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork 1.50 ± 16% -0.3 1.25 ± 3% perf-profile.calltrace.cycles-pp.btrfs_async_run_delayed_root.normal_work_helper.process_one_work.worker_thread.kthread 0.76 ± 15% -0.2 0.58 ± 6% perf-profile.calltrace.cycles-pp.__btrfs_update_delayed_inode.btrfs_async_run_delayed_root.normal_work_helper.process_one_work.worker_thread 0.73 ± 15% -0.2 0.56 ± 7% perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_inode.__btrfs_update_delayed_inode.btrfs_async_run_delayed_root.normal_work_helper 0.73 ± 15% -0.2 0.56 ± 7% perf-profile.calltrace.cycles-pp.btrfs_lookup_inode.__btrfs_update_delayed_inode.btrfs_async_run_delayed_root.normal_work_helper.process_one_work 0.67 -0.0 0.64 ± 2% perf-profile.calltrace.cycles-pp.finish_wait.btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_del_orphan_item 0.61 ± 7% +0.1 0.68 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__wake_up_common_lock.btrfs_release_path.__btrfs_unlink_inode 0.62 ± 7% +0.1 0.70 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.btrfs_release_path.__btrfs_unlink_inode.btrfs_unlink_inode 0.68 ± 7% +0.1 0.77 ± 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__wake_up_common_lock.btrfs_release_path.__btrfs_update_delayed_inode 1.23 ± 3% +0.1 1.32 ± 3% perf-profile.calltrace.cycles-pp.btrfs_release_path.__btrfs_update_delayed_inode.btrfs_commit_inode_delayed_inode.btrfs_evict_inode.evict 0.70 ± 7% +0.1 0.79 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.btrfs_release_path.__btrfs_update_delayed_inode.btrfs_commit_inode_delayed_inode 0.73 ± 9% +0.1 0.86 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.btrfs_release_path.btrfs_free_path.btrfs_truncate_inode_items 1.07 ± 2% +0.1 1.20 ± 4% perf-profile.calltrace.cycles-pp.__wake_up_common_lock.btrfs_release_path.btrfs_free_path.btrfs_del_orphan_item.btrfs_evict_inode 1.22 ± 5% +0.1 1.37 ± 5% perf-profile.calltrace.cycles-pp.btrfs_release_path.btrfs_free_path.btrfs_truncate_inode_items.btrfs_evict_inode.evict 1.22 ± 5% +0.1 1.37 ± 5% perf-profile.calltrace.cycles-pp.btrfs_free_path.btrfs_truncate_inode_items.btrfs_evict_inode.evict.do_unlinkat 0.74 ± 5% +0.2 0.90 ± 5% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.btrfs_release_path.btrfs_free_path.btrfs_del_orphan_item 1.16 ± 3% +0.2 1.32 ± 4% perf-profile.calltrace.cycles-pp.btrfs_release_path.btrfs_free_path.btrfs_del_orphan_item.btrfs_evict_inode.evict 1.16 ± 3% +0.2 1.32 ± 4% perf-profile.calltrace.cycles-pp.btrfs_free_path.btrfs_del_orphan_item.btrfs_evict_inode.evict.do_unlinkat 1.44 ± 6% +0.3 1.72 ± 5% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__wake_up_common_lock.btrfs_release_path.btrfs_free_path 2.55 ± 8% +0.5 3.05 ± 4% perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.do_unlinkat 2.82 ± 8% +0.6 3.41 ± 4% perf-profile.calltrace.cycles-pp.call_rwsem_down_write_failed.down_write.do_unlinkat.do_syscall_64.entry_SYSCALL_64_after_hwframe 2.82 ± 8% +0.6 3.41 ± 4% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.do_unlinkat.do_syscall_64 14.86 ± 4% +1.0 15.83 ± 3% perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_open.do_syscall_64.entry_SYSCALL_64_after_hwframe 2.16 ± 58% +1.3 3.43 ± 4% perf-profile.calltrace.cycles-pp.down_write.do_unlinkat.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink 11.25 ± 57% +4.6 15.83 ± 3% perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_open.do_syscall_64.entry_SYSCALL_64_after_hwframe.creat 11.29 ± 57% +4.6 15.89 ± 3% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.creat 11.29 ± 57% +4.6 15.88 ± 3% perf-profile.calltrace.cycles-pp.do_sys_open.do_syscall_64.entry_SYSCALL_64_after_hwframe.creat 11.29 ± 57% +4.6 15.89 ± 3% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.creat 11.35 ± 57% +4.6 15.97 ± 3% perf-profile.calltrace.cycles-pp.creat aim7.jobs-per-min 39000 +-+-----------------------------------------------------------------+ | O O O O O O | 38000 O-O O O O O O O O O O O O O O | 37000 +-+ O O O O O | | O O O O | 36000 +-+ O O | 35000 +-+ O | +. .+..+. | 34000 +-+ : + +.+ | 33000 +-+ : | | .+ : | 32000 +-+ .+..+.+. .+.+. .+.+..+.+. .+.+.+. .+.+ : : | 31000 +-+.+ + + +.+ +..+ :: | | + | 30000 +-+-----------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Rong Chen

3 years, 4 months

1
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68b68a99e7 [ 68.054311] BUG kmalloc-4k (Not tainted): Poison overwritten

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is git://linuxtv.org/sailus/media_tree.git master commit 68b68a99e7d028f95e97bf05279e5f3f350af3ad Author: Sakari Ailus <sakari.ailus(a)linux.intel.com> AuthorDate: Fri Apr 5 17:47:04 2019 +0300 Commit: Sakari Ailus <sakari.ailus(a)linux.intel.com> CommitDate: Mon Apr 8 12:43:34 2019 +0300 media: Set subdev's device node to NULL on devnode unregistration When an async sub-device is bound to a notifier, or when the notifier's complete callback is called, a device node will be created for the async sub-device. Once the notifier is unregistered, the async sub-device's device node is unregistered, too. But the pointer to this device node was left dangling. While the pointer is not apparently dereferenced, it will prevent registering a new device node for that async sub-device if a new notifier that matches with the async sub-device is registered. Fix this by setting the device node pointer to NULL when it is unregistered. Fixes: 0e43734d4c46 ("media: v4l2-subdev: add release() internal op") Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> 9d608d3e89 media: ov2659: fix unbalanced mutex_lock/unlock 68b68a99e7 media: Set subdev's device node to NULL on devnode unregistration fc9ec521a0 ipu3-imgu: Use %u for formatting unsigned values (not %d) +------------------------------------------------------------------+------------+------------+------------+ | | 9d608d3e89 | 68b68a99e7 | fc9ec521a0 | +------------------------------------------------------------------+------------+------------+------------+ | boot_successes | 31 | 0 | 0 | | boot_failures | 0 | 11 | 11 | | BUG_kmalloc-#k(Not_tainted):Poison_overwritten | 0 | 11 | 11 | | INFO:0x(____ptrval____)-0x(____ptrval____).First_byte#instead_of | 0 | 11 | 11 | | INFO:Allocated_in_vimc_sen_comp_bind_age=#cpu=#pid= | 0 | 11 | 11 | | INFO:Freed_in_v4l2_device_release_subdev_node_age=#cpu=#pid= | 0 | 11 | 11 | | INFO:Slab0x(____ptrval____)objects=#used=#fp=0x(#)flags= | 0 | 11 | 11 | | INFO:Object0x(____ptrval____)@offset=#fp=0x(____ptrval____) | 0 | 11 | 11 | | BUG_kmalloc-#k(Tainted:G_B):Poison_overwritten | 0 | 6 | 6 | | BUG_kmalloc-#(Tainted:G_B):Poison_overwritten | 0 | 7 | 9 | | INFO:Allocated_in_vimc_deb_comp_bind_age=#cpu=#pid= | 0 | 7 | 9 | | INFO:Object0x(____ptrval____)@offset=#fp=0x(null) | 0 | 1 | | | INFO:Allocated_in_vimc_sca_comp_bind_age=#cpu=#pid= | 0 | 1 | 1 | +------------------------------------------------------------------+------------+------------+------------+ [ 68.030232] vimc vimc.0: bound vimc-capture.5.auto (ops vimc_cap_comp_ops) [ 68.041719] vimc vimc.0: bound vimc-sensor.6.auto (ops vimc_sen_comp_ops) [ 68.043293] vimc vimc.0: bound vimc-scaler.7.auto (ops vimc_sca_comp_ops) [ 68.045315] vimc vimc.0: bound vimc-capture.8.auto (ops vimc_cap_comp_ops) [ 68.052403] ============================================================================= [ 68.054311] BUG kmalloc-4k (Not tainted): Poison overwritten [ 68.055557] ----------------------------------------------------------------------------- [ 68.055557] [ 68.056353] Disabling lock debugging due to kernel taint [ 68.056353] INFO: 0x(____ptrval____)-0x(____ptrval____). First byte 0x0 instead of 0x6b [ 68.056353] INFO: Allocated in vimc_sen_comp_bind+0x61/0x2e0 age=7 cpu=1 pid=1 [ 68.056353] kmem_cache_alloc_trace+0x323/0x370 [ 68.056353] vimc_sen_comp_bind+0x61/0x2e0 [ 68.056353] component_bind_all+0x116/0x240 [ 68.056353] vimc_comp_bind+0x39/0x180 [ 68.056353] try_to_bring_up_master+0x12c/0x170 # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 6e17fb1d1a384e20f2699b6fdfa5cd4e61360eb4 15ade5d2e7775667cf191cf2f94327a4889f8b9d -- git bisect bad 2319249bb077e92e44b564ea8a5759b2c3238a9c # 00:55 B 0 7 21 0 Merge 'linux-review/Chris-Wilson/drm-i915-Be-precise-in-types-for-i915_gem_busy/20190404-194327' into devel-hourly-2019041006 git bisect good 5dbb2d9d86154612f85163aeeb61a9714f120be8 # 01:20 G 10 0 0 0 Merge 'linux-review/Dongli-Zhang/swiotlb-dump-used-and-total-slots-when-swiotlb-buffer-is-full/20190408-013102' into devel-hourly-2019041006 git bisect bad bd615aa8e1f7dbb21da5c2953c1adaf4bd4c1bd6 # 01:32 B 0 1 15 0 Merge 'dlm/next' into devel-hourly-2019041006 git bisect bad b407cebeaabc194d4ab4fbd9ef8737c044fca917 # 01:55 B 0 1 15 0 Merge 'linux-review/Qu-Wenruo/block-Add-new-BLK_STS_SELFTEST-status/20190407-042001' into devel-hourly-2019041006 git bisect bad 073945cfa6eb671ec63393ece470d15ca22ab7f1 # 02:14 B 0 5 19 0 Merge 'linux-review/Michal-Suchanek/dmaengine-bcm2835-Drop-duplicate-capability-setting/20190407-173405' into devel-hourly-2019041006 git bisect bad c3cc11b4792d8f6334758fb3002ddcf6663cc319 # 02:34 B 0 1 15 0 Merge 'sailus-media/master' into devel-hourly-2019041006 git bisect good 1e1bdecb0bcbf25832b39738ee833954ac996ee2 # 03:14 G 11 0 0 0 Merge 'linux-review/Hook-Gary/x86-mm-mem_encrypt-Disable-all-instrumentation-for-SME-early-boot-code/20190408-003938' into devel-hourly-2019041006 git bisect good d5639d5279f2fb0a5c2a14d9a74f7f33845cd2c9 # 03:40 G 11 0 0 0 Merge 'linux-review/Christopher-M-Riedl/powerpc-xmon-add-read-only-mode/20190408-123724' into devel-hourly-2019041006 git bisect good 73071eda1c4fdf474563f6a333fef76385d5d2eb # 04:00 G 11 0 0 0 Merge 'leo/next' into devel-hourly-2019041006 git bisect good dff077905fde45d054812774a18c4cba642cfa71 # 04:21 G 11 0 0 0 Merge 'linux-review/Jan-Kotas/soundwire-fix-pm_runtime_get_sync-return-code-checks/20190407-234315' into devel-hourly-2019041006 git bisect bad 68b68a99e7d028f95e97bf05279e5f3f350af3ad # 04:31 B 0 4 18 0 media: Set subdev's device node to NULL on devnode unregistration git bisect good 75def1624b3fdc959a79bfeef0f9e9518866e545 # 05:44 G 11 0 6 6 media: ov6650: Register with asynchronous subdevice framework git bisect good 9d608d3e894422936a7a8688313c208de350c2d4 # 06:07 G 11 0 0 0 media: ov2659: fix unbalanced mutex_lock/unlock # first bad commit: [68b68a99e7d028f95e97bf05279e5f3f350af3ad] media: Set subdev's device node to NULL on devnode unregistration git bisect good 9d608d3e894422936a7a8688313c208de350c2d4 # 06:17 G 30 0 0 0 media: ov2659: fix unbalanced mutex_lock/unlock # extra tests with debug options git bisect bad 68b68a99e7d028f95e97bf05279e5f3f350af3ad # 06:33 B 0 1 15 0 media: Set subdev's device node to NULL on devnode unregistration # extra tests on HEAD of linux-devel/devel-hourly-2019041006 git bisect bad 6e17fb1d1a384e20f2699b6fdfa5cd4e61360eb4 # 06:38 B 0 15 34 0 0day head guard for 'devel-hourly-2019041006' # extra tests on tree/branch sailus-media/master git bisect bad fc9ec521a0e654c8c4c43ef24a9bbb74de86725e # 07:03 B 0 1 15 0 ipu3-imgu: Use %u for formatting unsigned values (not %d) # extra tests with first bad commit reverted git bisect good 60381118a475ef23df30486b5e1efa6b28da5427 # 07:26 G 11 0 0 0 Revert "media: Set subdev's device node to NULL on devnode unregistration" --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

3 years, 4 months

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68b68a99e7 ("media: Set subdev's device node to NULL on .."): BUG kmalloc-4k (Not tainted): Poison overwritten

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is git://linuxtv.org/sailus/media_tree.git master commit 68b68a99e7d028f95e97bf05279e5f3f350af3ad Author: Sakari Ailus <sakari.ailus(a)linux.intel.com> AuthorDate: Fri Apr 5 17:47:04 2019 +0300 Commit: Sakari Ailus <sakari.ailus(a)linux.intel.com> CommitDate: Mon Apr 8 12:43:34 2019 +0300 media: Set subdev's device node to NULL on devnode unregistration When an async sub-device is bound to a notifier, or when the notifier's complete callback is called, a device node will be created for the async sub-device. Once the notifier is unregistered, the async sub-device's device node is unregistered, too. But the pointer to this device node was left dangling. While the pointer is not apparently dereferenced, it will prevent registering a new device node for that async sub-device if a new notifier that matches with the async sub-device is registered. Fix this by setting the device node pointer to NULL when it is unregistered. Fixes: 0e43734d4c46 ("media: v4l2-subdev: add release() internal op") Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> 9d608d3e89 media: ov2659: fix unbalanced mutex_lock/unlock 68b68a99e7 media: Set subdev's device node to NULL on devnode unregistration fc9ec521a0 ipu3-imgu: Use %u for formatting unsigned values (not %d) +------------------------------------------------------------------+------------+------------+------------+ | | 9d608d3e89 | 68b68a99e7 | fc9ec521a0 | +------------------------------------------------------------------+------------+------------+------------+ | boot_successes | 31 | 0 | 0 | | boot_failures | 0 | 11 | 11 | | BUG_kmalloc-#k(Not_tainted):Poison_overwritten | 0 | 11 | 11 | | INFO:0x(____ptrval____)-0x(____ptrval____).First_byte#instead_of | 0 | 11 | 11 | | INFO:Allocated_in_vimc_sen_comp_bind_age=#cpu=#pid= | 0 | 11 | 11 | | INFO:Freed_in_v4l2_device_release_subdev_node_age=#cpu=#pid= | 0 | 11 | 11 | | INFO:Slab0x(____ptrval____)objects=#used=#fp=0x(#)flags= | 0 | 11 | 11 | | INFO:Object0x(____ptrval____)@offset=#fp=0x(____ptrval____) | 0 | 11 | 11 | | BUG_kmalloc-#k(Tainted:G_B):Poison_overwritten | 0 | 6 | 6 | | BUG_kmalloc-#(Tainted:G_B):Poison_overwritten | 0 | 7 | 9 | | INFO:Allocated_in_vimc_deb_comp_bind_age=#cpu=#pid= | 0 | 7 | 9 | | INFO:Object0x(____ptrval____)@offset=#fp=0x(null) | 0 | 1 | | | INFO:Allocated_in_vimc_sca_comp_bind_age=#cpu=#pid= | 0 | 1 | 1 | +------------------------------------------------------------------+------------+------------+------------+ [ 68.030232] vimc vimc.0: bound vimc-capture.5.auto (ops vimc_cap_comp_ops) [ 68.041719] vimc vimc.0: bound vimc-sensor.6.auto (ops vimc_sen_comp_ops) [ 68.043293] vimc vimc.0: bound vimc-scaler.7.auto (ops vimc_sca_comp_ops) [ 68.045315] vimc vimc.0: bound vimc-capture.8.auto (ops vimc_cap_comp_ops) [ 68.052403] ============================================================================= [ 68.054311] BUG kmalloc-4k (Not tainted): Poison overwritten [ 68.055557] ----------------------------------------------------------------------------- [ 68.055557] [ 68.056353] Disabling lock debugging due to kernel taint [ 68.056353] INFO: 0x(____ptrval____)-0x(____ptrval____). First byte 0x0 instead of 0x6b [ 68.056353] INFO: Allocated in vimc_sen_comp_bind+0x61/0x2e0 age=7 cpu=1 pid=1 [ 68.056353] kmem_cache_alloc_trace+0x323/0x370 [ 68.056353] vimc_sen_comp_bind+0x61/0x2e0 [ 68.056353] component_bind_all+0x116/0x240 [ 68.056353] vimc_comp_bind+0x39/0x180 [ 68.056353] try_to_bring_up_master+0x12c/0x170 # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 6e17fb1d1a384e20f2699b6fdfa5cd4e61360eb4 15ade5d2e7775667cf191cf2f94327a4889f8b9d -- git bisect bad 2319249bb077e92e44b564ea8a5759b2c3238a9c # 00:55 B 0 7 21 0 Merge 'linux-review/Chris-Wilson/drm-i915-Be-precise-in-types-for-i915_gem_busy/20190404-194327' into devel-hourly-2019041006 git bisect good 5dbb2d9d86154612f85163aeeb61a9714f120be8 # 01:20 G 10 0 0 0 Merge 'linux-review/Dongli-Zhang/swiotlb-dump-used-and-total-slots-when-swiotlb-buffer-is-full/20190408-013102' into devel-hourly-2019041006 git bisect bad bd615aa8e1f7dbb21da5c2953c1adaf4bd4c1bd6 # 01:32 B 0 1 15 0 Merge 'dlm/next' into devel-hourly-2019041006 git bisect bad b407cebeaabc194d4ab4fbd9ef8737c044fca917 # 01:55 B 0 1 15 0 Merge 'linux-review/Qu-Wenruo/block-Add-new-BLK_STS_SELFTEST-status/20190407-042001' into devel-hourly-2019041006 git bisect bad 073945cfa6eb671ec63393ece470d15ca22ab7f1 # 02:14 B 0 5 19 0 Merge 'linux-review/Michal-Suchanek/dmaengine-bcm2835-Drop-duplicate-capability-setting/20190407-173405' into devel-hourly-2019041006 git bisect bad c3cc11b4792d8f6334758fb3002ddcf6663cc319 # 02:34 B 0 1 15 0 Merge 'sailus-media/master' into devel-hourly-2019041006 git bisect good 1e1bdecb0bcbf25832b39738ee833954ac996ee2 # 03:14 G 11 0 0 0 Merge 'linux-review/Hook-Gary/x86-mm-mem_encrypt-Disable-all-instrumentation-for-SME-early-boot-code/20190408-003938' into devel-hourly-2019041006 git bisect good d5639d5279f2fb0a5c2a14d9a74f7f33845cd2c9 # 03:40 G 11 0 0 0 Merge 'linux-review/Christopher-M-Riedl/powerpc-xmon-add-read-only-mode/20190408-123724' into devel-hourly-2019041006 git bisect good 73071eda1c4fdf474563f6a333fef76385d5d2eb # 04:00 G 11 0 0 0 Merge 'leo/next' into devel-hourly-2019041006 git bisect good dff077905fde45d054812774a18c4cba642cfa71 # 04:21 G 11 0 0 0 Merge 'linux-review/Jan-Kotas/soundwire-fix-pm_runtime_get_sync-return-code-checks/20190407-234315' into devel-hourly-2019041006 git bisect bad 68b68a99e7d028f95e97bf05279e5f3f350af3ad # 04:31 B 0 4 18 0 media: Set subdev's device node to NULL on devnode unregistration git bisect good 75def1624b3fdc959a79bfeef0f9e9518866e545 # 05:44 G 11 0 6 6 media: ov6650: Register with asynchronous subdevice framework git bisect good 9d608d3e894422936a7a8688313c208de350c2d4 # 06:07 G 11 0 0 0 media: ov2659: fix unbalanced mutex_lock/unlock # first bad commit: [68b68a99e7d028f95e97bf05279e5f3f350af3ad] media: Set subdev's device node to NULL on devnode unregistration git bisect good 9d608d3e894422936a7a8688313c208de350c2d4 # 06:17 G 30 0 0 0 media: ov2659: fix unbalanced mutex_lock/unlock # extra tests with debug options git bisect bad 68b68a99e7d028f95e97bf05279e5f3f350af3ad # 06:33 B 0 1 15 0 media: Set subdev's device node to NULL on devnode unregistration # extra tests on HEAD of linux-devel/devel-hourly-2019041006 git bisect bad 6e17fb1d1a384e20f2699b6fdfa5cd4e61360eb4 # 06:38 B 0 15 34 0 0day head guard for 'devel-hourly-2019041006' # extra tests on tree/branch sailus-media/master git bisect bad fc9ec521a0e654c8c4c43ef24a9bbb74de86725e # 07:03 B 0 1 15 0 ipu3-imgu: Use %u for formatting unsigned values (not %d) # extra tests with first bad commit reverted git bisect good 60381118a475ef23df30486b5e1efa6b28da5427 # 07:26 G 11 0 0 0 Revert "media: Set subdev's device node to NULL on devnode unregistration" --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

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3b4ba6643d ("locking/rwsem: Enhance DEBUG_RWSEMS_WARN_ON() .."): WARNING: CPU: 0 PID: 0 at kernel/locking/rwsem.h:273 up_write

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.locking/core commit 3b4ba6643d26a95e08067fca9a5da1828f9afabf Author: Waiman Long <longman(a)redhat.com> AuthorDate: Thu Apr 4 13:43:15 2019 -0400 Commit: Ingo Molnar <mingo(a)kernel.org> CommitDate: Wed Apr 10 10:56:03 2019 +0200 locking/rwsem: Enhance DEBUG_RWSEMS_WARN_ON() macro Currently, the DEBUG_RWSEMS_WARN_ON() macro just dumps a stack trace when the rwsem isn't in the right state. It does not show the actual states of the rwsem. This may not be that helpful in the debugging process. Enhance the DEBUG_RWSEMS_WARN_ON() macro to also show the current content of the rwsem count and owner fields to give more information about what is wrong with the rwsem. The debug_locks_off() function is called as is done inside DEBUG_LOCKS_WARN_ON(). Signed-off-by: Waiman Long <longman(a)redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra(a)chello.nl> Acked-by: Davidlohr Bueso <dbueso(a)suse.de> Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: Arnd Bergmann <arnd(a)arndb.de> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Davidlohr Bueso <dave(a)stgolabs.net> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Tim Chen <tim.c.chen(a)linux.intel.com> Cc: Will Deacon <will.deacon(a)arm.com> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <mingo(a)kernel.org> a68e2c4c63 locking/rwsem: Add debug check for __down_read*() 3b4ba6643d locking/rwsem: Enhance DEBUG_RWSEMS_WARN_ON() macro 5c587ed687 locking/rwsem: Remove redundant computation of writer lock word 31437a258f Merge branch 'perf/urgent' +---------------------------------------------+------------+------------+------------+------------+ | | a68e2c4c63 | 3b4ba6643d | 5c587ed687 | 31437a258f | +---------------------------------------------+------------+------------+------------+------------+ | boot_successes | 40 | 0 | 0 | 11 | | boot_failures | 0 | 11 | 13 | | | WARNING:at_kernel/locking/rwsem.h:#up_write | 0 | 11 | 13 | | | EIP:up_write | 0 | 11 | 13 | | +---------------------------------------------+------------+------------+------------+------------+ [ 0.191085] A-B-C-D-B-D-D-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 0.197274] A-B-C-D-B-C-D-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 0.203483] double unlock: ok | ok | ok | ok | [ 0.205265] ------------[ cut here ]------------ [ 0.206323] DEBUG_RWSEMS_WARN_ON(sem->owner != current): count = 0x0, owner = 0x0, curr 0xd4657d00, list empty [ 0.207250] WARNING: CPU: 0 PID: 0 at kernel/locking/rwsem.h:273 up_write+0x9f/0xb0 [ 0.208118] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G T 5.1.0-rc4-00065-g3b4ba66 #1 [ 0.208930] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 0.209691] EIP: up_write+0x9f/0xb0 [ 0.210021] Code: 05 b3 66 79 d4 01 39 ce be 3d af 51 d4 b9 8c cd 52 d4 0f 45 ce 8b 33 51 52 50 56 68 42 af 51 d4 68 b8 af 51 d4 e8 51 16 fb ff <0f> 0b 83 c4 18 eb b3 8d 76 00 8d bc 27 00 00 00 00 3e 8d 74 26 00 [ 0.211716] EAX: 00000062 EBX: d46c49e0 ECX: d36c6044 EDX: 00000002 [ 0.212294] ESI: 00000000 EDI: d3990d40 EBP: d464bf34 ESP: d464bf14 [ 0.212874] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210286 [ 0.213495] CR0: 80050033 CR2: ffffffff CR3: 14a12000 CR4: 000406b0 [ 0.214076] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 0.214657] DR6: fffe0ff0 DR7: 00000400 [ 0.215018] Call Trace: [ 0.215253] double_unlock_wsem+0x21/0x30 [ 0.215626] dotest+0x2a/0x5c0 [ 0.215918] locking_selftest+0x4d6/0x1cc0 [ 0.216301] start_kernel+0x358/0x42c [ 0.216642] i386_start_kernel+0xac/0xb0 [ 0.217013] startup_32_smp+0x164/0x170 [ 0.217371] irq event stamp: 385 [ 0.217675] hardirqs last enabled at (385): [<d36c6075>] vprintk_emit+0x135/0x370 [ 0.218373] hardirqs last disabled at (384): [<d36c5f8c>] vprintk_emit+0x4c/0x370 [ 0.219063] softirqs last enabled at (0): [<00000000>] (null) [ 0.219615] softirqs last disabled at (0): [<00000000>] (null) [ 0.220173] random: get_random_bytes called from print_oops_end_marker+0x4f/0x60 with crng_init=0 [ 0.220988] ---[ end trace 7d35dc4b16298f6a ]--- [ 0.221416] ok | ok | ok | # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 5c587ed687faed2eb0afdd669ddd167d0d940236 5e7a8ca319268a70a6c7c3c1fde5bea38e1e5539 -- git bisect bad fb346fd9fc081c3d978c3f3d26d39334527a2662 # 20:06 B 0 11 35 10 locking/lock_events: Make lock_events available for all archs & other locks git bisect good eecec78f777742903ec9167490c625661284155d # 20:25 G 11 0 0 0 locking/rwsem: Relocate rwsem_down_read_failed() git bisect good a338ecb07a338c9a8b0ca0010e862ebe598b1551 # 20:35 G 11 0 0 0 locking/rwsem: Micro-optimize rwsem_try_read_lock_unqueued() git bisect bad 3b4ba6643d26a95e08067fca9a5da1828f9afabf # 20:50 B 0 10 24 0 locking/rwsem: Enhance DEBUG_RWSEMS_WARN_ON() macro git bisect good a68e2c4c637918da47b3aa270051545cff7d8245 # 21:00 G 11 0 0 0 locking/rwsem: Add debug check for __down_read*() # first bad commit: [3b4ba6643d26a95e08067fca9a5da1828f9afabf] locking/rwsem: Enhance DEBUG_RWSEMS_WARN_ON() macro git bisect good a68e2c4c637918da47b3aa270051545cff7d8245 # 21:04 G 31 0 0 0 locking/rwsem: Add debug check for __down_read*() # extra tests on HEAD of tip/WIP.locking/core git bisect bad 5c587ed687faed2eb0afdd669ddd167d0d940236 # 21:04 B 0 13 30 0 locking/rwsem: Remove redundant computation of writer lock word # extra tests on tree/branch tip/WIP.locking/core git bisect bad 5c587ed687faed2eb0afdd669ddd167d0d940236 # 21:06 B 0 13 30 0 locking/rwsem: Remove redundant computation of writer lock word # extra tests on tree/branch tip/master git bisect good 31437a258fa637d7449385ef2e1b33efc6786397 # 21:20 G 11 0 0 0 Merge branch 'perf/urgent' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

3 years, 4 months

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LKP April 2019