FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/mlin/linux.git block-dio-rewrite commit cc0d696334d141093e82fbab8ebb7fd723aa9bf3 ("tmp") +----------------------------------------------------------------+------------+------------+ | | 8aa0d3baa9 | cc0d696334 | +----------------------------------------------------------------+------------+------------+ | boot_successes | 24 | 15 | | boot_failures | 2 | 17 | | BUG:unable_to_handle_kernel | 1 | 6 | | Oops | 1 | 6 | | RIP:inode_permission | 1 | | | BUG:kernel_test_hang | 1 | | | Unexpected_close,not_stopping_watchdog | 0 | 11 | | RIP:blk_rq_map_sg | 0 | 1 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 1 | | backtrace:scsi_init_sgtable | 0 | 1 | | backtrace:scsi_init_io | 0 | 1 | | backtrace:sd_setup_read_write_cmnd | 0 | 1 | | backtrace:sd_init_command | 0 | 1 | | backtrace:vfs_write | 0 | 1 | | backtrace:SyS_pwrite64 | 0 | 1 | | Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 5 | | RIP:__queue_work | 0 | 3 | | WARNING:at_arch/x86/kernel/smp.c:#native_smp_send_reschedule() | 0 | 1 | | backtrace:load_module | 0 | 1 | | backtrace:SyS_finit_module | 0 | 1 | +----------------------------------------------------------------+------------+------------+ [ 19.970876] Oops: 0000 [#1] SMP [ 19.974502] Modules linked in: ipmi_watchdog rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver btrfs xor raid6_pq sr_mod cdrom sg sd_mod mgag200 syscopyarea sysfillrect coretemp sysimgblt kvm_intel ttm snd_pcm snd_timer drm_kms_helper ahci kvm snd libahci i7core_edac crc32c_intel drm soundcore ipmi_si libata usb_storage pcspkr i2c_i801 edac_core microcode shpchp ipmi_msghandler acpi_cpufreq [ 20.013380] CPU: 1 PID: 632 Comm: mkfs.xfs Not tainted 4.1.0-rc2-00012-gcc0d696 #1 [ 20.021848] Hardware name: Intel Corporation S5520UR/S5520UR, BIOS S5500.86B.01.00.0050.050620101605 05/06/2010 [ 20.033133] task: ffff880358109d90 ti: ffff8803585c0000 task.ti: ffff8803585c0000 [ 20.041503] RIP: 0010:[<ffffffff813efeaa>] [<ffffffff813efeaa>] blk_rq_map_sg+0x1da/0x4f0 [ 20.050758] RSP: 0018:ffff8803585c3a38 EFLAGS: 00010006 [ 20.057303] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 20.065912] RDX: 00000000ffffffff RSI: 0000000000000000 RDI: ffff880358a61520 [ 20.074480] RBP: ffff8803585c3ac8 R08: 0000000000000000 R09: 00000000fffffffc [ 20.083054] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000020000 [ 20.091632] R13: 0000000000000000 R14: ffff880358832570 R15: 0000000000000000 [ 20.100199] FS: 00007fd09ebcc780(0000) GS:ffff88036fa00000(0000) knlGS:0000000000000000 [ 20.109834] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.116833] CR2: 00000000fffffffc CR3: 0000000357f9a000 CR4: 00000000000007e0 [ 20.125377] Stack: [ 20.128174] ffff8803585c3a98 ffffffff8142535c ffff880358a60c00 ffff880356780000 [ 20.137027] 0000000000000f01 ffff8803585c8450 0000000000000000 0000004ae7f861e0 [ 20.145874] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 20.154716] Call Trace: [ 20.157991] [<ffffffff8142535c>] ? __sg_alloc_table+0x7c/0x180 [ 20.165159] [<ffffffff81595f08>] scsi_init_sgtable+0x48/0x90 [ 20.172114] [<ffffffff81595f9a>] scsi_init_io+0x4a/0x1e0 [ 20.178662] [<ffffffffa0007dc8>] sd_setup_read_write_cmnd+0x38/0xa70 [sd_mod] [ 20.187240] [<ffffffff8158d97f>] ? scsi_host_alloc_command+0x4f/0xd0 [ 20.194956] [<ffffffffa000b9cb>] sd_init_command+0x2b/0xb0 [sd_mod] [ 20.202563] [<ffffffff81596228>] scsi_setup_cmnd+0xf8/0x170 [ 20.209386] [<ffffffff8159641b>] scsi_prep_fn+0xdb/0x180 [ 20.215958] [<ffffffff81408b4f>] ? deadline_dispatch_requests+0xaf/0x170 [ 20.224058] [<ffffffff813ead03>] blk_peek_request+0x173/0x290 [ 20.231099] [<ffffffff815981f8>] scsi_request_fn+0x48/0x7e0 [ 20.237953] [<ffffffff813e5187>] __blk_run_queue+0x37/0x50 [ 20.244715] [<ffffffff813e599e>] queue_unplugged+0x2e/0xb0 [ 20.251477] [<ffffffff813eb104>] blk_flush_plug_list+0x1b4/0x210 [ 20.258829] [<ffffffff813eb538>] blk_finish_plug+0x18/0x60 [ 20.265608] [<ffffffff81227359>] blkdev_write_iter+0xd9/0x110 [ 20.272677] [<ffffffff811ec491>] __vfs_write+0xb1/0xf0 [ 20.279080] [<ffffffff811ecb59>] vfs_write+0xa9/0x1b0 [ 20.285393] [<ffffffff811edad2>] SyS_pwrite64+0x72/0xb0 [ 20.291906] [<ffffffff8106279f>] ? do_page_fault+0x2f/0x80 [ 20.298719] [<ffffffff818c68ae>] system_call_fastpath+0x12/0x71 [ 20.306009] Code: e2 0c 48 01 fe 48 01 d6 48 39 ce 0f 84 d0 01 00 00 49 83 21 fd 4c 89 cf 4c 89 45 a0 e8 00 52 03 00 49 89 c1 48 8b 45 b0 8b 4d bc <49> 8b 11 4c 8b 45 a0 83 e2 03 a8 03 0f 85 9c 01 00 00 48 09 d0 [ 20.328988] RIP [<ffffffff813efeaa>] blk_rq_map_sg+0x1da/0x4f0 [ 20.336209] RSP <ffff8803585c3a38> [ 20.340706] CR2: 00000000fffffffc [ 20.344993] ---[ end trace 3ab706b21ba136d5 ]--- [ 20.355374] Kernel panic - not syncing: Fatal exception Thanks, Ying Huang _______________________________________________ LKP mailing list LKP(a)linux.intel.com