Greeting, FYI, we noticed the following commit (built with gcc-9): commit: a1e09b03e6f5c1d713c88259909137c0fd264ede ("f2fs: use iomap for direct I/O") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master in testcase: ltp version: ltp-x86_64-14c1f76-1_20211221 with following parameters: disk: 1HDD fs: f2fs test: ltp-aiodio.part2 ucode: 0x21 test-description: The LTP testsuite contains a collection of tools for testing the Linux kernel and related features. test-url: http://linux-test-project.github.io/ on test machine: 4 threads 1 sockets Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 8G memory caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang(a)intel.com&gt; [ 106.307903][ T324] tag=ADSP024 stime=1640375440 [ 106.307911][ T324] [ 106.309407][ T324] cmdline="aiodio_sparse -i 4 -a 8k -w 1024k -s 4096k -n 6" [ 106.309415][ T324] [ 106.309855][ T324] contacts="" [ 106.309862][ T324] [ 106.310269][ T324] analysis=exit [ 106.310276][ T324] [ 106.310820][ T324] <<<test_output>>> [ 106.310827][ T324] [ 106.312502][ T324] non zero buffer at buf[0] => 0xffffffaa,ffffffaa,ffffffaa,ffffffaa [ 106.312510][ T324] [ 106.313451][ T324] non-zero read at offset 3915776 [ 106.313459][ T324] [ 106.314764][ T324] aiodio_sparse 0 TINFO : Dirtying free blocks [ 106.314772][ T324] [ 106.316062][ T324] aiodio_sparse 0 TINFO : Starting I/O tests [ 106.316069][ T324] [ 106.317884][ T324] non zero buffer at buf[0] => 0xffffffaa,ffffffaa,ffffffaa,ffffffaa [ 106.317893][ T324] [ 106.318836][ T324] non-zero read at offset 4034560 [ 106.318844][ T324] [ 106.320167][ T324] aiodio_sparse 0 TINFO : Dirtying free blocks [ 106.320175][ T324] [ 106.321599][ T324] aiodio_sparse 0 TINFO : Starting I/O tests [ 106.321607][ T324] [ 106.323179][ T324] aiodio_sparse 0 TINFO : Dirtying free blocks [ 106.323192][ T324] [ 106.324706][ T324] aiodio_sparse 0 TINFO : Starting I/O tests [ 106.324715][ T324] [ 106.326305][ T324] aiodio_sparse 0 TINFO : Killing childrens(s) [ 106.326313][ T324] [ 106.328815][ T324] aiodio_sparse 1 TFAIL : aiodio_sparse.c:309: 2 children(s) exited abnormally To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests sudo bin/lkp install job.yaml # job file is attached in this email bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run sudo bin/lkp run generated-yaml-file # if come across any failure that blocks the test, # please remove ~/.lkp and /lkp dir to run from a clean state. --- 0DAY/LKP+ Test Infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/[email protected] Intel Corporation Thanks, Oliver Sang