[LKP] [lkp-robot] [perf/core] bc2a73c243: WARNING:at_include/linux/cpumask.h:#find_get_context

FYI, we noticed the following commit: commit: bc2a73c243d6adbb089de6c09a7aff1ae8ac645d ("perf/core: remove useless cast when comparing") url: https://github.com/0day-ci/linux/commits/Mars-Cheng/perf-core-remove-usel... 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-i386 -enable-kvm -m 320M caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +------------------------------------------------------+------------+------------+ | | b6263178b8 | bc2a73c243 | +------------------------------------------------------+------------+------------+ | boot_successes | 14 | 7 | | boot_failures | 2 | 9 | | BUG:kernel_reboot-without-warning_in_test_stage | 2 | 1 | | WARNING:at_include/linux/cpumask.h:#find_get_context | 0 | 8 | | BUG:unable_to_handle_kernel | 0 | 8 | | Oops | 0 | 8 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 8 | +------------------------------------------------------+------------+------------+ [ 180.446116] WARNING: CPU: 0 PID: 1432 at include/linux/cpumask.h:121 find_get_context+0x66/0x1f2 [ 180.502044] Modules linked in: [ 180.514134] CPU: 0 PID: 1432 Comm: trinity-main Not tainted 4.10.0-rc6-00189-gbc2a73c2 #2 [ 180.531792] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 180.552398] Call Trace: [ 180.559045] dump_stack+0x58/0x72 [ 180.567078] ? find_get_context+0x66/0x1f2 [ 180.576443] __warn+0xb2/0xc9 [ 180.583902] warn_slowpath_null+0x11/0x16 [ 180.593006] find_get_context+0x66/0x1f2 [ 180.601982] ? SyS_perf_event_open+0x4c5/0xc51 [ 180.611701] SyS_perf_event_open+0x5f6/0xc51 [ 180.621237] do_int80_syscall_32+0x47/0x8e [ 180.630666] entry_INT80_32+0x2a/0x2a [ 180.639221] EIP: 0x8090aa2 [ 180.646343] EFLAGS: 00000286 CPU: 0 [ 180.654643] EAX: ffffffda EBX: 08a24a78 ECX: ffffffff EDX: ffffffff [ 180.667481] ESI: 0000011a EDI: 00000001 EBP: 0000011c ESP: bfbfc288 [ 180.680152] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b [ 180.691684] ---[ end trace c7d7fa25409a3428 ]--- To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Xiaolong