Hello,
kernel test robot noticed "kernel-selftests.pidfd.pidfd_test.fail" on:
commit: e6d9be676d2c1fa8332c63c4382b8d3227fca991 ("[PATCH v2 1/3] pidfd: allow pidfd_open() on non-thread-group leaders")
url: https://github.com/intel-lab-lkp/linux/commits/Tycho-Andersen/selftests-pidfd-add-non-thread-group-leader-tests/20231208-011135
patch link: https://lore.kernel.org/all/20231207170946.130823-1-tycho@tycho.pizza/
patch subject: [PATCH v2 1/3] pidfd: allow pidfd_open() on non-thread-group leaders
in testcase: kernel-selftests
version: kernel-selftests-x86_64-60acb023-1_20230329
with following parameters:
group: pidfd
compiler: gcc-12
test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 32G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202312111516.26dc3fd5-oliver.sang@xxxxxxxxx
besides, we also observed kernel-selftests.pidfd.pidfd_poll_test.fail on this
commit, but clean on parent:
bee0e7762ad2c602 e6d9be676d2c1fa8332c63c4382
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
:6 100% 6:6 kernel-selftests.pidfd.pidfd_poll_test.fail
:6 100% 6:6 kernel-selftests.pidfd.pidfd_test.fail
TAP version 13
1..7
# timeout set to 300
# selftests: pidfd: pidfd_test
# TAP version 13
# 1..8
# # Parent: pid: 2191
# # Parent: Waiting for Child (2192) to complete.
# # Child (pidfd): starting. pid 2192 tid 2192
# # Child Thread: starting. pid 2192 tid 2193 ; and sleeping
# # Child Thread: doing exec of sleep
# Bail out! pidfd_poll check for premature notification on child thread exec test: Unexpected epoll_wait result (c=0, events=0) (errno 0)
# # Planned tests != run tests (8 != 0)
# # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0
not ok 1 selftests: pidfd: pidfd_test # exit=1
...
# timeout set to 300
# selftests: pidfd: pidfd_poll_test
# # running pidfd poll test for 10000 iterations
# Bail out! death notification wait timeout
# # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0
not ok 4 selftests: pidfd: pidfd_poll_test # exit=1
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231211/202312111516.26dc3fd5-oliver.sang@xxxxxxxxx
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0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
