Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 5ecd5a0c7d1cca79f1431093d12e4cd9893b0331 ("perf metrics: Modify setup and deduplication")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

in testcase: perf-sanity-tests
version: perf-x86_64-cc0356d6a02e-1_20211102
with following parameters:

	perf_compiler: gcc
	ucode: 0xde



on test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz with 32G 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@intel.com>

2021-11-04 13:27:18 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-func-5ecd5a0c7d1cca79f1431093d12e4cd9893b0331/tools/perf/perf test 68
68: Parse and process metrics                                       : FAILED!

>>> another failed test but can pass on parent
2021-11-04 13:27:18 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-func-5ecd5a0c7d1cca79f1431093d12e4cd9893b0331/tools/perf/perf test 70
70: Event expansion for cgroups                                     : FAILED!



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/lkp(a)lists.01.org       Intel Corporation

Thanks,
Oliver Sang