FYI, we noticed the following commit:
commit: a5df70c354c26e20d5fd8eb64517f724e97ef0b2 ("perf/x86: Only show format
attributes when supported")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: perf-sanity-tests
with following parameters:
on test machine: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
2017-09-22 14:03:03 sudo
/usr/src/linux-perf-x86_64-rhel-7.2-a5df70c354c26e20d5fd8eb64517f724e97ef0b2/tools/perf/perf
test 5
5: Test data source output : Ok
2017-09-22 14:03:03 sudo
/usr/src/linux-perf-x86_64-rhel-7.2-a5df70c354c26e20d5fd8eb64517f724e97ef0b2/tools/perf/perf
test 6
6: Parse event definition strings : FAILED!
2017-09-22 14:03:03 sudo
/usr/src/linux-perf-x86_64-rhel-7.2-a5df70c354c26e20d5fd8eb64517f724e97ef0b2/tools/perf/perf
test 7
To reproduce:
git clone
https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
Thanks,
Xiaolong