FYI, we noticed the following commit (built with gcc-7):

commit: d5c5e46aa7a2b256a526f9ce832ffbf622c3c19a ("perf test shell: Fix test case probe libc's inet_pton on s390x")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: perf-sanity-tests
with following parameters:




on test machine: 56 threads Intel(R) Xeon(R) CPU E5-2695 v3 @ 2.30GHz with 256G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):

62: probe libc's inet_pton & backtrace it with ping       : FAILED!

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