linux-kernel - [lkp-robot] [perf] c4c23fbd59: perf-sanity-tests.'import_perf'_in

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Message-ID: <20180716022755.GF27337@yexl-desktop>
Date:   Mon, 16 Jul 2018 10:27:55 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Dominique Martinet <asmadeus@...ewreck.org>
Cc:     0day robot <lkp@...el.com>, LKML <linux-kernel@...r.kernel.org>,
        lkp@...org
Subject: [lkp-robot] [perf]  c4c23fbd59:
 perf-sanity-tests.'import_perf'_in_python.fail


FYI, we noticed the following commit (built with gcc-6):

commit: c4c23fbd5921fe530ec6a6dcf6e772a8a2d113a1 ("perf: change strncpy+truncation to strlcpy")
https://github.com/0day-ci/linux UPDATE-20180714-184856/Dominique-Martinet/coccinelle-change-strncpy-truncation-to-strlcpy/20180714-082532

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

	perf_compiler: gcc



on test machine: qemu-system-x86_64 -enable-kvm -cpu kvm64,+ssse3 -smp 2 -m 8G

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


2018-07-14 23:39:08 sudo /usr/src/linux-perf-x86_64-randconfig-r0-07141954-c4c23fbd5921fe530ec6a6dcf6e772a8a2d113a1/tools/perf/perf test 18
18: 'import perf' in python                               : FAILED!


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email



Thanks,
Xiaolong

View attachment "config-4.18.0-rc4-00160-gc4c23fbd" of type "text/plain" (120762 bytes)

View attachment "job-script" of type "text/plain" (4437 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (23132 bytes)

View attachment "perf-sanity-tests" of type "text/plain" (25370 bytes)