linux-kernel - [oracle-dtrace:kallmodsyms/6.1-rc4] [perf] e75694fed7: perf-sanity-tests.vmlinux_symtab_matches

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Message-ID: <202212200954.f839f6df-oliver.sang@intel.com>
Date:   Tue, 20 Dec 2022 09:55:45 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Nick Alcock <nick.alcock@...cle.com>
CC:     <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
        Kris Van Hees <kris.van.hees@...cle.com>,
        <linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [oracle-dtrace:kallmodsyms/6.1-rc4] [perf]  e75694fed7:
 perf-sanity-tests.vmlinux_symtab_matches_kallsyms.fail


Greeting,

FYI, we noticed perf-sanity-tests.vmlinux_symtab_matches_kallsyms.fail due to commit (built with gcc-11):

commit: e75694fed7659c89b5321eca29484ebf1f3bd086 ("perf: proof-of-concept kallmodsyms support")
https://github.com/oracle/dtrace-linux-kernel kallmodsyms/6.1-rc4

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

	perf_compiler: clang



on test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz (Kaby Lake) 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@...el.com>
| Link: https://lore.kernel.org/oe-lkp/202212200954.f839f6df-oliver.sang@intel.com


please be noted besides vmlinux_symtab_matches_kallsyms.fail we reported in
title, we also noticed perf-sanity-tests.Object_code_reading.fail on this
commit which is clean on parent.

46794e83a4bf977a e75694fed7659c89b5321eca294
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :6           83%           5:5     perf-sanity-tests.Object_code_reading.fail
           :6           83%           5:5     perf-sanity-tests.vmlinux_symtab_matches_kallsyms.fail


2022-12-19 07:09:39 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-func-e75694fed7659c89b5321eca29484ebf1f3bd086/tools/perf/perf test 1
  1: vmlinux symtab matches kallsyms                                 : FAILED!

...

2022-12-19 07:10:43 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-func-e75694fed7659c89b5321eca29484ebf1f3bd086/tools/perf/perf test 26
 26: Object code reading                                             : 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.



-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



View attachment "config-6.1.0-rc4-00008-ge75694fed765" of type "text/plain" (170397 bytes)

View attachment "job-script" of type "text/plain" (5683 bytes)

Download attachment "kmsg.xz" of type "application/x-xz" (48884 bytes)

View attachment "perf-sanity-tests" of type "text/plain" (45936 bytes)

View attachment "job.yaml" of type "text/plain" (4658 bytes)

View attachment "reproduce" of type "text/plain" (12953 bytes)