linux-kernel - [kallsyms] a42fff4e29: leaking-addresses.proc.kallmodsyms.0T

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Date:   Sun, 19 Dec 2021 22:05:04 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Nick Alcock <nick.alcock@...cle.com>
Cc:     0day robot <lkp@...el.com>, Eugene Loh <eugene.loh@...cle.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        jeyu@...nel.org, masahiroy@...nel.org,
        linux-modules@...r.kernel.org, arnd@...db.de,
        akpm@...ux-foundation.org, kris.van.hees@...cle.com
Subject: [kallsyms]  a42fff4e29: leaking-addresses.proc.kallmodsyms.0T_stext



Greeting,

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

commit: a42fff4e29ff06e7c8e7f2e505787138b765976d ("[PATCH v7 7/7] kallsyms: add reliable symbol size info")
url: https://github.com/0day-ci/linux/commits/Nick-Alcock/kbuild-bring-back-tristate-conf/20211217-051935
base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git 136057256686de39cc3a07c2e39ef6bc43003ff6
patch link: https://lore.kernel.org/linux-modules/20211216201919.234994-8-nick.alcock@oracle.com

in testcase: leaking-addresses
version: leaking-addresses-x86_64-cf2a85e-1_20211208
with following parameters:

	ucode: 0x28



on test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz with 16G 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>



2021-12-18 07:48:44 ./leaking_addresses.pl --output-raw result/scan.out
2021-12-18 07:49:21 ./leaking_addresses.pl --input-raw result/scan.out --squash-by-filename

Total number of results from scan (incl dmesg): 331273

dmesg output:
[    2.159320] mapped IOAPIC to ffffffffff5fb000 (fec00000)

Results squashed by filename (excl dmesg). Displaying [<number of results> <filename>], <example result>
...
[164752 kallmodsyms] ffffffff81000000 0 T _stext
...



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@lists.01.org       Intel Corporation

Thanks,
Oliver Sang


View attachment "config-5.16.0-rc2-00007-ga42fff4e29ff" of type "text/plain" (177744 bytes)

View attachment "job-script" of type "text/plain" (5449 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (20828 bytes)

View attachment "leaking-addresses" of type "text/plain" (2867 bytes)

View attachment "job.yaml" of type "text/plain" (4451 bytes)

View attachment "reproduce" of type "text/plain" (125 bytes)