linux-kernel - [jump_label] b8efb810ab: leaking-addresses.proc..data.unlikely.

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Message-ID: <20211114140738.GA10763@xsang-OptiPlex-9020>
Date:   Sun, 14 Nov 2021 22:07:38 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     lkp@...ts.01.org, lkp@...el.com,
        Peter Zijlstra <peterz@...radead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: [jump_label] b8efb810ab: leaking-addresses.proc..data.unlikely.



Greeting,

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

commit: b8efb810ab1497958e1338a0d7a824bd2d638cfe ("[PATCH 2/2] jump_label: refine placement of static_keys")
url: https://github.com/0day-ci/linux/commits/Eric-Dumazet/jump_label-add-__static_key-macro/20211110-092432
base: https://git.kernel.org/cgit/linux/kernel/git/herbert/cryptodev-2.6.git master

in testcase: leaking-addresses
version: leaking-addresses-x86_64-cf2a85e-1_20211110
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>



Total number of results from scan (incl dmesg): 156275

dmesg output:
[    1.860342] mapped IOAPIC to ffffffffff5fb000 (fec00000)

Results squashed by filename (excl dmesg). Displaying [<number of results> <filename>], <example result>
...
[4 .data.unlikely] 0xffffffffc04bb1c0   <--- the issue only exists in this commit
[29 .text.unlikely] 0xffffffffc00bac5c  <--- this was also observed in parent commit
...



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-5.15.0-rc1-00064-gb8efb810ab14" of type "text/plain" (174001 bytes)

View attachment "job-script" of type "text/plain" (5445 bytes)

View attachment "job.yaml" of type "text/plain" (4436 bytes)

View attachment "reproduce" of type "text/plain" (124 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (20108 bytes)

View attachment "leaking-addresses" of type "text/plain" (2816 bytes)