Message-ID: <20220128065310.GF8421@xsang-OptiPlex-9020>
Date:   Fri, 28 Jan 2022 14:53:10 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Jan Kara <jack@...e.cz>, Al Viro <viro@...iv.linux.org.uk>,
        Amir Goldstein <amir73il@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Antti Palosaari <crope@....fi>, Arnd Bergmann <arnd@...db.de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Benjamin LaHaise <bcrl@...ck.org>,
        Clemens Ladisch <clemens@...isch.de>,
        David Airlie <airlied@...ux.ie>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joel Becker <jlbec@...lplan.org>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
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        Xiaoming Ni <nixiaoming@...wei.com>,
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        Jani Nikula <jani.nikula@...el.com>,
        John Ogness <john.ogness@...utronix.de>,
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        "Rafael J. Wysocki" <rafael@...nel.org>,
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        Suren Baghdasaryan <surenb@...gle.com>,
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        Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        lkp@...el.com
Subject: [ocfs2]  c42ff46f97: sysctl_table_check_failed


(please be noted we reported "[ocfs2] 46e33fd45a: sysctl_table_check_failed"
on https://lists.01.org/hyperkitty/list/lkp@lists.01.org/thread/KQ2F6TPJWMDVEXJM4WTUC4DU3EH3YJVT/
when this commit on:
commit: 46e33fd45a52bf03769906e64d8a8a1ab317777d ("ocfs2: simplify subdirectory
registration with register_sysctl()")
https://git.kernel.org/cgit/linux/kernel/git/mcgrof/linux-next.git 20211118-sysctl-cleanups-set-04
we resend this report as a reminder the issue still exists on maineline)

Greeting,

FYI, we noticed the following commit (built with clang-14):

commit: c42ff46f97c1c25577a84fbfb111710d25a129e0 ("ocfs2: simplify subdirectory registration with register_sysctl()")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -cpu Icelake-Server -smp 4 -m 16G

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


+---------------------------+------------+------------+
|                           | e99f5e7479 | c42ff46f97 |
+---------------------------+------------+------------+
| sysctl_table_check_failed | 0          | 10         |
+---------------------------+------------+------------+


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>


[  187.975448][    T1] ksmbd: The ksmbd server is experimental, use at your own risk.
[  187.977238][    T1] QNX4 filesystem 0.2.3 registered.
[  187.979872][    T1] orangefs_debugfs_init: called with debug mask: :none: :0:
[  187.981449][    T1] orangefs_init: module version upstream loaded
[  187.983277][    T1] JFS: nTxBlock = 8192, nTxLock = 65536
[  188.000617][    T1] sysctl table check failed: fs/ocfs2/nm Not a file
[  188.001528][    T1] sysctl table check failed: fs/ocfs2/nm No proc_handler
[  188.002483][    T1] sysctl table check failed: fs/ocfs2/nm bogus .mode 0555
[  188.003437][    T1] CPU: 0 PID: 1 Comm: swapper Not tainted 5.16.0-11534-gc42ff46f97c1 #1 843f34bc11d03a69a557abb9c2a31a40f9711bc8
[  188.005020][    T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[  188.006289][    T1] Call Trace:
[  188.006805][    T1]  <TASK>
[ 188.007273][ T1] dump_stack_lvl (??:?) 
[ 188.007965][ T1] dump_stack (??:?) 
[ 188.008592][ T1] __register_sysctl_table (??:?) 
[ 188.009381][ T1] ? ocfs2_stack_glue_init (stackglue.c:?) 


To reproduce:

        # build kernel
	cd linux
	cp config-5.16.0-11534-gc42ff46f97c1 .config
	make HOSTCC=clang-14 CC=clang-14 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=clang-14 CC=clang-14 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


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

        # 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-5.16.0-11534-gc42ff46f97c1" of type "text/plain" (143956 bytes)

View attachment "job-script" of type "text/plain" (4664 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (14644 bytes)

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