linux-kernel - [linux-next:master] [sysctl] 7eec88986d: sysctl_table_check

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Message-ID: <202305241701.115a6cf4-yujie.liu@intel.com>
Date:   Thu, 25 May 2023 01:55:45 +0800
From:   kernel test robot <yujie.liu@...el.com>
To:     Joel Granados <j.granados@...sung.com>
CC:     <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Luis Chamberlain <mcgrof@...nel.org>,
        <linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [linux-next:master] [sysctl] 7eec88986d: sysctl_table_check_failed

Hello,

kernel test robot noticed "sysctl_table_check_failed" on:

commit: 7eec88986dce2d85012fbe516def7a2d7d77735c ("sysctl: Refactor base paths registrations")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

[test failed on linux-next/master 9f925874281f7e8855855d6210d6e29d844e4307]

in testcase: boot

compiler: gcc-11
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

(please refer to attached dmesg/kmsg for entire log/backtrace)


If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <yujie.liu@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202305241701.115a6cf4-yujie.liu@intel.com


[    2.562979][    T0] Calibrating delay loop (skipped) preset value.. 4190.15 BogoMIPS (lpj=20950780)
[    2.564563][    T0] pid_max: default: 32768 minimum: 301
[    2.565720][    T0] LSM: initializing lsm=capability,integrity
[    2.566876][    T0] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    2.568269][    T0] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    2.570451][    T0] sysctl table check failed: kernel/usermodehelper Not a file
[    2.572987][    T0] sysctl table check failed: kernel/usermodehelper No proc_handler
[    2.574253][    T0] sysctl table check failed: kernel/usermodehelper bogus .mode 0555
[    2.575503][    T0] sysctl table check failed: kernel/keys Not a file
[    2.576499][    T0] sysctl table check failed: kernel/keys No proc_handler
[    2.577552][    T0] sysctl table check failed: kernel/keys bogus .mode 0555
[    2.578666][    T0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.4.0-rc2-00007-g7eec88986dce #1
[    2.579977][    T0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[    2.581597][    T0] Call Trace:
[ 2.582202][ T0] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 4)) 
[ 2.582968][ T0] dump_stack (lib/dump_stack.c:114) 
[ 2.582978][ T0] __register_sysctl_table (fs/proc/proc_sysctl.c:1411) 
[ 2.582978][ T0] register_sysctl (fs/proc/proc_sysctl.c:1434) 
[ 2.582978][ T0] __register_sysctl_init (fs/proc/proc_sysctl.c:1462) 
[ 2.582978][ T0] sysctl_init_bases (kernel/sysctl.c:2354)
[ 2.582978][ T0] proc_sys_init (fs/proc/proc_sysctl.c:1761)
[ 2.582978][ T0] proc_root_init (fs/proc/root.c:310)
[ 2.582978][ T0] start_kernel (init/main.c:1075)
[ 2.582978][ T0] i386_start_kernel (arch/x86/kernel/head32.c:73)
[ 2.582978][ T0] startup_32_smp (arch/x86/kernel/head_32.S:319)
[    2.582986][    T0] failed when register_sysctl kern_table to kernel


To reproduce:

        # build kernel
	cd linux
	cp config-6.4.0-rc2-00007-g7eec88986dce .config
	make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 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.


-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

View attachment "config-6.4.0-rc2-00007-g7eec88986dce" of type "text/plain" (133445 bytes)

View attachment "job-script" of type "text/plain" (4735 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (31892 bytes)