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 | 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= modules_install cd 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 -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