[rppt:kmem_cache_args] [slab] 0e7b6c407b: Kernel_panic-not_syncing:__kmem_cache_create:Failed_to_create_slab'dentry'.Error

[rppt:kmem_cache_args] [slab] 0e7b6c407b: Kernel_panic-not_syncing:__kmem_cache_create:Failed_to_create_slab'dentry'.Error

[kernel test robot]

Hello,

kernel test robot noticed "Kernel_panic-not_syncing:__kmem_cache_create:Failed_to_create_slab'dentry'.Error" on:

commit: 0e7b6c407b3de4e1414db4caae9f27a73e205e73 ("slab: port KMEM_CACHE_USERCOPY() to struct kmem_cache_args")
https://git.kernel.org/cgit/linux/kernel/git/rppt/linux.git kmem_cache_args

in testcase: boot

compiler: clang-18
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

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


+----------------------------------------------------------------------------------+------------+------------+
|                                                                                  | 44b4217834 | 0e7b6c407b |
+----------------------------------------------------------------------------------+------------+------------+
| boot_successes                                                                   | 6          | 0          |
| boot_failures                                                                    | 0          | 9          |
| Kernel_panic-not_syncing:__kmem_cache_create:Failed_to_create_slab'dentry'.Error | 0          | 9          |
+----------------------------------------------------------------------------------+------------+------------+


If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202409062147.10d5e860-oliver.sang@intel.com


[    0.738866][    T0] Freeing SMP alternatives memory: 56K
[    0.740773][    T0] pid_max: default: 32768 minimum: 301
[    0.744036][    T0] LSM: initializing lsm=capability,yama,apparmor,ima,evm
[    0.746097][    T0] Yama: becoming mindful.
[    0.747822][    T0] AppArmor: AppArmor initialized
[    0.749939][    T0] Kernel panic - not syncing: __kmem_cache_create: Failed to create slab 'dentry'. Error -22
[    0.750760][    T0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.11.0-rc4-00014-g0e7b6c407b3d #1
[    0.750760][    T0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[    0.750760][    T0] Call Trace:
[    0.750760][    T0]  <TASK>
[ 0.750760][ T0] dump_stack_lvl (kbuild/src/consumer/lib/dump_stack.c:121) 
[ 0.750760][ T0] panic (kbuild/src/consumer/kernel/panic.c:288) 
[ 0.750760][ T0] __kmem_cache_create (kbuild/src/consumer/mm/slab_common.c:320) 
[ 0.750760][ T0] dcache_init (kbuild/src/consumer/fs/dcache.c:3178) 


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240906/202409062147.10d5e860-oliver.sang@intel.com



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