Hello,
kernel test robot noticed "BUG:spinlock_bad_magic_on_CPU" on:
commit: 18ce3c9e4c2d7cc1b7eaf1e8cc95be8e34209dac ("mm/zswap: global lru and shrinker shared by all zswap_pools")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
[test failed on linux-next/master 67908bf6954b7635d33760ff6dfc189fc26ccc89]
in testcase: boot
compiler: clang-17
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+----------------------------------------------------+------------+------------+
| | acc2918c08 | 18ce3c9e4c |
+----------------------------------------------------+------------+------------+
| BUG:spinlock_bad_magic_on_CPU | 0 | 12 |
+----------------------------------------------------+------------+------------+
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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202403051008.a8cf8a94-lkp@xxxxxxxxx
[ 88.645344][ T8] BUG: spinlock bad magic on CPU#0, kworker/0:1/8
[ 88.645699][ T8] lock: zswap+0xd0/0x110, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
[ 88.646351][ T8] CPU: 0 PID: 8 Comm: kworker/0:1 Tainted: G W TN 6.8.0-rc5-00353-g18ce3c9e4c2d #1
[ 88.646922][ T8] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 88.647458][ T8] Workqueue: cgroup_destroy css_killed_work_fn
[ 88.647785][ T8] Call Trace:
[ 88.648049][ T8] <TASK>
[ 88.648308][ T8] dump_stack_lvl (lib/dump_stack.c:107)
[ 88.648557][ T8] do_raw_spin_lock (kernel/locking/spinlock_debug.c:?)
[ 88.648807][ T8] zswap_memcg_offline_cleanup (mm/zswap.c:784)
[ 88.649104][ T8] mem_cgroup_css_offline (mm/memcontrol.c:5675)
[ 88.649382][ T8] ? __cfi_mem_cgroup_css_offline (mm/memcontrol.c:5654)
[ 88.649689][ T8] css_killed_work_fn (kernel/cgroup/cgroup.c:5523)
[ 88.650030][ T8] ? process_scheduled_works (kernel/workqueue.c:2608)
[ 88.650451][ T8] process_scheduled_works (kernel/workqueue.c:2638)
[ 88.650752][ T8] worker_thread (kernel/workqueue.c:?)
[ 88.651006][ T8] ? __cfi_worker_thread (kernel/workqueue.c:2733)
[ 88.651278][ T8] kthread (kernel/kthread.c:390)
[ 88.651498][ T8] ? __cfi_kthread (kernel/kthread.c:341)
[ 88.651745][ T8] ret_from_fork (arch/x86/kernel/process.c:153)
[ 88.652030][ T8] ? __cfi_kthread (kernel/kthread.c:341)
[ 88.652427][ T8] ret_from_fork_asm (arch/x86/entry/entry_64.S:250)
[ 88.652682][ T8] </TASK>
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240305/202403051008.a8cf8a94-lkp@xxxxxxxxx
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
