BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 6822 Comm: syz.1.679 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3844 [inline]
 validate_chain kernel/locking/lockdep.c:3865 [inline]
 __lock_acquire+0x2618/0x7280 kernel/locking/lockdep.c:5171
 lock_acquire+0x210/0x63c kernel/locking/lockdep.c:5790
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb0 kernel/locking/spinlock.c:162
 pwq_adjust_max_active+0x14c/0x504 kernel/workqueue.c:3769
 link_pwq+0xf8/0x210 kernel/workqueue.c:3835
 numa_pwq_tbl_install kernel/workqueue.c:3927 [inline]
 apply_wqattrs_commit+0x270/0x4b8 kernel/workqueue.c:4044
 apply_workqueue_attrs_locked+0xd8/0x270 kernel/workqueue.c:4089
 apply_workqueue_attrs kernel/workqueue.c:4121 [inline]
 alloc_and_link_pwqs kernel/workqueue.c:4239 [inline]
 alloc_workqueue+0xa74/0xeec kernel/workqueue.c:4353
 ceph_osdc_init+0x4d0/0x78c net/ceph/osd_client.c:5214
 ceph_create_client+0x204/0x2d4 net/ceph/ceph_common.c:745
 create_fs_client fs/ceph/super.c:791 [inline]
 ceph_get_tree+0x19c/0x1134 fs/ceph/super.c:1228
 vfs_get_tree+0x90/0x278 fs/super.c:1584
 vfs_fsconfig_locked+0x1e0/0x374 fs/fsopen.c:241
 __do_sys_fsconfig fs/fsopen.c:448 [inline]
 __se_sys_fsconfig fs/fsopen.c:323 [inline]
 __arm64_sys_fsconfig+0x640/0x790 fs/fsopen.c:323
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589