BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 PID: 6465 Comm: syz.4.412 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
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_nested+0x5c/0x78 kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested kernel/sched/core.c:538 [inline]
 raw_spin_rq_lock kernel/sched/sched.h:1362 [inline]
 rq_lock kernel/sched/sched.h:1652 [inline]
 ttwu_queue kernel/sched/core.c:3903 [inline]
 try_to_wake_up+0x3f0/0xcb4 kernel/sched/core.c:4228
 wake_up_process+0x18/0x24 kernel/sched/core.c:4362
 wake_up_worker kernel/workqueue.c:859 [inline]
 insert_work+0x2a4/0x37c kernel/workqueue.c:1369
 __queue_work+0xd00/0x1280 kernel/workqueue.c:1520
 queue_work_on+0xc0/0x164 kernel/workqueue.c:1548
 queue_work include/linux/workqueue.h:515 [inline]
 loop_queue_work drivers/block/loop.c:893 [inline]
 loop_queue_rq+0x91c/0xa48 drivers/block/loop.c:1874
 __blk_mq_issue_directly block/blk-mq.c:2643 [inline]
 __blk_mq_try_issue_directly+0x3f8/0x63c block/blk-mq.c:2696
 blk_mq_request_issue_directly block/blk-mq.c:2730 [inline]
 blk_mq_plug_issue_direct+0x22c/0x54c block/blk-mq.c:2750
 blk_mq_flush_plug_list+0x5e4/0xa9c block/blk-mq.c:2851
 __blk_flush_plug+0x358/0x3d8 block/blk-core.c:1179
 blk_finish_plug+0x68/0x90 block/blk-core.c:1203
 _xfs_buf_ioapply+0x350/0x530 fs/xfs/xfs_buf.c:1598
 __xfs_buf_submit+0x2e8/0x804 fs/xfs/xfs_buf.c:1676
 xfs_buf_submit fs/xfs/xfs_buf.c:60 [inline]
 _xfs_buf_read fs/xfs/xfs_buf.c:757 [inline]
 xfs_buf_read_map+0x3b8/0xa04 fs/xfs/xfs_buf.c:821
 xfs_trans_read_buf_map+0x208/0xae8 fs/xfs/xfs_trans_buf.c:289
 xfs_trans_read_buf fs/xfs/xfs_trans.h:211 [inline]
 xfs_alloc_read_agfl+0x1a0/0x358 fs/xfs/libxfs/xfs_alloc.c:713
 xfs_alloc_fix_freelist+0x8a4/0x106c fs/xfs/libxfs/xfs_alloc.c:2751
 xfs_alloc_vextent+0xb44/0x1c00 fs/xfs/libxfs/xfs_alloc.c:3309
 xfs_bmap_btalloc+0xadc/0x182c fs/xfs/libxfs/xfs_bmap.c:3662
 xfs_bmapi_allocate+0x3fc/0xbfc fs/xfs/libxfs/xfs_bmap.c:-1
 xfs_bmapi_write+0x670/0xef8 fs/xfs/libxfs/xfs_bmap.c:4462
 xfs_da_grow_inode_int+0x284/0x758 fs/xfs/libxfs/xfs_da_btree.c:2175
 xfs_dir2_grow_inode+0x1f0/0x6a0 fs/xfs/libxfs/xfs_dir2.c:586
 xfs_dir2_sf_to_block+0x2d4/0x1400 fs/xfs/libxfs/xfs_dir2_block.c:1123
 xfs_dir2_sf_addname+0x5f4/0x1620 fs/xfs/libxfs/xfs_dir2_sf.c:420
 xfs_dir_createname+0x490/0x854 fs/xfs/libxfs/xfs_dir2.c:294
 xfs_create+0x7a0/0xd3c fs/xfs/xfs_inode.c:1047
 xfs_generic_create+0x2c4/0x8b8 fs/xfs/xfs_iops.c:200
 xfs_vn_create+0x44/0x58 fs/xfs/xfs_iops.c:276
 lookup_open fs/namei.c:3533 [inline]
 open_last_lookups fs/namei.c:3601 [inline]
 path_openat+0xda8/0x27a0 fs/namei.c:3831
 do_filp_open+0x198/0x38c fs/namei.c:3861
 do_sys_openat2+0x134/0x3fc fs/open.c:1320
 do_sys_open fs/open.c:1336 [inline]
 __do_sys_openat fs/open.c:1352 [inline]
 __se_sys_openat fs/open.c:1347 [inline]
 __arm64_sys_openat+0x11c/0x150 fs/open.c:1347
 __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:585
XFS (loop4): metadata I/O error in "xfs_btree_read_buf_block+0x18c/0x290" at daddr 0x14 len 4 error 74
XFS (loop4): Corruption of in-memory data (0x8) detected at xfs_defer_finish_noroll+0x16ec/0x1fd4 fs/xfs/libxfs/xfs_defer.c:580 (fs/xfs/libxfs/xfs_defer.c:580).  Shutting down filesystem.
XFS (loop4): Please unmount the filesystem and rectify the problem(s)