done
bcachefs (loop6): snapshots_read... done
bcachefs (loop6): check_allocations...
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 8609 Comm: syz.6.210 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5237
 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5868
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162
 remove_entity_load_avg kernel/sched/fair.c:4791 [inline]
 migrate_task_rq_fair+0xac/0x774 kernel/sched/fair.c:8553
 set_task_cpu+0x28c/0x8d0 kernel/sched/core.c:3365
 try_to_wake_up+0x3dc/0xe24 kernel/sched/core.c:4325
 wake_up_process+0x18/0x24 kernel/sched/core.c:4459
 kick_pool+0x3e0/0x58c kernel/workqueue.c:1283
 __queue_work+0xdbc/0x1210 kernel/workqueue.c:2340
 queue_work_on+0xdc/0x18c kernel/workqueue.c:2390
 queue_work include/linux/workqueue.h:669 [inline]
 loop_queue_work drivers/block/loop.c:862 [inline]
 loop_queue_rq+0x944/0xaa8 drivers/block/loop.c:1887
 __blk_mq_issue_directly block/blk-mq.c:2695 [inline]
 blk_mq_request_issue_directly+0x2c0/0x560 block/blk-mq.c:2782
 blk_mq_issue_direct+0x254/0x558 block/blk-mq.c:2803
 blk_mq_dispatch_queue_requests+0x568/0x674 block/blk-mq.c:2878
 blk_mq_flush_plug_list+0x370/0x488 block/blk-mq.c:2961
 __blk_flush_plug+0x330/0x408 block/blk-core.c:1220
 blk_finish_plug block/blk-core.c:1247 [inline]
 __submit_bio+0x3f4/0x4d8 block/blk-core.c:649
 __submit_bio_noacct_mq block/blk-core.c:722 [inline]
 submit_bio_noacct_nocheck+0x390/0xaac block/blk-core.c:751
 submit_bio_noacct+0xc94/0x177c block/blk-core.c:874
 submit_bio+0x3b4/0x550 block/blk-core.c:916
 write_one_super fs/bcachefs/super-io.c:1019 [inline]
 bch2_write_super+0x1e54/0x28dc fs/bcachefs/super-io.c:1177
 bch2_gc_mark_key+0x734/0x9b0 fs/bcachefs/btree_gc.c:680
 bch2_gc_btree fs/bcachefs/btree_gc.c:758 [inline]
 bch2_gc_btrees fs/bcachefs/btree_gc.c:792 [inline]
 bch2_check_allocations+0x1698/0x3c34 fs/bcachefs/btree_gc.c:1094
 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:484 [inline]
 __bch2_run_recovery_passes+0x2b8/0xd54 fs/bcachefs/recovery_passes.c:539
 bch2_run_recovery_passes+0x174/0x1f4 fs/bcachefs/recovery_passes.c:610
 bch2_fs_recovery+0x1c34/0x2fb4 fs/bcachefs/recovery.c:1016
 bch2_fs_start+0x940/0xbec fs/bcachefs/super.c:1213
 bch2_fs_get_tree+0x880/0x107c fs/bcachefs/fs.c:2488
 vfs_get_tree+0x90/0x28c fs/super.c:1815
 do_new_mount+0x278/0x7f4 fs/namespace.c:3808
 path_mount+0x5b4/0xde0 fs/namespace.c:4123
 do_mount fs/namespace.c:4136 [inline]
 __do_sys_mount fs/namespace.c:4347 [inline]
 __se_sys_mount fs/namespace.c:4324 [inline]
 __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4324
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
 done
bcachefs (loop6): going read-write
bcachefs (loop6): done starting filesystem
syzkaller0: entered promiscuous mode
syzkaller0: entered allmulticast mode