BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 62 Comm: kworker/u8:4 Not tainted 6.14.0-rc7-syzkaller-g4701f33a1070 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: btrfs-qgroup-rescan btrfs_work_helper Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C) __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 lookup_chain_cache_add kernel/locking/lockdep.c:3853 [inline] validate_chain kernel/locking/lockdep.c:3874 [inline] __lock_acquire+0x2070/0x7904 kernel/locking/lockdep.c:5228 reacquire_held_locks+0x234/0x454 kernel/locking/lockdep.c:5376 __lock_release kernel/locking/lockdep.c:5565 [inline] lock_release+0x358/0x9e4 kernel/locking/lockdep.c:5872 up_write+0x88/0x760 kernel/locking/rwsem.c:1629 btrfs_tree_unlock+0xdc/0x2e0 fs/btrfs/locking.c:201 btrfs_force_cow_block+0xd2c/0x1c80 fs/btrfs/ctree.c:593 btrfs_cow_block+0x2ec/0x7cc fs/btrfs/ctree.c:688 btrfs_search_slot+0xa74/0x272c fs/btrfs/ctree.c:2088 update_qgroup_status_item+0x13c/0x31c fs/btrfs/qgroup.c:922 btrfs_qgroup_rescan_worker+0x1440/0x163c fs/btrfs/qgroup.c:3895 btrfs_work_helper+0x384/0xd60 fs/btrfs/async-thread.c:314 process_one_work+0x810/0x1638 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3400 kthread+0x5f8/0x744 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared)