BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 6321 Comm: syz.6.415 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 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+0xf8/0x160 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:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 seqcount_lockdep_reader_access include/linux/seqlock.h:102 [inline]
 ktime_get+0xe4/0x1dc kernel/time/timekeeping.c:846
 ktime_get_ns include/linux/timekeeping.h:154 [inline]
 bio_issue_init include/linux/blk_types.h:239 [inline]
 blkcg_bio_issue_init block/blk-cgroup.h:381 [inline]
 submit_bio_noacct_nocheck+0xd0/0x9ec block/blk-core.c:677
 submit_bio_noacct+0xcdc/0x16e0 block/blk-core.c:808
 submit_bio+0x29c/0x3d0 block/blk-core.c:853
 write_dev_flush fs/btrfs/disk-io.c:4222 [inline]
 barrier_all_devices fs/btrfs/disk-io.c:4272 [inline]
 write_all_supers+0x13e8/0x35a8 fs/btrfs/disk-io.c:4367
 btrfs_commit_transaction+0x19b4/0x29f0 fs/btrfs/transaction.c:2511
 btrfs_ioctl_subvol_setflags+0x41c/0x67c fs/btrfs/ioctl.c:2415
 btrfs_ioctl+0x274/0xbd0 fs/btrfs/ioctl.c:5511
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 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