EXT4-fs: Ignoring removed i_version option
EXT4-fs (loop9): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 9567 Comm: syz.9.994 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
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+0xfdc/0x2ebc kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x364 kernel/locking/lockdep.c:5868
 __raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline]
 _raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:158
 rcu_preempt_deferred_qs_irqrestore+0x1a8/0xc50 kernel/rcu/tree_plugin.h:533
 rcu_read_unlock_special+0x2a4/0x39c kernel/rcu/tree_plugin.h:772
 __rcu_read_unlock+0xa4/0x10c kernel/rcu/tree_plugin.h:438
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 blk_mq_dispatch_queue_requests+0x664/0x6d4 block/blk-mq.c:2908
 blk_mq_flush_plug_list+0x37c/0x494 block/blk-mq.c:2991
 __blk_flush_plug+0x364/0x440 block/blk-core.c:1230
 blk_finish_plug+0x68/0x90 block/blk-core.c:1257
 ext4_do_writepages+0x364c/0x3bc0 fs/ext4/inode.c:3003
 ext4_writepages+0x198/0x2dc fs/ext4/inode.c:3042
 do_writepages+0x284/0x47c mm/page-writeback.c:2571
 filemap_writeback+0x230/0x2bc mm/filemap.c:388
 filemap_fdatawrite_range mm/filemap.c:413 [inline]
 filemap_write_and_wait_range+0x90/0x114 mm/filemap.c:685
 filemap_write_and_wait include/linux/pagemap.h:65 [inline]
 ext4_end_enable_verity+0x21c/0x520 fs/ext4/verity.c:219
 enable_verity+0xd2c/0x15b0 fs/verity/enable.c:294
 fsverity_ioctl_enable+0x3a0/0x410 fs/verity/enable.c:386
 __ext4_ioctl fs/ext4/ioctl.c:1883 [inline]
 ext4_ioctl+0x1614/0x4280 fs/ext4/ioctl.c:1922
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594