F2FS-fs (loop1): Test dummy encryption mode enabled
F2FS-fs (loop1): invalid crc value
F2FS-fs (loop1): Found nat_bits in checkpoint
F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 9239 Comm: syz.1.879 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
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:3777 [inline]
 validate_chain kernel/locking/lockdep.c:3798 [inline]
 __lock_acquire+0x1864/0x6634 kernel/locking/lockdep.c:5063
 lock_acquire+0x20c/0x638 kernel/locking/lockdep.c:5676
 fs_reclaim_acquire+0xc4/0x124 mm/page_alloc.c:4766
 might_alloc include/linux/sched/mm.h:271 [inline]
 mempool_alloc+0xc0/0x3e0 mm/mempool.c:402
 bio_alloc_bioset+0x388/0xf24 block/bio.c:521
 __bio_alloc+0x32c/0x5e4 fs/f2fs/data.c:453
 f2fs_submit_page_write+0xf0c/0x1478 fs/f2fs/data.c:1040
 do_write_page+0x328/0x5d0 fs/f2fs/segment.c:3380
 f2fs_outplace_write_data+0xc8/0x1a4 fs/f2fs/segment.c:3437
 f2fs_do_write_data_page+0xb8c/0x1060 fs/f2fs/data.c:2806
 f2fs_write_single_data_page+0x650/0x11fc fs/f2fs/data.c:2898
 f2fs_write_cache_pages fs/f2fs/data.c:3217 [inline]
 __f2fs_write_data_pages fs/f2fs/data.c:3388 [inline]
 f2fs_write_data_pages+0x1698/0x27ec fs/f2fs/data.c:3417
 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491
 filemap_fdatawrite_wbc+0x124/0x174 mm/filemap.c:388
 __filemap_fdatawrite_range mm/filemap.c:421 [inline]
 __filemap_fdatawrite mm/filemap.c:427 [inline]
 filemap_fdatawrite+0xd0/0x12c mm/filemap.c:432
 f2fs_sync_dirty_inodes+0x2c0/0x7f8 fs/f2fs/checkpoint.c:1127
 block_operations fs/f2fs/checkpoint.c:1265 [inline]
 f2fs_write_checkpoint+0x88c/0x17a0 fs/f2fs/checkpoint.c:1670
 f2fs_issue_checkpoint+0x25c/0x39c fs/f2fs/checkpoint.c:1877
 f2fs_sync_fs+0x1dc/0x4d8 fs/f2fs/super.c:1712
 f2fs_symlink+0x5b8/0x6d8 fs/f2fs/namei.c:670
 vfs_symlink+0x238/0x3b0 fs/namei.c:4479
 do_symlinkat+0x178/0x35c fs/namei.c:4508
 __do_sys_symlinkat fs/namei.c:4525 [inline]
 __se_sys_symlinkat fs/namei.c:4522 [inline]
 __arm64_sys_symlinkat+0xa4/0xbc fs/namei.c:4522
 __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+0x58/0x128 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