loop6: detected capacity change from 0 to 2048
NILFS error (device loop6): nilfs_bmap_lookup_contig: broken bmap (inode number=12)
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 20720 Comm: syz.6.6915 Not tainted 6.1.119-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b88/0x7680 kernel/locking/lockdep.c:5049
 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb4 kernel/locking/spinlock.c:162
 down_trylock+0x28/0xd8 kernel/locking/semaphore.c:139
 __down_trylock_console_sem+0x80/0x144 kernel/printk/printk.c:243
 console_trylock+0xec/0x1e0 kernel/printk/printk.c:2650
 console_trylock_spinning+0x1c/0x300 kernel/printk/printk.c:1896
 vprintk_emit+0x134/0x2e8 kernel/printk/printk.c:2302
 vprintk_default+0xa0/0xe4 kernel/printk/printk.c:2318
 vprintk+0x200/0x2d4 kernel/printk/printk_safe.c:45
 _printk+0xdc/0x128 kernel/printk/printk.c:2328
 __nilfs_error+0x130/0x5b0 fs/nilfs2/super.c:131
 nilfs_bmap_convert_error fs/nilfs2/bmap.c:35 [inline]
 nilfs_bmap_lookup_contig+0x11c/0x148 fs/nilfs2/bmap.c:103
 nilfs_get_block+0x1bc/0x7ec fs/nilfs2/inode.c:85
 do_mpage_readpage+0x5d8/0x1748 fs/mpage.c:208
 mpage_read_folio+0xec/0x1b4 fs/mpage.c:379
 nilfs_read_folio+0x28/0x38 fs/nilfs2/inode.c:150
 filemap_read_folio+0x14c/0x39c mm/filemap.c:2489
 do_read_cache_folio+0x24c/0x544 mm/filemap.c:3626
 do_read_cache_page mm/filemap.c:3668 [inline]
 read_cache_page+0x6c/0x180 mm/filemap.c:3677
 read_mapping_page include/linux/pagemap.h:791 [inline]
 nilfs_get_page+0x5c/0x1b0 fs/nilfs2/dir.c:199
 nilfs_empty_dir+0x104/0x6e8 fs/nilfs2/dir.c:666
 nilfs_rmdir+0x100/0x218 fs/nilfs2/namei.c:337
 vfs_rmdir+0x308/0x43c fs/namei.c:4191
 do_rmdir+0x2e0/0x720 fs/namei.c:4252
 __do_sys_unlinkat fs/namei.c:4432 [inline]
 __se_sys_unlinkat fs/namei.c:4426 [inline]
 __arm64_sys_unlinkat+0xe0/0xfc fs/namei.c:4426
 __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+0x58/0x168 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
Remounting filesystem read-only
NILFS error (device loop6): nilfs_bmap_lookup_contig: broken bmap (inode number=12)