BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 7035 Comm: syz.7.421 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
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
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 xfs_extent_busy_trim+0x64/0x848 fs/xfs/xfs_extent_busy.c:335
 xfs_alloc_compute_aligned+0xac/0x2e8 fs/xfs/libxfs/xfs_alloc.c:300
 xfs_alloc_cur_check+0x184/0xc18 fs/xfs/libxfs/xfs_alloc.c:867
 xfs_alloc_walk_iter+0xec/0x328 fs/xfs/libxfs/xfs_alloc.c:1349
 xfs_alloc_ag_vextent_lastblock+0x2b8/0x740 fs/xfs/libxfs/xfs_alloc.c:1548
 xfs_alloc_ag_vextent_near+0x628/0x1214 fs/xfs/libxfs/xfs_alloc.c:1625
 xfs_alloc_ag_vextent+0xac/0x7d0 fs/xfs/libxfs/xfs_alloc.c:1164
 xfs_alloc_vextent+0x11e8/0x1bcc fs/xfs/libxfs/xfs_alloc.c:3318
 xfs_bmap_btalloc+0xa90/0x17c0 fs/xfs/libxfs/xfs_bmap.c:3662
 xfs_bmapi_allocate+0x558/0xbcc fs/xfs/libxfs/xfs_bmap.c:-1
 xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4639 [inline]
 xfs_bmapi_convert_delalloc+0x668/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698
 xfs_map_blocks+0x78c/0x127c fs/xfs/xfs_aops.c:352
 iomap_writepage_map fs/iomap/buffered-io.c:1619 [inline]
 iomap_do_writepage+0x7b0/0x21f8 fs/iomap/buffered-io.c:1782
 write_cache_pages+0x73c/0xdd4 mm/page-writeback.c:2382
 iomap_writepages+0x6c/0x1f4 fs/iomap/buffered-io.c:1799
 xfs_vm_writepages+0x130/0x194 fs/xfs/xfs_aops.c:477
 do_writepages+0x2c0/0x4fc mm/page-writeback.c:2491
 filemap_fdatawrite_wbc+0x124/0x174 mm/filemap.c:388
 __filemap_fdatawrite_range mm/filemap.c:421 [inline]
 file_write_and_wait_range+0x110/0x1d8 mm/filemap.c:774
 xfs_file_fsync+0x1ac/0x944 fs/xfs/xfs_file.c:144
 vfs_fsync_range+0x168/0x188 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2962 [inline]
 xfs_file_buffered_write+0x910/0xa54 fs/xfs/xfs_file.c:794
 xfs_file_write_iter+0x2b0/0x5fc fs/xfs/xfs_file.c:832
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x530/0x91c fs/read_write.c:861
 vfs_writev fs/read_write.c:934 [inline]
 do_pwritev+0x1c8/0x2fc fs/read_write.c:1031
 __do_sys_pwritev2 fs/read_write.c:1090 [inline]
 __se_sys_pwritev2 fs/read_write.c:1081 [inline]
 __arm64_sys_pwritev2+0xd4/0x108 fs/read_write.c:1081
 __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