set_capacity_and_notify: 10 callbacks suppressed
loop2: detected capacity change from 0 to 64
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 11145 Comm: syz.2.2245 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
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:3844 [inline]
 validate_chain kernel/locking/lockdep.c:3865 [inline]
 __lock_acquire+0x2618/0x7280 kernel/locking/lockdep.c:5171
 lock_acquire+0x210/0x63c kernel/locking/lockdep.c:5790
 local_lock_acquire+0x44/0x14c include/linux/local_lock_internal.h:29
 consume_stock mm/memcontrol.c:2235 [inline]
 try_charge_memcg+0x1a8/0x1390 mm/memcontrol.c:2645
 try_charge mm/memcontrol.c:2826 [inline]
 charge_memcg+0xa4/0x1f0 mm/memcontrol.c:6929
 __mem_cgroup_charge+0x38/0xa8 mm/memcontrol.c:6950
 mem_cgroup_charge include/linux/memcontrol.h:672 [inline]
 __filemap_add_folio+0x85c/0xfbc mm/filemap.c:854
 filemap_add_folio+0xb0/0x20c mm/filemap.c:962
 __filemap_get_folio+0x6f8/0xaa8 mm/filemap.c:2004
 pagecache_get_page+0x3c/0x16c mm/folio-compat.c:110
 find_or_create_page include/linux/pagemap.h:648 [inline]
 grow_dev_page fs/buffer.c:946 [inline]
 grow_buffers fs/buffer.c:1011 [inline]
 __getblk_slow fs/buffer.c:1038 [inline]
 __getblk_gfp+0x1c4/0x7ec fs/buffer.c:1333
 __bread_gfp+0x3c/0x2e4 fs/buffer.c:1367
 sb_bread include/linux/buffer_head.h:338 [inline]
 bfs_find_entry+0x18c/0x3a0 fs/bfs/dir.c:337
 bfs_lookup+0xd8/0x1a0 fs/bfs/dir.c:137
 lookup_open fs/namei.c:3511 [inline]
 open_last_lookups fs/namei.c:3601 [inline]
 path_openat+0xc74/0x27a0 fs/namei.c:3831
 do_filp_open+0x198/0x38c fs/namei.c:3861
 do_sys_openat2+0x134/0x3fc fs/open.c:1320
 do_sys_open fs/open.c:1336 [inline]
 __do_sys_openat fs/open.c:1352 [inline]
 __se_sys_openat fs/open.c:1347 [inline]
 __arm64_sys_openat+0x11c/0x150 fs/open.c:1347
 __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+0x58/0x12c 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