BTRFS info (device loop8): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d
BTRFS info (device loop8): using sha256 (sha256-lib) checksum algorithm
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 8792 Comm: syz.8.284 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
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+0xf9c/0x30a4 kernel/locking/lockdep.c:5237
 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5868
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:154
 rcu_note_context_switch+0x288/0x1064 kernel/rcu/tree_plugin.h:338
 __schedule+0x324/0x2864 kernel/sched/core.c:6846
 preempt_schedule_irq+0x80/0x188 kernel/sched/core.c:7288
 raw_irqentry_exit_cond_resched+0x30/0x44 kernel/entry/common.c:168
 irqentry_exit+0xd4/0x108 kernel/entry/common.c:211
 __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:68 [inline]
 exit_to_kernel_mode+0x10/0x1c arch/arm64/kernel/entry-common.c:75
 __el1_irq arch/arm64/kernel/entry-common.c:522 [inline]
 el1_interrupt+0x4c/0x60 arch/arm64/kernel/entry-common.c:532
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:537
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592
 arch_counter_get_cntvct_mem+0x460/0x1044 __efistub_vsprintf.c:-1 (P)
 lock_is_held include/linux/lockdep.h:249 [inline]
 rcu_read_lock_held+0x34/0x50 kernel/rcu/update.c:351
 kernfs_root+0xf0/0x240 fs/kernfs/kernfs-internal.h:76
 kernfs_root_is_locked fs/kernfs/kernfs-internal.h:109 [inline]
 kernfs_rcu_name fs/kernfs/kernfs-internal.h:119 [inline]
 kernfs_add_one+0x158/0x60c fs/kernfs/dir.c:808
 __kernfs_create_file+0x218/0x2d4 fs/kernfs/file.c:1086
 sysfs_add_file_mode_ns+0x1d8/0x294 fs/sysfs/file.c:319
 create_files fs/sysfs/group.c:76 [inline]
 internal_create_group+0x5c0/0xe28 fs/sysfs/group.c:183
 internal_create_groups fs/sysfs/group.c:223 [inline]
 sysfs_create_groups+0x60/0x134 fs/sysfs/group.c:249
 create_dir lib/kobject.c:78 [inline]
 kobject_add_internal+0x5e4/0xb20 lib/kobject.c:240
 kobject_add_varg lib/kobject.c:374 [inline]
 kobject_init_and_add+0x118/0x17c lib/kobject.c:457
 btrfs_sysfs_add_space_info_type+0x1d4/0x294 fs/btrfs/sysfs.c:1985
 create_space_info+0x13c/0x268 fs/btrfs/space-info.c:311
 btrfs_init_space_info+0x244/0x2c8 fs/btrfs/space-info.c:-1
 open_ctree+0x1c84/0x32c4 fs/btrfs/disk-io.c:3550
 btrfs_fill_super fs/btrfs/super.c:980 [inline]
 btrfs_get_tree_super fs/btrfs/super.c:1943 [inline]
 btrfs_get_tree_subvol fs/btrfs/super.c:2080 [inline]
 btrfs_get_tree+0xd5c/0x159c fs/btrfs/super.c:2114
 vfs_get_tree+0x90/0x28c fs/super.c:1815
 do_new_mount+0x278/0x7f4 fs/namespace.c:3808
 path_mount+0x5b4/0xde0 fs/namespace.c:4123
 do_mount fs/namespace.c:4136 [inline]
 __do_sys_mount fs/namespace.c:4347 [inline]
 __se_sys_mount fs/namespace.c:4324 [inline]
 __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4324
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
BTRFS info (device loop8): rebuilding free space tree
BTRFS info (device loop8): disabling free space tree
BTRFS info (device loop8): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
BTRFS info (device loop8): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
BTRFS info (device loop8): enabling ssd optimizations
BTRFS info (device loop8): force clearing of disk cache
BTRFS info (device loop8): enabling auto defrag
BTRFS info (device loop8): doing ref verification
BTRFS info (device loop8): max_inline set to 4096