BTRFS warning (de BTRFS warning (device loop9): Skipping commit of aborted transaction. ------------[ cut here ]------------ BTRFS: Transaction aborted (error -2) WARNING: CPU: 0 PID: 10679 at fs/btrfs/transaction.c:2021 cleanup_transaction+0x694/0x73c fs/btrfs/transaction.c:2021 Modules linked in: CPU: 0 UID: 0 PID: 10679 Comm: syz.9.1030 Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : cleanup_transaction+0x694/0x73c fs/btrfs/transaction.c:2021 lr : cleanup_transaction+0x694/0x73c fs/btrfs/transaction.c:2021 sp : ffff80009bdf7640 x29: ffff80009bdf7720 x28: dfff800000000000 x27: ffff7000137beed0 x26: 0000000000000000 x25: 0000000000000000 x24: ffff0000c1595500 x23: 00000000fffffffe x22: 1fffe000182b2aa0 x21: ffff0000c8d6e000 x20: ffff0000c78d4000 x19: ffff0000c15954a0 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ae69508 x15: ffff700011ee0158 x14: 1ffff00011ee0158 x13: 0000000000000004 x12: ffffffffffffffff x11: 0000000000080000 x10: 0000000000046736 x9 : 1e9e5e3093df6000 x8 : 1e9e5e3093df6000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009bdf6f98 x4 : ffff80008f776bc0 x3 : ffff80008054bdfc x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: cleanup_transaction+0x694/0x73c fs/btrfs/transaction.c:2021 (P) btrfs_commit_transaction+0x2160/0x2b44 fs/btrfs/transaction.c:2612 create_snapshot+0x4f4/0x834 fs/btrfs/ioctl.c:782 btrfs_mksubvol+0x44c/0x59c fs/btrfs/ioctl.c:936 btrfs_mksnapshot+0xc0/0x150 fs/btrfs/ioctl.c:980 __btrfs_ioctl_snap_create+0x310/0x3f0 fs/btrfs/ioctl.c:1245 btrfs_ioctl_snap_create_v2+0x1b4/0x308 fs/btrfs/ioctl.c:1326 btrfs_ioctl+0xa5c/0xc3c fs/btrfs/ioctl.c:-1 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:893 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 1870 hardirqs last enabled at (1869): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (1869): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (1870): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (1850): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (1850): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (1507): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- BTRFS: error (device loop9 state A) in cleanup_transaction:2021: errno=-2 No such entry BTRFS info (device loop9 state EA): forced readonly BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 UID: 0 PID: 10679 Comm: syz.9.1030 Tainted: G W 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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:3858 [inline] validate_chain kernel/locking/lockdep.c:3879 [inline] __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5240 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5871 fs_reclaim_acquire+0xb8/0x118 mm/page_alloc.c:4062 might_alloc include/linux/sched/mm.h:318 [inline] slab_pre_alloc_hook mm/slub.c:4099 [inline] slab_alloc_node mm/slub.c:4177 [inline] kmem_cache_alloc_noprof+0x58/0x3e8 mm/slub.c:4204 alloc_extent_state+0x38/0x374 fs/btrfs/extent-io-tree.c:153 btrfs_clear_extent_bit_changeset+0x22c/0xdb8 fs/btrfs/extent-io-tree.c:646 btrfs_clear_extent_bit fs/btrfs/extent-io-tree.h:184 [inline] btrfs_clear_extent_dirty fs/btrfs/extent-io-tree.h:208 [inline] btrfs_destroy_pinned_extent fs/btrfs/disk-io.c:4682 [inline] btrfs_cleanup_one_transaction+0x484/0x660 fs/btrfs/disk-io.c:4807 cleanup_transaction+0x460/0x73c fs/btrfs/transaction.c:2059 btrfs_commit_transaction+0x2160/0x2b44 fs/btrfs/transaction.c:2612 create_snapshot+0x4f4/0x834 fs/btrfs/ioctl.c:782 btrfs_mksubvol+0x44c/0x59c fs/btrfs/ioctl.c:936 btrfs_mksnapshot+0xc0/0x150 fs/btrfs/ioctl.c:980 __btrfs_ioctl_snap_create+0x310/0x3f0 fs/btrfs/ioctl.c:1245 btrfs_ioctl_snap_create_v2+0x1b4/0x308 fs/btrfs/ioctl.c:1326 btrfs_ioctl+0xa5c/0xc3c fs/btrfs/ioctl.c:-1 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:893 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596