el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BTRFS error (device loop1): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7452 at fs/btrfs/extent-tree.c:2158 btrfs_run_delayed_refs+0x3f4/0x46c fs/btrfs/extent-tree.c:2158 Modules linked in: CPU: 1 PID: 7452 Comm: syz.1.645 Not tainted 5.15.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_run_delayed_refs+0x3f4/0x46c fs/btrfs/extent-tree.c:2158 lr : btrfs_run_delayed_refs+0x3f4/0x46c fs/btrfs/extent-tree.c:2158 sp : ffff80001f6677d0 x29: ffff80001f6677e0 x28: ffff0000e6f83000 x27: dfff800000000000 x26: ffff0000e6f83024 x25: ffff0000f1430000 x24: 1fffe0001b867a79 x23: 1fffe0001b867a79 x22: ffff0000dc33d3c8 x21: 00000000fffffff4 x20: 0000000000000051 x19: ffff0000dc33d370 x18: 0000000000000001 x17: 0000000000000000 x16: ffff80001119ef40 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : 1f27a1ade5f2b200 x8 : 1f27a1ade5f2b200 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f6670b8 x4 : ffff80001422f280 x3 : ffff800008503f9c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 Call trace: btrfs_run_delayed_refs+0x3f4/0x46c fs/btrfs/extent-tree.c:2158 btrfs_commit_transaction+0x1b8/0x3044 fs/btrfs/transaction.c:2168 btrfs_ioctl_set_fslabel+0x2c8/0x384 fs/btrfs/ioctl.c:4706 btrfs_ioctl+0x5f0/0xb38 fs/btrfs/ioctl.c:4933 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 82708 hardirqs last enabled at (82707): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (82708): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (82694): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (82694): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:586 softirqs last disabled at (82687): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (82687): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (82687): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (82687): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:641 ---[ end trace b878f4b30700bc30 ]--- BTRFS: error (device loop1) in btrfs_run_delayed_refs:2158: errno=-12 Out of memory BTRFS info (device loop1): forced readonly