el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x5c/0x140 arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 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
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4371 at fs/btrfs/tree-log.c:3224 btrfs_sync_log+0x13d4/0x1e7c fs/btrfs/tree-log.c:3224
Modules linked in:
CPU: 1 PID: 4371 Comm: syz-executor.0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : btrfs_sync_log+0x13d4/0x1e7c fs/btrfs/tree-log.c:3224
lr : btrfs_sync_log+0x13d4/0x1e7c fs/btrfs/tree-log.c:3224
sp : ffff80001f867400
x29: ffff80001f867800 x28: 00000000fffffff4 x27: dfff800000000000
x26: ffff80001f8674c0 x25: ffff0000ded3d160 x24: 1fffe0001837349d
x23: ffff0000d9c9c4e0 x22: ffff0000c1b9c000 x21: ffff80001f867748
x20: ffff0000de70e000 x19: ffff0000ded3d1b8 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000
x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000
x11: ff80800008300a38 x10: 0000000000000000 x9 : dfbf1f8a37510300
x8 : dfbf1f8a37510300 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001f866d18 x4 : ffff80001447f520 x3 : ffff80000850fcd0
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026
Call trace:
 btrfs_sync_log+0x13d4/0x1e7c fs/btrfs/tree-log.c:3224
 btrfs_sync_file+0xa2c/0xf2c fs/btrfs/file.c:2371
 vfs_fsync_range+0x168/0x188 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2990 [inline]
 btrfs_file_write_iter+0xa58/0xc18 fs/btrfs/file.c:2099
 call_write_iter include/linux/fs.h:2173 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x590/0xa64 fs/read_write.c:594
 ksys_write+0x12c/0x228 fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:656
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x28c arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x5c/0x140 arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 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: 83168
hardirqs last  enabled at (83167): [<ffff8000082feda8>] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:257
hardirqs last disabled at (83168): [<ffff80001135b320>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (83134): [<ffff8000081a2b54>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (83134): [<ffff8000081a2b54>] handle_softirqs+0xa70/0xc14 kernel/softirq.c:604
softirqs last disabled at (83017): [<ffff8000081a315c>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (83017): [<ffff8000081a315c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (83017): [<ffff8000081a315c>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (83017): [<ffff8000081a315c>] __irq_exit_rcu+0x240/0x434 kernel/softirq.c:659
---[ end trace 84f9bdcceacb1671 ]---
BTRFS: error (device loop0) in btrfs_sync_log:3224: errno=-12 Out of memory
BTRFS info (device loop0): forced readonly