BTRFS info (device loop2): enabling ssd optimizations ------------[ cut here ]------------ WARNING: CPU: 0 PID: 12431 at fs/btrfs/tree-log.c:3081 btrfs_sync_log+0xbb4/0x1018 fs/btrfs/tree-log.c:3081 Modules linked in: CPU: 0 PID: 12431 Comm: syz-executor.2 Not tainted 6.1.0-rc2-syzkaller-154433-g247f34f7b803 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_sync_log+0xbb4/0x1018 fs/btrfs/tree-log.c:3081 lr : btrfs_sync_log+0xbb4/0x1018 fs/btrfs/tree-log.c:3081 sp : ffff800020fe39c0 x29: ffff800020fe3c80 x28: 0000000000000000 x27: ffff00011d104000 x26: 0000000000000000 x25: 00000000fffffff4 x24: ffff800020fe3a58 x23: ffff000119a79208 x22: ffff00011abe5348 x21: 0000000000000000 x20: ffff00011cfce348 x19: ffff00011cfce000 x18: 0000000000000217 x17: ffff80000c0cd83c x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000002 x13: 2932312d20726f72 x12: 0000000000040000 x11: 000000000000312e x10: ffff800012f1d000 x9 : a117768ad8ef0c00 x8 : a117768ad8ef0c00 x7 : 69746361736e6172 x6 : ffff80000c0903b4 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000026 Call trace: btrfs_sync_log+0xbb4/0x1018 fs/btrfs/tree-log.c:3081 btrfs_sync_file+0x49c/0x688 fs/btrfs/file.c:2242 vfs_fsync_range fs/sync.c:188 [inline] vfs_fsync fs/sync.c:202 [inline] do_fsync fs/sync.c:212 [inline] __do_sys_fdatasync fs/sync.c:225 [inline] __se_sys_fdatasync fs/sync.c:223 [inline] __arm64_sys_fdatasync+0x60/0xb8 fs/sync.c:223 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 0 hardirqs last enabled at (0): [<0000000000000000>] 0x0 hardirqs last disabled at (0): [] copy_process+0x928/0x16ec kernel/fork.c:2197 softirqs last enabled at (0): [] copy_process+0x938/0x16ec kernel/fork.c:2198 softirqs last disabled at (0): [<0000000000000000>] 0x0 ---[ end trace 0000000000000000 ]--- BTRFS: error (device loop2: state A) in btrfs_sync_log:3081: errno=-12 Out of memory BTRFS info (device loop2: state EA): forced readonly