BTRFS info (device loop0): has skinny extents
BTRFS: device fsid 5ac8a51e-da3a-4998-8e66-e1df06b87bc8 devid 1 transid 8 /dev/loop4
BTRFS error (device loop4): unsupported checksum algorithm 1
------------[ cut here ]------------
BTRFS error (device loop0): fail to start transaction for status update: -28
WARNING: CPU: 1 PID: 11767 at fs/btrfs/qgroup.c:3095 btrfs_qgroup_free_meta+0x3db/0x4d0 fs/btrfs/qgroup.c:3095
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 11767 Comm: syz-executor.0 Not tainted 4.14.304-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
BTRFS error (device loop4): superblock checksum mismatch
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
 report_bug+0x208/0x250 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967
RIP: 0010:btrfs_qgroup_free_meta+0x3db/0x4d0 fs/btrfs/qgroup.c:3095
RSP: 0018:ffff888051c4f6d8 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffff88804ecbc840 RCX: ffffc90005de7000
RDX: 0000000000000955 RSI: ffffffff82b3ac7b RDI: ffff88804ecbd160
RBP: 0000000000003000 R08: ffffffff8b9c4888 R09: 0000000000000003
R10: 0000000000000000 R11: ffff888091a4c300 R12: ffff888051bb8580
R13: 0000000000000005 R14: ffff88804ecbcd98 R15: 0000000000080000
 btrfs_subvolume_reserve_metadata+0x1e6/0x2f0 fs/btrfs/extent-tree.c:5980
 create_subvol+0x28a/0x1930 fs/btrfs/ioctl.c:466
 btrfs_mksubvol+0xcb3/0x1000 fs/btrfs/ioctl.c:895
 btrfs_ioctl_snap_create_transid+0x28a/0x420 fs/btrfs/ioctl.c:1677
 btrfs_ioctl_snap_create+0xf4/0x150 fs/btrfs/ioctl.c:1725
 btrfs_ioctl+0x1861/0x5b20 fs/btrfs/ioctl.c:5616
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fb5219b50c9
RSP: 002b:00007fb51ff27168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb521ad4f80 RCX: 00007fb5219b50c9
RDX: 0000000020000200 RSI: 000000005000940e RDI: 0000000000000004
RBP: 00007fb521a10ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffac0ae81f R14: 00007fb51ff27300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..