BTRFS info (device loop2): using free space tree
gfs2: fsid=syz:syz.0: jid=0: Done
BTRFS info (device loop2): has skinny extents
gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 1 PID: 12843 at fs/btrfs/qgroup.c:3095 btrfs_qgroup_free_meta+0x3db/0x4d0 fs/btrfs/qgroup.c:3095
Kernel panic - not syncing: kernel: panic_on_warn set ...

BTRFS error (device loop2): fail to start transaction for status update: -28
CPU: 1 PID: 12843 Comm: syz-executor.2 Not tainted 4.14.307-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x21d/0x451 kernel/panic.c:247
 check_panic_on_warn.cold+0x19/0x35 kernel/panic.c:171
 __warn+0xdf/0x1e0 kernel/panic.c:603
 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:ffff88804563f670 EFLAGS: 00010216
RAX: 0000000000040000 RBX: ffff8880a298e900 RCX: ffffc90009c04000
RDX: 0000000000000ae8 RSI: ffffffff82b3b22b RDI: ffff8880a298f220
RBP: 0000000000003000 R08: ffffffff8b9a6fa8 R09: 0000000000000003
R10: 0000000000000000 R11: ffff88804310e380 R12: ffff888043f68000
R13: 0000000000000005 R14: ffff8880a298ee58 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_v2+0x22f/0x340 fs/btrfs/ioctl.c:1774
 btrfs_ioctl+0x1806/0x5b20 fs/btrfs/ioctl.c:5618
 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: 0033:0x7f9a7e83c0f9
RSP: 002b:00007f9a7cdae168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9a7e95bf80 RCX: 00007f9a7e83c0f9
RDX: 0000000020000a80 RSI: 0000000050009418 RDI: 0000000000000004
RBP: 00007f9a7e897ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc5dfd08af R14: 00007f9a7cdae300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..