BTRFS warning (device loop0): excessive commit interval 620990646 BTRFS info (device loop0): force zlib compression BTRFS info (device loop0): using free space tree BTRFS info (device loop0): has skinny extents ------------[ cut here ]------------ WARNING: CPU: 0 PID: 12332 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 ... CPU: 0 PID: 12332 Comm: syz-executor.0 Not tainted 4.14.305-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 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:ffff888075657670 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff8880724c6d80 RCX: ffffc90005bd4000 RDX: 0000000000000a6d RSI: ffffffff82b3ae2b RDI: ffff8880724c76a0 RBP: 0000000000003000 R08: ffffffff8b9bd720 R09: 0000000000000003 R10: 0000000000000000 R11: ffff888098454300 R12: ffff888075715940 R13: 0000000000000005 R14: ffff8880724c72d8 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: 0033:0x7f791f01d0f9 RSP: 002b:00007f791d58f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f791f13cf80 RCX: 00007f791f01d0f9 RDX: 0000000020000a80 RSI: 0000000050009418 RDI: 0000000000000004 RBP: 00007f791f078ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff05ab93ef R14: 00007f791d58f300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..