BTRFS warning (device loop1): excessive commit interval 620990646 BTRFS info (device loop1): force zlib compression BTRFS info (device loop1): using free space tree BTRFS info (device loop1): has skinny extents ------------[ cut here ]------------ WARNING: CPU: 1 PID: 10691 at fs/btrfs/qgroup.c:3095 btrfs_qgroup_free_meta+0x3db/0x4d0 fs/btrfs/qgroup.c:3095 BTRFS error (device loop1): fail to start transaction for status update: -28 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 10691 Comm: syz-executor.1 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 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:ffff88804311f670 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff8880a52f0dc0 RCX: ffffc900077f8000 RDX: 0000000000000c7f RSI: ffffffff82b3af0b RDI: ffff8880a52f16e0 RBP: 0000000000003000 R08: ffffffff8b9dea50 R09: 0000000000000003 R10: 0000000000000000 R11: ffff8880425660c0 R12: ffff888040c387c0 R13: 0000000000000005 R14: ffff8880a52f1318 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: 0033:0x7fcdff5200a9 RSP: 002b:00007fcdfda92168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fcdff63ff80 RCX: 00007fcdff5200a9 RDX: 0000000020000a80 RSI: 0000000050009418 RDI: 0000000000000004 RBP: 00007fcdff57bae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffefd12b05f R14: 00007fcdfda92300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..