BTRFS info (device loop4): relocating block group 5242880 flags data|metadata ------------[ cut here ]------------ WARNING: CPU: 1 PID: 15345 at fs/btrfs/extent-tree.c:851 lookup_inline_extent_backref+0x1041/0x14d0 Modules linked in: CPU: 1 PID: 15345 Comm: syz-executor.4 Not tainted 6.5.0-syzkaller-13160-g1548b060d6f3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 RIP: 0010:lookup_inline_extent_backref+0x1041/0x14d0 fs/btrfs/extent-tree.c:851 Code: 9c 24 28 01 00 00 bf c0 00 00 00 89 de e8 77 68 02 fe 81 fb c0 00 00 00 0f 83 fd 00 00 00 e8 d6 65 02 fe eb 81 e8 cf 65 02 fe <0f> 0b 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 27 50 RSP: 0018:ffffc90016df6a20 EFLAGS: 00010246 RAX: ffffffff838b3dc1 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000d723000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90016df6bd0 R08: ffffffff838b31ca R09: 0000000000000000 R10: ffffc90016df6780 R11: fffff52002dbecf2 R12: dffffc0000000000 R13: ffff8880784fa8f0 R14: ffff88807862e000 R15: ffffc90016df6b40 FS: 00007f3ce0bfe6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f65ba798000 CR3: 0000000027147000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: insert_inline_extent_backref+0xda/0x2a0 fs/btrfs/extent-tree.c:1194 __btrfs_inc_extent_ref+0x123/0x5f0 fs/btrfs/extent-tree.c:1494 run_delayed_tree_ref fs/btrfs/extent-tree.c:1713 [inline] run_one_delayed_ref fs/btrfs/extent-tree.c:1740 [inline] btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1986 [inline] __btrfs_run_delayed_refs+0x1183/0x3fa0 fs/btrfs/extent-tree.c:2047 btrfs_run_delayed_refs+0x140/0x480 fs/btrfs/extent-tree.c:2159 qgroup_account_snapshot+0xce/0x360 fs/btrfs/transaction.c:1564 create_pending_snapshot+0x1046/0x29e0 fs/btrfs/transaction.c:1840 create_pending_snapshots+0x195/0x1d0 fs/btrfs/transaction.c:1909 btrfs_commit_transaction+0xf29/0x2ff0 fs/btrfs/transaction.c:2379 prepare_to_relocate+0x3c5/0x4c0 fs/btrfs/relocation.c:3638 relocate_block_group+0x17f/0xcd0 fs/btrfs/relocation.c:3663 btrfs_relocate_block_group+0x7ab/0xd70 fs/btrfs/relocation.c:4125 btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3276 __btrfs_balance+0x1b06/0x2690 fs/btrfs/volumes.c:4011 btrfs_balance+0xbd8/0x10d0 fs/btrfs/volumes.c:4388 btrfs_ioctl_balance+0x496/0x7c0 fs/btrfs/ioctl.c:3604 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xf8/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3ce207cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3ce0bfe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f3ce219bf80 RCX: 00007f3ce207cae9 RDX: 00000000200003c0 RSI: 00000000c4009420 RDI: 0000000000000005 RBP: 00007f3ce20c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f3ce219bf80 R15: 00007ffc5f91b1d8