------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 0 PID: 5334 at fs/btrfs/extent-tree.c:3205 __btrfs_free_extent+0x2480/0x2eb0 fs/btrfs/extent-tree.c:3205 Modules linked in: CPU: 0 UID: 0 PID: 5334 Comm: syz.0.0 Not tainted 6.15.0-rc4-syzkaller-00208-g00b827f0cffa #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__btrfs_free_extent+0x2480/0x2eb0 fs/btrfs/extent-tree.c:3205 Code: 80 95 ac 8b 45 89 ee 44 89 ea e8 9b 51 6e fd eb 1d e8 54 fd 03 fe 90 48 c7 c7 20 95 ac 8b 45 89 ee 44 89 ee e8 91 59 c8 fd 90 <0f> 0b 90 90 4c 8b 7c 24 20 48 8b 7c 24 18 e9 94 e2 ff ff e8 28 fd RSP: 0018:ffffc9000d4c7200 EFLAGS: 00010246 RAX: 3726493f61fc5f00 RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000f3c4000 RSI: 0000000000001eb1 RDI: 0000000000001eb2 RBP: ffffc9000d4c73b0 R08: ffff88801fe23e93 R09: 1ffff11003fc47d2 R10: dffffc0000000000 R11: ffffed1003fc47d3 R12: 00000000ffffffe4 R13: 00000000ffffffe4 R14: 00000000ffffffe4 R15: ffff888053975630 FS: 00007f88cf3b36c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a5611d3270 CR3: 0000000041b21000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: run_delayed_tree_ref fs/btrfs/extent-tree.c:1747 [inline] run_one_delayed_ref fs/btrfs/extent-tree.c:1773 [inline] btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1970 [inline] __btrfs_run_delayed_refs+0xe7b/0x3a50 fs/btrfs/extent-tree.c:2040 btrfs_run_delayed_refs+0xe6/0x300 fs/btrfs/extent-tree.c:2152 btrfs_commit_transaction+0x26f/0x3720 fs/btrfs/transaction.c:2209 sync_filesystem+0x1cc/0x230 fs/sync.c:66 btrfs_reconfigure+0x2dd/0x2d30 fs/btrfs/super.c:1504 reconfigure_super+0x224/0x890 fs/super.c:1083 do_remount fs/namespace.c:3368 [inline] path_mount+0xd18/0xfe0 fs/namespace.c:4203 do_mount fs/namespace.c:4224 [inline] __do_sys_mount fs/namespace.c:4435 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4412 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f88d2f8e969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f88cf3b3038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f88d31b6160 RCX: 00007f88d2f8e969 RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000000 RBP: 00007f88d3010ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000021 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f88d31b6160 R15: 00007ffca1559f38