syzbot

  u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 9aa2895aefce4bdf written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0  
  node offset 16/24: btree node data missing: expected 24 sectors, found 16, shutting down
Kernel panic - not syncing: bcachefs (loop0): panic after error
CPU: 0 UID: 0 PID: 5312 Comm: syz-executor266 Not tainted 6.14.0-rc4-syzkaller-00169-g1e15510b71c9 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 panic+0x349/0x880 kernel/panic.c:354
 bch2_inconsistent_error+0x146/0x150 fs/bcachefs/error.c:28
 __bch2_fsck_err+0x10df/0x1420 fs/bcachefs/error.c:438
 __btree_err+0x64a/0x760 fs/bcachefs/btree_io.c:581
 bch2_btree_node_read_done+0x3412/0x6180 fs/bcachefs/btree_io.c:1202
 btree_node_read_work+0x6dc/0x1380 fs/bcachefs/btree_io.c:1358
 bch2_btree_node_read+0x2433/0x29f0
 __bch2_btree_root_read fs/bcachefs/btree_io.c:1789 [inline]
 bch2_btree_root_read+0x626/0x7b0 fs/bcachefs/btree_io.c:1811
 read_btree_roots+0x3d3/0xa70 fs/bcachefs/recovery.c:581
 bch2_fs_recovery+0x260f/0x3de0 fs/bcachefs/recovery.c:928
 bch2_fs_start+0x37c/0x610 fs/bcachefs/super.c:1041
 bch2_fs_get_tree+0xdb7/0x17a0 fs/bcachefs/fs.c:2203
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3560
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3052b91eaa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff762faa18 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fff762faa30 RCX: 00007f3052b91eaa
RDX: 00004000000000c0 RSI: 0000400000000180 RDI: 00007fff762faa30
RBP: 0000000000000010 R08: 00007fff762faa70 R09: 0000000000005965
R10: 0000000000000010 R11: 0000000000000282 R12: 0000400000000180
R13: 00004000000000c0 R14: 00007fff762faa70 R15: 0000000000000003
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..