syzbot

bucket 0:38 data type btree ptr gen 0 missing in alloc btree
while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 7589ab5e0c11cc7a written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0, fixing
bucket 0:41 data type btree ptr gen 0 missing in alloc btree
while marking 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, fixing
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kernel BUG at fs/bcachefs/btree_iter.c:631!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 5824 Comm: syz-executor915 Not tainted 6.13.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:bch2_btree_path_level_init+0x9ca/0x9f0 fs/bcachefs/btree_iter.c:631
Code: f5 fa ff ff e8 07 90 84 fd 90 0f 0b e8 ff 8f 84 fd 90 0f 0b e8 f7 8f 84 fd 90 0f 0b e8 ef 8f 84 fd 90 0f 0b e8 e7 8f 84 fd 90 <0f> 0b e8 df 8f 84 fd 90 0f 0b e8 d7 8f 84 fd 90 0f 0b e8 cf 8f 84
RSP: 0018:ffffc90003c0e1e0 EFLAGS: 00010293
RAX: ffffffff841ae3f9 RBX: 0000000000000000 RCX: ffff88802b623c00
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff841adc4c R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2030a6f R12: ffff888035ea7000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888078700033
FS:  0000555583fa8380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563ef9a5aa38 CR3: 0000000075522000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btree_path_lock_root fs/bcachefs/btree_iter.c:769 [inline]
 bch2_btree_path_traverse_one+0x10de/0x2940 fs/bcachefs/btree_iter.c:1183
 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:247 [inline]
 __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2210 [inline]
 bch2_btree_iter_peek_upto+0xb58/0x70e0 fs/bcachefs/btree_iter.c:2310
 bch2_btree_iter_peek_upto_type fs/bcachefs/btree_iter.h:685 [inline]
 bch2_gc_btree fs/bcachefs/btree_gc.c:670 [inline]
 bch2_gc_btrees fs/bcachefs/btree_gc.c:729 [inline]
 bch2_check_allocations+0x1abe/0x7070 fs/bcachefs/btree_gc.c:1133
 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:191
 bch2_run_recovery_passes+0x3a7/0x880 fs/bcachefs/recovery_passes.c:244
 bch2_fs_recovery+0x25cc/0x39d0 fs/bcachefs/recovery.c:861
 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1037
 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2170
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
 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: 0033:0x7f4309e24d3a
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:00007ffe90004048 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe90004060 RCX: 00007f4309e24d3a
RDX: 00000000200058c0 RSI: 0000000020005900 RDI: 00007ffe90004060
RBP: 0000000000000004 R08: 00007ffe900040a0 R09: 002c303030303030
R10: 0000000000800000 R11: 0000000000000282 R12: 0000000000800000
R13: 00007ffe900040a0 R14: 0000000000000003 R15: 0000000001000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_btree_path_level_init+0x9ca/0x9f0 fs/bcachefs/btree_iter.c:631
Code: f5 fa ff ff e8 07 90 84 fd 90 0f 0b e8 ff 8f 84 fd 90 0f 0b e8 f7 8f 84 fd 90 0f 0b e8 ef 8f 84 fd 90 0f 0b e8 e7 8f 84 fd 90 <0f> 0b e8 df 8f 84 fd 90 0f 0b e8 d7 8f 84 fd 90 0f 0b e8 cf 8f 84
RSP: 0018:ffffc90003c0e1e0 EFLAGS: 00010293
RAX: ffffffff841ae3f9 RBX: 0000000000000000 RCX: ffff88802b623c00
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff841adc4c R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2030a6f R12: ffff888035ea7000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888078700033
FS:  0000555583fa8380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056262b6e7038 CR3: 0000000075522000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400