bcachefs (loop0): running explicit recovery pass reconstruct_snapshots (21), currently at snapshots_read (7) done bcachefs (loop0): check_allocations... bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ac62141f8dc7e261 written 24 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0, fixing bcachefs (loop0): bucket 0:26 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 ac62141f8dc7e261 written 24 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0, fixing bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap 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 bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap 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 bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c0bef60d07ceb940 written 16 min_key POS_MIN durability: 1 ptr: 0:35:0 gen 0, fixing bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq e81e1ed936acf3df written 32 min_key POS_MIN durability: 1 ptr: 0:29:0 gen 0, fixing bcachefs (loop0): bucket 0:15 gen 0 has wrong data_type: got free, should be journal, fixing bcachefs (loop0): bucket 0:15 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing bcachefs (loop0): bucket 0:26 gen 0 has wrong data_type: got free, should be btree, fixing bcachefs (loop0): bucket 0:26 gen 0 data type btree has wrong dirty_sectors: got 0, should be 256, fixing bcachefs (loop0): bucket 0:32 gen 0 has wrong data_type: got btree, should be need_discard, fixing bcachefs (loop0): bucket 0:32 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing done bcachefs (loop0): going read-write bcachefs (loop0): journal_replay... done bcachefs (loop0): check_lrus... done bcachefs (loop0): check_backpointers_to_extents... done bcachefs (loop0): check_extents_to_backpointers... bcachefs (loop0): scanning for missing backpointers in 4/128 buckets done bcachefs (loop0): reconstruct_snapshots... bcachefs (loop0): snapshot node 4294967295 from tree 4294967295 missing, recreating done bcachefs (loop0): check_inodes... done bcachefs (loop0): resume_logged_ops... done bcachefs (loop0): delete_dead_inodes... done bcachefs (loop0): Fixed errors, running fsck a second time to verify fs is clean bcachefs (loop0): check_lrus... done bcachefs (loop0): check_backpointers_to_extents... done bcachefs (loop0): check_extents_to_backpointers... bcachefs (loop0): scanning for missing backpointers in 1/128 buckets done bcachefs (loop0): reconstruct_snapshots... done bcachefs (loop0): check_inodes... done bcachefs (loop0): resume_logged_ops... done bcachefs (loop0): delete_dead_inodes... done bcachefs (loop0): done starting filesystem bcachefs (loop0): dirent to missing inode: u64s 7 type dirent 4096:189491840996961599:U32_MAX len 0 ver 0: file0 -> 4098 type dir ------------[ cut here ]------------ kernel BUG at fs/bcachefs/fs.c:61! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5328 Comm: syz.0.0 Not tainted 6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #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:bch2_inode_update_after_write+0xc89/0xc90 fs/bcachefs/fs.c:61 Code: ff 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c cc fb ff ff 48 89 f7 49 89 f6 e8 b5 a6 bc fd 4c 89 f6 e9 b9 fb ff ff e8 f8 6c 52 fd 90 <0f> 0b e8 10 50 bf 07 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d5af8c0 EFLAGS: 00010287 RAX: ffffffff84705028 RBX: 0000000000001005 RCX: 0000000000100000 RDX: ffffc9000dfca000 RSI: 0000000000006dbd RDI: 0000000000006dbe RBP: ffffc9000d5afa10 R08: ffffffff847044c2 R09: 00000000ffffffff R10: 0000000000001000 R11: 00000000ffffffff R12: 0000000000001002 R13: ffff88804535c000 R14: ffff88804535e5f8 R15: ffffc9000d5afb90 FS: 00007f53ae0806c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000c000 CR3: 0000000040a14000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __bch2_unlink+0x459/0x520 fs/bcachefs/fs.c:818 bch2_unlink+0xac/0xf0 fs/bcachefs/fs.c:841 vfs_unlink+0x365/0x650 fs/namei.c:4579 do_unlinkat+0x48f/0x810 fs/namei.c:4643 __do_sys_unlink fs/namei.c:4689 [inline] __se_sys_unlink fs/namei.c:4687 [inline] __x64_sys_unlink+0x47/0x50 fs/namei.c:4687 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f53ad18e169 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:00007f53ae080038 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007f53ad3b5fa0 RCX: 00007f53ad18e169 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000500 RBP: 00007f53ad210a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f53ad3b5fa0 R15: 00007ffee1d42be8 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_inode_update_after_write+0xc89/0xc90 fs/bcachefs/fs.c:61 Code: ff 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c cc fb ff ff 48 89 f7 49 89 f6 e8 b5 a6 bc fd 4c 89 f6 e9 b9 fb ff ff e8 f8 6c 52 fd 90 <0f> 0b e8 10 50 bf 07 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d5af8c0 EFLAGS: 00010287 RAX: ffffffff84705028 RBX: 0000000000001005 RCX: 0000000000100000 RDX: ffffc9000dfca000 RSI: 0000000000006dbd RDI: 0000000000006dbe RBP: ffffc9000d5afa10 R08: ffffffff847044c2 R09: 00000000ffffffff R10: 0000000000001000 R11: 00000000ffffffff R12: 0000000000001002 R13: ffff88804535c000 R14: ffff88804535e5f8 R15: ffffc9000d5afb90 FS: 00007f53ae0806c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f53ae05efd8 CR3: 0000000040a14000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400