loop0: detected capacity change from 0 to 32768 bcachefs (/dev/loop0): error reading default superblock: checksum error, type none: got should be bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names bcachefs (loop0): recovering from clean shutdown, journal seq 10 bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.13: inode_has_child_snapshots running recovery passes: check_allocations,check_inodes bcachefs (loop0): error validating btree node on loop0 at btree extents level 0/0 u64s 11 type btree_ptr_v2 U64_MAX:18374686479671623680:2852126719 len 0 ver 0: seq c6c25c03258c59c5 written 16 min_key POS_MIN durability: 1 ptr: 0:27:0 gen 0 node offset 0/16 bset u64s 0: incorrect max key SPOS_MAX bcachefs (loop0): flagging btree extents lost data error reading btree root extents l=0: btree_node_read_error, fixing bcachefs (loop0): will run btree node scan bcachefs (loop0): error validating btree node at btree inodes level 0/0 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 node offset 16/24 bset u64s 110 bset byte offset 664: keys out of order: u64s 18 type inode_v3 0:36028797555834880:U32_MAX len 0 ver 0 > u64s 18 type inode_v3 0:536870913:U32_MAX len 0 ver 0, fixing invalid bkey u64s 18 type inode_v3 0:4100:U32_MAX len 0 ver 0: (unpack error) invalid variable length fields: delete?, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at btree=inodes level=0 SPOS_MAX due to error ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_io.c:1743! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5339 Comm: syz.0.0 Not tainted 6.12.0-syzkaller-10689-g7af08b57bcb9 #0 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_btree_root_read fs/bcachefs/btree_io.c:1743 [inline] RIP: 0010:bch2_btree_root_read+0x78d/0x7a0 fs/bcachefs/btree_io.c:1771 Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c 98 fa ff ff 4c 89 f7 e8 26 6b e6 fd e9 8b fa ff ff e8 dc 83 7b fd 90 0f 0b e8 d4 83 7b fd 90 <0f> 0b e8 3c 5e b8 07 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 RSP: 0018:ffffc9000d52f3a0 EFLAGS: 00010287 RAX: ffffffff841a5dfc RBX: 00000000ffffffef RCX: 0000000000100000 RDX: ffffc9000e762000 RSI: 0000000000036b94 RDI: 0000000000036b95 RBP: ffffc9000d52f4e0 R08: ffffffff841a5c41 R09: 1ffff92001aa5e5c R10: dffffc0000000000 R11: fffff52001aa5e5d R12: ffff888043add800 R13: 0000000000029001 R14: ffff888053101a80 R15: 0000000000000000 FS: 00007fb81bffe6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559f4c3c6e48 CR3: 0000000045476000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: read_btree_roots+0x296/0x840 fs/bcachefs/recovery.c:523 bch2_fs_recovery+0x2585/0x39d0 fs/bcachefs/recovery.c:853 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: 0033:0x7fb81c581fea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb81bffde88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fb81bffdf10 RCX: 00007fb81c581fea RDX: 00000000200058c0 RSI: 0000000020005900 RDI: 00007fb81bffded0 RBP: 00000000200058c0 R08: 00007fb81bffdf10 R09: 0000000001000000 R10: 0000000001000000 R11: 0000000000000246 R12: 0000000020005900 R13: 00007fb81bffded0 R14: 000000000000597e R15: 0000000020000040 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__bch2_btree_root_read fs/bcachefs/btree_io.c:1743 [inline] RIP: 0010:bch2_btree_root_read+0x78d/0x7a0 fs/bcachefs/btree_io.c:1771 Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c 98 fa ff ff 4c 89 f7 e8 26 6b e6 fd e9 8b fa ff ff e8 dc 83 7b fd 90 0f 0b e8 d4 83 7b fd 90 <0f> 0b e8 3c 5e b8 07 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 RSP: 0018:ffffc9000d52f3a0 EFLAGS: 00010287 RAX: ffffffff841a5dfc RBX: 00000000ffffffef RCX: 0000000000100000 RDX: ffffc9000e762000 RSI: 0000000000036b94 RDI: 0000000000036b95 RBP: ffffc9000d52f4e0 R08: ffffffff841a5c41 R09: 1ffff92001aa5e5c R10: dffffc0000000000 R11: fffff52001aa5e5d R12: ffff888043add800 R13: 0000000000029001 R14: ffff888053101a80 R15: 0000000000000000 FS: 00007fb81bffe6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005560328f4088 CR3: 0000000045476000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400