loop0: detected capacity change from 0 to 32768 bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=ro,errors=continue,metadata_checksum=none,data_checksum=none,compression=gzip,nochanges,norecovery,nojournal_transaction_names,read_only,reconstruct_alloc,version_upgrade=incompatible,no_data_io bcachefs (loop0): recovering from clean shutdown, journal seq 10 bcachefs (loop0): dropping and reconstructing all alloc info bcachefs (loop0): insufficient writeable journal devices available: have 0, need 1 rw journal devs: loop0 bcachefs (loop0): error validating btree node on loop0 at btree extents level 0/0 u64s 11 type btree_ptr_v2 18446744073707239423:U64_MAX:U32_MAX 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): scan_for_btree_nodes... bch2_scan_for_btree_nodes: nodes found after overwrites: extents l=0 seq=1 journal_seq=5 cookie=c6c25c03258c59c5 POS_MIN-SPOS_MAX ptr: 0:27:0 gen 0 xattrs l=0 seq=1 journal_seq=4 cookie=2285c34bed0abe32 POS_MIN-SPOS_MAX ptr: 0:31:0 gen 0 lru l=0 seq=1 journal_seq=5 cookie=28f61e078e70b95c POS_MIN-SPOS_MAX ptr: 0:28:0 gen 0 deleted_inodes l=0 seq=1 journal_seq=0 cookie=1db8f60c84bb244c POS_MIN-SPOS_MAX ptr: 0:42:0 gen 0 done bcachefs (loop0): check_topology... bcachefs (loop0): btree root extents unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovering extents l=0 POS_MIN - SPOS_MAX bcachefs (loop0): bch2_get_scanned_nodes(): recovering u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c6c25c03258c59c5 written 16 min_key POS_MIN durability: 1 ptr: 0:27:0 gen 0 done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): stripes_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... 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 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 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 btree ptr not marked in member info btree allocated bitmap u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ebb8d5a9e3463bdb written 16 min_key POS_MIN durability: 1 ptr: 0:32:0 gen 0, fixing done bcachefs (loop0): going read-write bcachefs (loop0): scanning for old btree nodes: min_version 0.24: unwritten_extents ------------[ cut here ]------------ kernel BUG at fs/bcachefs/alloc_foreground.c:493! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #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_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:493 [inline] RIP: 0010:bch2_bucket_alloc_trans+0x39ec/0x3a50 fs/bcachefs/alloc_foreground.c:648 Code: e8 79 b5 f2 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 0f b4 f2 fd e9 e6 fd ff ff e8 d5 49 8c fd 90 <0f> 0b e8 cd 49 8c fd 90 0f 0b e8 25 e1 b5 07 f3 0f 1e fa e8 bc 49 RSP: 0018:ffffc9000d2ed6a0 EFLAGS: 00010283 RAX: ffffffff8413389b RBX: 0000000000000019 RCX: 0000000000100000 RDX: ffffc9000eccb000 RSI: 000000000007759d RDI: 000000000007759e RBP: ffffc9000d2eddc8 R08: ffffffff84130b69 R09: 0000000000000000 R10: ffffc9000d2edc88 R11: fffff52001a5db96 R12: dffffc0000000000 R13: ffff8880522e0000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fde831b36c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005647530d6018 CR3: 00000000528a2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_bucket_alloc_set_trans+0x517/0xd30 fs/bcachefs/alloc_foreground.c:808 __open_bucket_add_buckets+0x13d0/0x1ec0 fs/bcachefs/alloc_foreground.c:1057 open_bucket_add_buckets+0x33a/0x410 fs/bcachefs/alloc_foreground.c:1101 bch2_alloc_sectors_start_trans+0xce9/0x2030 __bch2_btree_node_alloc fs/bcachefs/btree_update_interior.c:339 [inline] bch2_btree_reserve_get+0x612/0x1890 fs/bcachefs/btree_update_interior.c:549 bch2_btree_update_start+0xe56/0x14e0 fs/bcachefs/btree_update_interior.c:1247 bch2_btree_node_rewrite+0x1c0/0x1270 fs/bcachefs/btree_update_interior.c:2148 bch2_move_btree+0x7af/0xde0 fs/bcachefs/move.c:865 bch2_scan_old_btree_nodes+0x14b/0x3c0 fs/bcachefs/move.c:995 bch2_fs_recovery+0x34f5/0x39d0 fs/bcachefs/recovery.c:974 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:3511 do_mount fs/namespace.c:3851 [inline] __do_sys_mount fs/namespace.c:4061 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4038 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: 0033:0x7fde823874ca 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:00007fde831b2e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fde831b2ef0 RCX: 00007fde823874ca RDX: 00000000200000c0 RSI: 0000000020000000 RDI: 00007fde831b2eb0 RBP: 00000000200000c0 R08: 00007fde831b2ef0 R09: 0000000000800001 R10: 0000000000800001 R11: 0000000000000246 R12: 0000000020000000 R13: 00007fde831b2eb0 R14: 000000000000597b R15: 0000000020005b40 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:493 [inline] RIP: 0010:bch2_bucket_alloc_trans+0x39ec/0x3a50 fs/bcachefs/alloc_foreground.c:648 Code: e8 79 b5 f2 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 0f b4 f2 fd e9 e6 fd ff ff e8 d5 49 8c fd 90 <0f> 0b e8 cd 49 8c fd 90 0f 0b e8 25 e1 b5 07 f3 0f 1e fa e8 bc 49 RSP: 0018:ffffc9000d2ed6a0 EFLAGS: 00010283 RAX: ffffffff8413389b RBX: 0000000000000019 RCX: 0000000000100000 RDX: ffffc9000eccb000 RSI: 000000000007759d RDI: 000000000007759e RBP: ffffc9000d2eddc8 R08: ffffffff84130b69 R09: 0000000000000000 R10: ffffc9000d2edc88 R11: fffff52001a5db96 R12: dffffc0000000000 R13: ffff8880522e0000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fde831b36c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005647530d6018 CR3: 00000000528a2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400