loop0: detected capacity change from 0 to 32768 bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names bcachefs (loop0): recovering from clean shutdown, journal seq 72057594037927946 bcachefs (loop0): Version upgrade required: Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): stripes_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... bucket 0:25 gen 0 has wrong data_type: got free, should be journal, fixing bucket 0:25 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing done bcachefs (loop0): going read-write bcachefs (loop0): journal_replay... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_write_buffer.c:147! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5343 Comm: syz.0.0 Not tainted 6.12.0-syzkaller-10681-g65ae975e97d5 #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:wb_flush_one fs/bcachefs/btree_write_buffer.c:147 [inline] RIP: 0010:bch2_btree_write_buffer_flush_locked+0x56bd/0x5a20 fs/bcachefs/btree_write_buffer.c:379 Code: c9 fc f4 ff e8 b4 62 6e fd 90 0f 0b e8 ac 62 6e fd 90 0f 0b e8 a4 62 6e fd 90 0f 0b e8 9c 62 6e fd 90 0f 0b e8 94 62 6e fd 90 <0f> 0b e8 8c 62 6e fd 90 0f 0b e8 64 9a ab 07 e8 7f 62 6e fd 90 0f RSP: 0018:ffffc9000d4ce760 EFLAGS: 00010293 RAX: ffffffff842781ec RBX: 010000000000000b RCX: ffff888000d28000 RDX: 0000000000000000 RSI: 000000000000000b RDI: 010000000000000b RBP: ffffc9000d4cebb0 R08: ffffffff8427449b R09: 0000000000000000 R10: ffffc9000d4ce240 R11: fffff52001a99c49 R12: ffffc90024a004b0 R13: ffff8880433e0000 R14: 000000000000000b R15: ffffc90024a00000 FS: 00007f852b52e6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005587f86f3000 CR3: 00000000438ea000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btree_write_buffer_flush_seq+0x1b23/0x1cc0 fs/bcachefs/btree_write_buffer.c:517 bch2_btree_write_buffer_journal_flush+0xc7/0x150 fs/bcachefs/btree_write_buffer.c:533 journal_flush_pins+0x5f7/0xb20 fs/bcachefs/journal_reclaim.c:565 journal_flush_done+0x8e/0x260 fs/bcachefs/journal_reclaim.c:819 bch2_journal_flush_pins+0x18a/0x3a0 fs/bcachefs/journal_reclaim.c:852 bch2_journal_flush_all_pins fs/bcachefs/journal_reclaim.h:76 [inline] bch2_journal_replay+0x270f/0x2a40 fs/bcachefs/recovery.c:383 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: 0033:0x7f852a781faa 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:00007f852b52de88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f852b52df10 RCX: 00007f852a781faa RDX: 0000000020000040 RSI: 0000000020005900 RDI: 00007f852b52ded0 RBP: 0000000020000040 R08: 00007f852b52df10 R09: 0000000000000800 R10: 0000000000000800 R11: 0000000000000246 R12: 0000000020005900 R13: 00007f852b52ded0 R14: 00000000000058bd R15: 0000000020000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:wb_flush_one fs/bcachefs/btree_write_buffer.c:147 [inline] RIP: 0010:bch2_btree_write_buffer_flush_locked+0x56bd/0x5a20 fs/bcachefs/btree_write_buffer.c:379 Code: c9 fc f4 ff e8 b4 62 6e fd 90 0f 0b e8 ac 62 6e fd 90 0f 0b e8 a4 62 6e fd 90 0f 0b e8 9c 62 6e fd 90 0f 0b e8 94 62 6e fd 90 <0f> 0b e8 8c 62 6e fd 90 0f 0b e8 64 9a ab 07 e8 7f 62 6e fd 90 0f RSP: 0018:ffffc9000d4ce760 EFLAGS: 00010293 RAX: ffffffff842781ec RBX: 010000000000000b RCX: ffff888000d28000 RDX: 0000000000000000 RSI: 000000000000000b RDI: 010000000000000b RBP: ffffc9000d4cebb0 R08: ffffffff8427449b R09: 0000000000000000 R10: ffffc9000d4ce240 R11: fffff52001a99c49 R12: ffffc90024a004b0 R13: ffff8880433e0000 R14: 000000000000000b R15: ffffc90024a00000 FS: 00007f852b52e6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e52a678038 CR3: 00000000438ea000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400