features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0 bcachefs (loop0): initializing new filesystem ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_trans_commit.c:1027! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 9279 Comm: syz.0.667 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:do_bch2_trans_commit_to_journal_replay+0x10f3/0x1120 fs/bcachefs/btree_trans_commit.c:1027 Code: 48 c7 c1 79 7b 99 8d 49 89 c0 e8 f8 7a 2b 00 4c 89 ff e8 10 c7 0d 00 48 8b 7c 24 68 e8 d6 1b 00 00 90 0f 0b e8 4e e3 92 fd 90 <0f> 0b e8 46 e3 92 fd eb ad e8 3f e3 92 fd eb a6 e8 38 e3 92 fd 90 RSP: 0018:ffffc9000ae66838 EFLAGS: 00010283 RAX: ffffffff842ccdc2 RBX: 00000000fffff7ab RCX: 0000000000080000 RDX: ffffc9000befa000 RSI: 000000000004ffcf RDI: 000000000004ffd0 RBP: ffff888055b10000 R08: ffff8880409849e3 R09: 1ffff1100813093c R10: dffffc0000000000 R11: ffffed100813093d R12: ffff888055b10028 R13: 0000000000000000 R14: ffff888055b100d2 R15: ffff888055c9f4d0 FS: 00007fbd3ed646c0(0000) GS:ffff888125be3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005629961fc660 CR3: 000000007e31c000 CR4: 00000000003526f0 Call Trace: __bch2_trans_commit+0x1b13/0x8a70 fs/bcachefs/btree_trans_commit.c:1060 bch2_trans_commit fs/bcachefs/btree_update.h:270 [inline] bch2_trans_mark_metadata_bucket+0x57f/0x1270 fs/bcachefs/buckets.c:1059 __bch2_trans_mark_dev_sb fs/bcachefs/buckets.c:1131 [inline] bch2_trans_mark_dev_sb+0x5c8/0x7d0 fs/bcachefs/buckets.c:1145 bch2_trans_mark_dev_sbs_flags+0x49c/0x500 fs/bcachefs/buckets.c:1154 bch2_fs_initialize+0x4df/0xe60 fs/bcachefs/recovery.c:1191 bch2_fs_start+0xa00/0xcc0 fs/bcachefs/super.c:1217 bch2_fs_get_tree+0xb39/0x1540 fs/bcachefs/fs.c:2456 vfs_get_tree+0x92/0x2b0 fs/super.c:1815 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3805 do_mount fs/namespace.c:4133 [inline] __do_sys_mount fs/namespace.c:4344 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4321 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbd3df9014a 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:00007fbd3ed63e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fbd3ed63ef0 RCX: 00007fbd3df9014a RDX: 0000200000000140 RSI: 0000200000000000 RDI: 00007fbd3ed63eb0 RBP: 0000200000000140 R08: 00007fbd3ed63ef0 R09: 0000000000200414 R10: 0000000000200414 R11: 0000000000000246 R12: 0000200000000000 R13: 00007fbd3ed63eb0 R14: 0000000000005ad0 R15: 0000200000000400 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_bch2_trans_commit_to_journal_replay+0x10f3/0x1120 fs/bcachefs/btree_trans_commit.c:1027 Code: 48 c7 c1 79 7b 99 8d 49 89 c0 e8 f8 7a 2b 00 4c 89 ff e8 10 c7 0d 00 48 8b 7c 24 68 e8 d6 1b 00 00 90 0f 0b e8 4e e3 92 fd 90 <0f> 0b e8 46 e3 92 fd eb ad e8 3f e3 92 fd eb a6 e8 38 e3 92 fd 90 RSP: 0018:ffffc9000ae66838 EFLAGS: 00010283 RAX: ffffffff842ccdc2 RBX: 00000000fffff7ab RCX: 0000000000080000 RDX: ffffc9000befa000 RSI: 000000000004ffcf RDI: 000000000004ffd0 RBP: ffff888055b10000 R08: ffff8880409849e3 R09: 1ffff1100813093c R10: dffffc0000000000 R11: ffffed100813093d R12: ffff888055b10028 R13: 0000000000000000 R14: ffff888055b100d2 R15: ffff888055c9f4d0 FS: 00007fbd3ed646c0(0000) GS:ffff888125ce3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0ca6445000 CR3: 000000007e31c000 CR4: 00000000003526f0