bcachefs (loop2): done starting filesystem ------------[ cut here ]------------ kernel BUG at fs/bcachefs/alloc_foreground.c:489! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 7298 Comm: syz.2.143 Not tainted 6.10.0-rc6-syzkaller-00212-g1dd28064d416 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:bch2_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:489 [inline] RIP: 0010:bch2_bucket_alloc_trans+0x3ac8/0x3b30 fs/bcachefs/alloc_foreground.c:649 Code: 2e 7c f5 fd e9 07 c7 ff ff 44 89 f1 80 e1 07 38 c1 0f 8c fe fd ff ff 4c 89 f7 e8 c3 7a f5 fd e9 f1 fd ff ff e8 99 0f 93 fd 90 <0f> 0b e8 91 0f 93 fd 90 0f 0b e8 59 1e 7a 07 f3 0f 1e fa e8 80 0f RSP: 0018:ffffc9000c8657c0 EFLAGS: 00010293 RAX: ffffffff84031727 RBX: 0000000000000019 RCX: ffff88807e51bc00 RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000 RBP: ffffc9000c865ef0 R08: ffffffff8402e8f3 R09: 0000000000000000 R10: ffffc9000c865da8 R11: fffff5200190cbba R12: 0000000000000037 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fa7802e76c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5b8c30c000 CR3: 000000006181e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_bucket_alloc_set_trans+0x4f9/0xcf0 fs/bcachefs/alloc_foreground.c:810 __open_bucket_add_buckets+0x11ed/0x1c80 fs/bcachefs/alloc_foreground.c:1058 open_bucket_add_buckets+0x174/0x230 fs/bcachefs/alloc_foreground.c:1102 bch2_alloc_sectors_start_trans+0xcaf/0x1f60 __bch2_btree_node_alloc fs/bcachefs/btree_update_interior.c:333 [inline] bch2_btree_reserve_get+0x5f5/0x18d0 fs/bcachefs/btree_update_interior.c:547 bch2_btree_update_start+0xe84/0x1500 fs/bcachefs/btree_update_interior.c:1245 bch2_btree_split_leaf+0x12c/0x810 fs/bcachefs/btree_update_interior.c:1851 bch2_trans_commit_error+0x200/0x1210 fs/bcachefs/btree_trans_commit.c:918 __bch2_trans_commit+0x6e6c/0x88e0 fs/bcachefs/btree_trans_commit.c:1138 bch2_trans_commit fs/bcachefs/btree_update.h:170 [inline] bch2_logged_op_start+0x1c8/0x310 fs/bcachefs/logged_ops.c:83 bch2_truncate+0x1a4/0x2c0 fs/bcachefs/io_misc.c:291 bchfs_truncate+0x80f/0xc80 fs/bcachefs/fs-io.c:476 notify_change+0xb9d/0xe70 fs/attr.c:497 do_truncate+0x220/0x310 fs/open.c:65 handle_truncate fs/namei.c:3308 [inline] do_open fs/namei.c:3658 [inline] path_openat+0x2db0/0x35f0 fs/namei.c:3813 do_filp_open+0x235/0x490 fs/namei.c:3840 do_sys_openat2+0x13e/0x1d0 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_sys_creat fs/open.c:1504 [inline] __se_sys_creat fs/open.c:1498 [inline] __x64_sys_creat+0x123/0x170 fs/open.c:1498 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: 0033:0x7fa77f575bd9 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:00007fa7802e7048 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fa77f703f60 RCX: 00007fa77f575bd9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000020000040 RBP: 00007fa77f5e4aa1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fa77f703f60 R15: 00007fffb8a6f408 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:489 [inline] RIP: 0010:bch2_bucket_alloc_trans+0x3ac8/0x3b30 fs/bcachefs/alloc_foreground.c:649 Code: 2e 7c f5 fd e9 07 c7 ff ff 44 89 f1 80 e1 07 38 c1 0f 8c fe fd ff ff 4c 89 f7 e8 c3 7a f5 fd e9 f1 fd ff ff e8 99 0f 93 fd 90 <0f> 0b e8 91 0f 93 fd 90 0f 0b e8 59 1e 7a 07 f3 0f 1e fa e8 80 0f RSP: 0018:ffffc9000c8657c0 EFLAGS: 00010293 RAX: ffffffff84031727 RBX: 0000000000000019 RCX: ffff88807e51bc00 RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000 RBP: ffffc9000c865ef0 R08: ffffffff8402e8f3 R09: 0000000000000000 R10: ffffc9000c865da8 R11: fffff5200190cbba R12: 0000000000000037 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fa7802e76c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5b8cb7c000 CR3: 000000006181e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400