bcachefs (loop3): done starting filesystem ------------[ cut here ]------------ kernel BUG at fs/bcachefs/alloc_foreground.c:493! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 6122 Comm: syz.3.41 Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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 d9 49 f0 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 6f 48 f0 fd e9 e6 fd ff ff e8 85 a6 89 fd 90 <0f> 0b e8 7d a6 89 fd 90 0f 0b e8 25 73 b3 07 f3 0f 1e fa e8 6c a6 RSP: 0018:ffffc9000b6d5c20 EFLAGS: 00010293 RAX: ffffffff840b337b RBX: 0000000000000019 RCX: ffff8880257b1e00 RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000 RBP: ffffc9000b6d6348 R08: ffffffff840b0649 R09: 0000000000000000 R10: ffffc9000b6d6208 R11: fffff520016dac46 R12: dffffc0000000000 R13: ffff88805eb0c000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f6b67fd56c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f14168be440 CR3: 0000000062ab8000 CR4: 00000000003526f0 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:343 [inline] bch2_btree_reserve_get+0x612/0x1890 fs/bcachefs/btree_update_interior.c:554 bch2_btree_update_start+0xe56/0x14e0 fs/bcachefs/btree_update_interior.c:1252 bch2_btree_split_leaf+0x123/0x840 fs/bcachefs/btree_update_interior.c:1850 bch2_trans_commit_error+0x212/0x1390 fs/bcachefs/btree_trans_commit.c:942 __bch2_trans_commit+0x7ead/0x93c0 fs/bcachefs/btree_trans_commit.c:1140 bch2_trans_commit fs/bcachefs/btree_update.h:184 [inline] bch2_logged_op_start+0x1c8/0x310 fs/bcachefs/logged_ops.c:92 bch2_truncate+0x19e/0x2d0 fs/bcachefs/io_misc.c:294 bchfs_truncate+0x85f/0xc90 fs/bcachefs/fs-io.c:464 notify_change+0xbca/0xe90 fs/attr.c:503 do_truncate+0x220/0x310 fs/open.c:65 vfs_truncate+0x2e1/0x3b0 fs/open.c:111 do_sys_truncate+0xdb/0x190 fs/open.c:134 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: 0033:0x7f6b69b7e719 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:00007f6b67fd5038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007f6b69d36058 RCX: 00007f6b69b7e719 RDX: 0000000000000000 RSI: 0000000000001bfc RDI: 0000000020000800 RBP: 00007f6b69bf139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6b69d36058 R15: 00007fffa19ca8f8 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 d9 49 f0 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 6f 48 f0 fd e9 e6 fd ff ff e8 85 a6 89 fd 90 <0f> 0b e8 7d a6 89 fd 90 0f 0b e8 25 73 b3 07 f3 0f 1e fa e8 6c a6 RSP: 0018:ffffc9000b6d5c20 EFLAGS: 00010293 RAX: ffffffff840b337b RBX: 0000000000000019 RCX: ffff8880257b1e00 RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000 RBP: ffffc9000b6d6348 R08: ffffffff840b0649 R09: 0000000000000000 R10: ffffc9000b6d6208 R11: fffff520016dac46 R12: dffffc0000000000 R13: ffff88805eb0c000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f6b67fd56c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe59b7a248 CR3: 0000000062ab8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400