bcachefs (loop0): going read-only bcachefs (loop0): finished waiting for writes to stop bcachefs (loop0): flushing journal and stopping allocators, journal seq 1 ------------[ cut here ]------------ kernel BUG at fs/bcachefs/alloc_foreground.c:489! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 5220 Comm: syz-executor172 Not tainted 6.12.0-rc2-syzkaller-00305-g7234e2ea0edd #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:489 [inline] RIP: 0010:bch2_bucket_alloc_trans+0x39ec/0x3a50 fs/bcachefs/alloc_foreground.c:644 Code: e8 29 8a f0 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 bf 88 f0 fd e9 e6 fd ff ff e8 35 fc 89 fd 90 <0f> 0b e8 2d fc 89 fd 90 0f 0b e8 95 2b b2 07 f3 0f 1e fa e8 1c fc RSP: 0018:ffffc90003e851c0 EFLAGS: 00010293 RAX: ffffffff840aeacb RBX: 0000000000000019 RCX: ffff88802d549e00 RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000 RBP: ffffc90003e858e8 R08: ffffffff840abd99 R09: 0000000000000000 R10: ffffc90003e857a8 R11: fffff520007d0afa R12: dffffc0000000000 R13: ffff88807a51c000 R14: 0000000000000000 R15: 0000000000000000 FS: 000055555a922380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564dd46df160 CR3: 00000000766a2000 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:804 __open_bucket_add_buckets+0x10dc/0x1b60 fs/bcachefs/alloc_foreground.c:1049 open_bucket_add_buckets+0x33a/0x410 fs/bcachefs/alloc_foreground.c:1093 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 wb_flush_one fs/bcachefs/btree_write_buffer.c:183 [inline] bch2_btree_write_buffer_flush_locked+0x2aa8/0x59f0 fs/bcachefs/btree_write_buffer.c:375 btree_write_buffer_flush_seq+0x1a43/0x1bc0 fs/bcachefs/btree_write_buffer.c:510 bch2_btree_write_buffer_journal_flush+0x4e/0x80 fs/bcachefs/btree_write_buffer.c:525 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+0x225/0x3a0 fs/bcachefs/journal_reclaim.c:852 bch2_journal_flush_all_pins fs/bcachefs/journal_reclaim.h:76 [inline] __bch2_fs_read_only+0x124/0x430 fs/bcachefs/super.c:274 bch2_fs_read_only+0xb57/0x1200 fs/bcachefs/super.c:354 __bch2_fs_stop+0x105/0x540 fs/bcachefs/super.c:619 bch2_fs_stop+0x15/0x20 fs/bcachefs/super.c:678 bch2_fs_get_tree+0xd9f/0x1710 fs/bcachefs/fs.c:2173 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4055 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032 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: 0033:0x7f61de613dea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdb66b7d48 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffdb66b7d60 RCX: 00007f61de613dea RDX: 0000000020005b00 RSI: 0000000020005b40 RDI: 00007ffdb66b7d60 RBP: 0000000000000004 R08: 00007ffdb66b7da0 R09: 0000000000005b42 R10: 0000000000000002 R11: 0000000000000282 R12: 0000000000000002 R13: 00007ffdb66b7da0 R14: 0000000000000003 R15: 0000000001000000 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+0x39ec/0x3a50 fs/bcachefs/alloc_foreground.c:644 Code: e8 29 8a f0 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 bf 88 f0 fd e9 e6 fd ff ff e8 35 fc 89 fd 90 <0f> 0b e8 2d fc 89 fd 90 0f 0b e8 95 2b b2 07 f3 0f 1e fa e8 1c fc RSP: 0018:ffffc90003e851c0 EFLAGS: 00010293 RAX: ffffffff840aeacb RBX: 0000000000000019 RCX: ffff88802d549e00 RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000 RBP: ffffc90003e858e8 R08: ffffffff840abd99 R09: 0000000000000000 R10: ffffc90003e857a8 R11: fffff520007d0afa R12: dffffc0000000000 R13: ffff88807a51c000 R14: 0000000000000000 R15: 0000000000000000 FS: 000055555a922380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564dd46df160 CR3: 00000000766a2000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400