features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes bcachefs (loop6): Using encoding defined by superblock: utf8-12.1.0 bcachefs (loop6): initializing new filesystem bcachefs (loop6): going read-write bcachefs (loop6): marking superblocks ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(!test_bit(class_idx, lock_classes_in_use)) WARNING: kernel/locking/lockdep.c:5207 at __lock_acquire+0xc0c/0xd20 kernel/locking/lockdep.c:5207, CPU#0: syz.6.1355/11462 Modules linked in: CPU: 0 UID: 0 PID: 11462 Comm: syz.6.1355 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:__lock_acquire+0xc0c/0xd20 kernel/locking/lockdep.c:5207 Code: ff ff 90 e8 76 e8 29 03 85 c0 74 22 83 3d 4f 91 26 0e 00 75 19 90 48 c7 c7 a4 b0 da 8d 48 c7 c6 ba 31 c2 8d e8 15 de e5 ff 90 <0f> 0b 90 90 90 e9 8f 00 00 00 90 0f 0b 90 e9 8d fe ff ff 90 e8 3b RSP: 0018:ffffc90003e1e418 EFLAGS: 00010046 RAX: 61ff7bcb11b7c200 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000bb2a000 RSI: 000000000004fba8 RDI: 000000000004fba9 RBP: 0000000000000bd3 R08: ffff8880b8624253 R09: 1ffff110170c484a R10: dffffc0000000000 R11: ffffed10170c484b R12: 0000000000008000 R13: 0000000000000000 R14: ffff88803190e690 R15: 0000000000000000 FS: 00007f0ffc2586c0(0000) GS:ffff8881259f0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000e000 CR3: 000000007dad4000 CR4: 00000000003526f0 Call Trace: lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 __raw_spin_trylock include/linux/spinlock_api_smp.h:90 [inline] _raw_spin_trylock+0x47/0x80 kernel/locking/spinlock.c:138 spin_lock_irqsave_sdp_contention kernel/rcu/srcutree.c:375 [inline] srcu_gp_start_if_needed+0x31f/0x11d0 kernel/rcu/srcutree.c:1277 __rcu_pending_enqueue fs/bcachefs/rcu_pending.c:498 [inline] rcu_pending_enqueue+0x729/0x880 fs/bcachefs/rcu_pending.c:531 bkey_cached_free_noassert fs/bcachefs/btree_key_cache.c:115 [inline] bkey_cached_free+0x13a/0x1d0 fs/bcachefs/btree_key_cache.c:129 bch2_btree_key_cache_drop+0x12b/0x7d0 fs/bcachefs/btree_key_cache.c:637 bch2_trans_commit_write_locked fs/bcachefs/btree_trans_commit.c:785 [inline] do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:854 [inline] __bch2_trans_commit+0x746e/0x8880 fs/bcachefs/btree_trans_commit.c:1085 bch2_trans_commit fs/bcachefs/btree_update.h:241 [inline] bch2_trans_mark_metadata_bucket+0x566/0x1260 fs/bcachefs/buckets.c:1091 bch2_trans_mark_metadata_sectors fs/bcachefs/buckets.c:1108 [inline] __bch2_trans_mark_dev_sb fs/bcachefs/buckets.c:1148 [inline] bch2_trans_mark_dev_sb+0x3ed/0x7c0 fs/bcachefs/buckets.c:1176 bch2_trans_mark_dev_sbs_flags+0x49c/0x500 fs/bcachefs/buckets.c:1186 bch2_fs_initialize+0xd47/0x1550 fs/bcachefs/recovery.c:1235 bch2_fs_start+0xaa0/0xda0 fs/bcachefs/super.c:1214 bch2_fs_get_tree+0xb39/0x1520 fs/bcachefs/fs.c:2488 vfs_get_tree+0x8f/0x2b0 fs/super.c:1751 fc_mount fs/namespace.c:1274 [inline] do_new_mount_fc fs/namespace.c:3726 [inline] do_new_mount+0x302/0xa10 fs/namespace.c:3802 do_mount fs/namespace.c:4125 [inline] __do_sys_mount fs/namespace.c:4324 [inline] __se_sys_mount+0x313/0x410 fs/namespace.c:4301 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0ffb39034a 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:00007f0ffc257e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0ffc257ef0 RCX: 00007f0ffb39034a RDX: 0000200000000140 RSI: 0000200000000100 RDI: 00007f0ffc257eb0 RBP: 0000200000000140 R08: 00007f0ffc257ef0 R09: 0000000003000094 R10: 0000000003000094 R11: 0000000000000246 R12: 0000200000000100 R13: 00007f0ffc257eb0 R14: 0000000000005a84 R15: 0000200000000200