BUG: MAX_LOCK_DEPTH too low! turning off the locking correctness validator. depth: 48 max: 48! 48 locks held by syz-executor.2/7544: #0: ffff88805b016420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409 #1: ffff88805b91a658 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #1: ffff88805b91a658 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: do_truncate+0x20c/0x310 fs/open.c:63 #2: ffff88805ae80ab8 (&c->snapshot_create_lock){.+.+}-{3:3}, at: bch2_truncate+0x16c/0x2c0 fs/bcachefs/io_misc.c:290 #3: ffff88805ae842d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:116 [inline] #3: ffff88805ae842d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:215 [inline] #3: ffff88805ae842d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: bch2_trans_srcu_lock+0xb1/0x220 fs/bcachefs/btree_iter.c:3021 #4: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #4: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #5: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #5: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #6: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #6: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #7: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #7: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #8: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #8: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #9: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #9: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #10: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #10: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #11: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #11: ffff888140e8a870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #12: ffff888140e8a870 (&dev->mutex ){....}-{3:3} , at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] , at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #13: ffff88805b9c25d0 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #13: ffff88805b9c25d0 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #14: ffff88805b9c2c88 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #14: ffff88805b9c2c88 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #15: ffff88805b9c21c8 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #15: ffff88805b9c21c8 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #16: ffff88805b9c2070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #16: ffff88805b9c2070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #17: ffff88805b9c2320 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #17: ffff88805b9c2320 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #18: ffff88805b9c2478 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #18: ffff88805b9c2478 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #19: ffff88805b9c2f38 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #19: ffff88805b9c2f38 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #20: ffff88805b9c3090 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #20: ffff88805b9c3090 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #21: ffff88802a864870 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline] #21: ffff88802a864870 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline] #21: ffff88802a864870 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline] #21: ffff88802a864870 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177 #22: ffff88802a866870 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #22: ffff88802a866870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #23: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline] #23: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline] #23: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline] #23: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177 #24: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline] #24: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline] #24: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline] #24: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177 #25: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline] #25: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline] #25: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline] #25: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177 #26: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline] #26: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline] #26: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline] #26: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177 #27: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline] #27: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline] #27: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline] #27: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177 #28: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline] #28: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline] #28: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline] #28: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177 #29: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #29: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #30: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #30: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #31: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #31: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #32: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #32: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #33: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #33: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #34: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #34: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #35: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #35: ffff88801f944870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x675/0x9c0 fs/bcachefs/btree_locking.c:509 #36: ffff88807d407870 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline] #36: ffff88807d407870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507 #37: ffff88805aea68d0 (&c->gc_lock){.+.+}-{3:3}, at: bch2_btree_update_start+0x68d/0x1500 fs/bcachefs/btree_update_interior.c:1195 #38: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_copy fs/bcachefs/btree_iter.c:1228 [inline] #38: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_clone fs/bcachefs/btree_iter.c:1236 [inline] #38: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_path_make_mut+0x1ec/0x570 fs/bcachefs/btree_iter.c:1249 #39: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_copy fs/bcachefs/btree_iter.c:1228 [inline] #39: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_clone fs/bcachefs/btree_iter.c:1236 [inline] #39: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_path_make_mut+0x1ec/0x570 fs/bcachefs/btree_iter.c:1249 #40: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_copy fs/bcachefs/btree_iter.c:1228 [inline] #40: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: btree_path_clone fs/bcachefs/btree_iter.c:1236 [inline] #40: ffff88802a867070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_path_make_mut+0x1ec/0x570 fs/bcachefs/btree_iter.c:1249 #41: ffff88805721d340 (&dev->mutex){....}-{3:3}, at: six_trylock_intent fs/bcachefs/six.h:366 [inline] #41: ffff88805721d340 (&dev->mutex){....}-{3:3}, at: bkey_cached_alloc fs/bcachefs/btree_key_cache.c:290 [inline] #41: ffff88805721d340 (&dev->mutex){....}-{3:3}, at: btree_key_cache_create fs/bcachefs/btree_key_cache.c:330 [inline] #41: ffff88805721d340 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_cached_slowpath+0x1559/0x48c0 fs/bcachefs/btree_key_cache.c:485 #42: ffff88802e34e870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_nopath_nofail fs/bcachefs/btree_locking.h:228 [inline] #42: ffff88802e34e870 (&dev->mutex){....}-{3:3}, at: bch2_btree_node_alloc+0x114/0xe80 fs/bcachefs/btree_update_interior.c:392 #43: ffff88802e34e870 (&dev->mutex){....}-{3:3}, at: btree_split+0x1b88/0x6980 fs/bcachefs/btree_update_interior.c:1674 #44: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #44: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #44: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: __queue_work+0x198/0xee0 kernel/workqueue.c:2283 #45: ffff8880b943e2f8 (&pool->lock){-.-.}-{2:2}, at: __queue_work+0x6e5/0xee0 #46: ffff888015fee418 (&p->pi_lock){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:553 [inline] #46: ffff888015fee418 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xb0/0x1470 kernel/sched/core.c:4262 #47: ffff8880b943e758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559 INFO: lockdep is turned off. CPU: 0 PID: 7544 Comm: syz-executor.2 Not tainted 6.10.0-rc4-syzkaller-00217-g35bb670d65fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 __lock_acquire+0x10c3/0x1fd0 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559 raw_spin_rq_lock kernel/sched/sched.h:1406 [inline] rq_lock kernel/sched/sched.h:1702 [inline] ttwu_queue kernel/sched/core.c:4055 [inline] try_to_wake_up+0x7cc/0x1470 kernel/sched/core.c:4378 kick_pool+0x45c/0x620 kernel/workqueue.c:1279 __queue_work+0xc22/0xee0 kernel/workqueue.c:2360 queue_work_on+0x1c2/0x380 kernel/workqueue.c:2410 queue_work include/linux/workqueue.h:621 [inline] __bch2_btree_node_write+0x37c8/0x46b0 fs/bcachefs/btree_io.c:2232 bch2_btree_node_write+0x63/0x1f0 fs/bcachefs/btree_io.c:2307 btree_split+0x51ba/0x6980 fs/bcachefs/btree_update_interior.c:1706 bch2_btree_split_leaf+0x158/0x810 fs/bcachefs/btree_update_interior.c:1857 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_extent_update+0x4c0/0xbb0 fs/bcachefs/io_write.c:326 bch2_fpunch_at+0x87c/0x1020 fs/bcachefs/io_misc.c:184 __bch2_resume_logged_op_truncate+0x715/0xaa0 fs/bcachefs/io_misc.c:260 bch2_truncate+0x1cf/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:3654 [inline] path_openat+0x2a3d/0x3280 fs/namei.c:3807 do_filp_open+0x235/0x490 fs/namei.c:3834 do_sys_openat2+0x13e/0x1d0 fs/open.c:1405 do_sys_open fs/open.c:1420 [inline] __do_sys_creat fs/open.c:1496 [inline] __se_sys_creat fs/open.c:1490 [inline] __x64_sys_creat+0x123/0x170 fs/open.c:1490 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: 0033:0x7f176887d0a9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f17695940c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f17689b4050 RCX: 00007f176887d0a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007f17688ec074 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f17689b4050 R15: 00007fff54802768