block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 PID: 7027 Comm: kworker/u5:1 Not tainted 5.6.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: knbd0-recv recv_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1e9/0x30e lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:442 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2914 [inline] validate_chain+0x3e6b/0x7be0 kernel/locking/lockdep.c:2935 __lock_acquire+0xc5a/0x1bc0 kernel/locking/lockdep.c:3954 lock_acquire+0x154/0x250 kernel/locking/lockdep.c:4484 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 __queue_work+0x58c/0xc60 include/linux/spinlock.h:378 queue_work_on+0xcb/0x1a0 kernel/workqueue.c:1515 queue_work include/linux/workqueue.h:507 [inline] nbd_mark_nsock_dead+0x275/0x530 drivers/block/nbd.c:271 recv_work+0x10d0/0x1170 drivers/block/nbd.c:783 process_one_work+0x76e/0xfd0 kernel/workqueue.c:2266 worker_thread+0xa7f/0x1450 kernel/workqueue.c:2412 kthread+0x317/0x340 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result 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