================================
WARNING: inconsistent lock state
5.5.0-syzkaller #0 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
ksoftirqd/1/16 [HC0[0]:SC1[1]:HE1:SE0] takes:
ffff8880a27d41c8 (&(&local->client_conns_lock)->rlock){+.?.}, at: spin_lock include/linux/spinlock.h:338 [inline]
ffff8880a27d41c8 (&(&local->client_conns_lock)->rlock){+.?.}, at: rxrpc_put_one_client_conn net/rxrpc/conn_client.c:948 [inline]
ffff8880a27d41c8 (&(&local->client_conns_lock)->rlock){+.?.}, at: rxrpc_put_client_conn+0x4f4/0x8f0 net/rxrpc/conn_client.c:1001
{SOFTIRQ-ON-W} state was registered at:
  lock_acquire+0x194/0x410 kernel/locking/lockdep.c:4484
  __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
  _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:151
  spin_lock include/linux/spinlock.h:338 [inline]
  rxrpc_get_client_conn net/rxrpc/conn_client.c:304 [inline]
  rxrpc_connect_call+0x2d5/0x4700 net/rxrpc/conn_client.c:701
  rxrpc_new_client_call+0x82c/0x1670 net/rxrpc/call_object.c:290
  rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:595 [inline]
  rxrpc_do_sendmsg+0x886/0x186d net/rxrpc/sendmsg.c:652
  rxrpc_sendmsg+0x47e/0x5d0 net/rxrpc/af_rxrpc.c:586
  sock_sendmsg_nosec net/socket.c:652 [inline]
  sock_sendmsg+0xb5/0xf0 net/socket.c:672
  ____sys_sendmsg+0x3b0/0x950 net/socket.c:2343
  ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
  __sys_sendmmsg+0x160/0x370 net/socket.c:2487
  __do_sys_sendmmsg net/socket.c:2516 [inline]
  __se_sys_sendmmsg net/socket.c:2513 [inline]
  __x64_sys_sendmmsg+0x98/0x100 net/socket.c:2513
  do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294
  entry_SYSCALL_64_after_hwframe+0x49/0xbe
irq event stamp: 616960
hardirqs last  enabled at (616960): [<ffffffff8742805d>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (616960): [<ffffffff8742805d>] _raw_spin_unlock_irqrestore+0x7d/0xd0 kernel/locking/spinlock.c:191
hardirqs last disabled at (616959): [<ffffffff874281f4>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (616959): [<ffffffff874281f4>] _raw_spin_lock_irqsave+0x74/0xd0 kernel/locking/spinlock.c:159
softirqs last  enabled at (616890): [<ffffffff878006ea>] __do_softirq+0x6ea/0x9a8 kernel/softirq.c:319
softirqs last disabled at (616895): [<ffffffff8140b924>] run_ksoftirqd+0x94/0x100 kernel/softirq.c:603

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&(&local->client_conns_lock)->rlock);
  <Interrupt>
    lock(&(&local->client_conns_lock)->rlock);

 *** DEADLOCK ***

1 lock held by ksoftirqd/1/16:
 #0: ffffffff88fa4bc0 (rcu_callback){....}, at: rcu_do_batch kernel/rcu/tree.c:2176 [inline]
 #0: ffffffff88fa4bc0 (rcu_callback){....}, at: rcu_core+0x53e/0x1340 kernel/rcu/tree.c:2410

stack backtrace:
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.5.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x12d/0x187 lib/dump_stack.c:118
 print_usage_bug.cold.63+0x31b/0x36c kernel/locking/lockdep.c:3100
 valid_state kernel/locking/lockdep.c:3111 [inline]
 mark_lock_irq kernel/locking/lockdep.c:3308 [inline]
 mark_lock+0xb2c/0x11d0 kernel/locking/lockdep.c:3665
 mark_usage kernel/locking/lockdep.c:3565 [inline]
 __lock_acquire+0x1974/0x4ef0 kernel/locking/lockdep.c:3908
 lock_acquire+0x194/0x410 kernel/locking/lockdep.c:4484
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:151
 spin_lock include/linux/spinlock.h:338 [inline]
 rxrpc_put_one_client_conn net/rxrpc/conn_client.c:948 [inline]
 rxrpc_put_client_conn+0x4f4/0x8f0 net/rxrpc/conn_client.c:1001
 rxrpc_put_connection net/rxrpc/ar-internal.h:965 [inline]
 rxrpc_rcu_destroy_call+0x9b/0x1a0 net/rxrpc/call_object.c:572
 rcu_do_batch kernel/rcu/tree.c:2186 [inline]
 rcu_core+0x5bd/0x1340 kernel/rcu/tree.c:2410
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2419
 __do_softirq+0x262/0x9a8 kernel/softirq.c:292
 run_ksoftirqd+0x94/0x100 kernel/softirq.c:603
 smpboot_thread_fn+0x55f/0x8b0 kernel/smpboot.c:165
 kthread+0x331/0x3f0 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352