[  155.361356][    C1] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:623
[  155.361539][    C1] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 23, name: ksoftirqd/1
[  155.361665][    C1] preempt_count: 100, expected: 0
[  155.361737][    C1] RCU nest depth: 0, expected: 0
[  155.361810][    C1] INFO: lockdep is turned off.
[  155.361886][    C1] Preemption disabled at:
[  155.361887][    C1] [<ffffffffa29be5e7>] handle_softirqs+0xf7/0x940
[  155.362041][    C1] CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Tainted: G        W           7.1.0-rc5-virtme #1 PREEMPT(full) 
[  155.362045][    C1] Tainted: [W]=WARN
[  155.362046][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  155.362048][    C1] Call Trace:
[  155.362050][    C1]  <TASK>
[  155.362051][    C1]  dump_stack_lvl+0x6f/0xa0
[  155.362057][    C1]  ? handle_softirqs+0xf7/0x940
[  155.362058][    C1]  __might_resched.cold+0x20d/0x2d6
[  155.362062][    C1]  ? perf_trace_sched_switch+0x7d0/0x7d0
[  155.362066][    C1]  __mutex_lock+0x118/0x2010
[  155.362070][    C1]  ? __tcf_chain_put+0x5f/0xb20
[  155.362074][    C1]  ? ww_mutex_lock+0x160/0x160
[  155.362077][    C1]  ? rcu_is_watching+0x15/0xd0
[  155.362080][    C1]  ? __tcf_chain_put+0x5f/0xb20
[  155.362082][    C1]  __tcf_chain_put+0x5f/0xb20
[  155.362083][    C1]  ? free_percpu.part.0+0x5f7/0xc80
[  155.362087][    C1]  tcf_action_rcu_free+0x14f/0x1a0
[  155.362089][    C1]  ? rcu_do_batch+0x2b4/0x1020
[  155.362091][    C1]  rcu_do_batch+0x2b6/0x1020
[  155.362093][    C1]  ? rcu_start_this_gp+0x270/0x490
[  155.362095][    C1]  ? trace_rcu_batch_end+0x330/0x330
[  155.362097][    C1]  ? trace_rcu_grace_period+0xcf/0x2c0
[  155.362099][    C1]  ? rcu_is_watching+0x15/0xd0
[  155.362100][    C1]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  155.362103][    C1]  ? trace_irq_disable.constprop.0+0x9b/0x180
[  155.362105][    C1]  rcu_core+0x2bf/0x640
[  155.362107][    C1]  handle_softirqs+0x1d8/0x940
[  155.362109][    C1]  ? _local_bh_enable+0xd0/0xd0
[  155.362111][    C1]  ? rcu_is_watching+0x15/0xd0
[  155.362112][    C1]  run_ksoftirqd+0x39/0x60
[  155.362114][    C1]  smpboot_thread_fn+0x2fb/0x9b0
[  155.362117][    C1]  ? sort_range+0x20/0x20
[  155.362118][    C1]  kthread+0x367/0x460
[  155.362121][    C1]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  155.362123][    C1]  ? kthread_affine_node+0x330/0x330
[  155.362124][    C1]  ret_from_fork+0x474/0x6b0
[  155.362127][    C1]  ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[  155.362129][    C1]  ? __switch_to+0x5a3/0xe00
[  155.362132][    C1]  ? kthread_affine_node+0x330/0x330
[  155.362133][    C1]  ret_from_fork_asm+0x11/0x20
[  155.362136][    C1]  </TASK>