[  125.846585][    C2] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:623
[  125.846820][    C2] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/2
[  125.847016][    C2] preempt_count: 101, expected: 0
[  125.847141][    C2] RCU nest depth: 0, expected: 0
[  125.847266][    C2] INFO: lockdep is turned off.
[  125.847394][    C2] Preemption disabled at:
[  125.847396][    C2] [<0000000000000000>] 0x0
[  125.847635][    C2] CPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) 
[  125.847640][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  125.847642][    C2] Call Trace:
[  125.847643][    C2]  <IRQ>
[  125.847645][    C2]  dump_stack_lvl+0x6f/0xa0
[  125.847653][    C2]  __might_resched.cold+0x20d/0x2d6
[  125.847656][    C2]  ? default_idle_call+0x6e/0xb0
[  125.847661][    C2]  ? perf_trace_sched_switch+0x7d0/0x7d0
[  125.847665][    C2]  ? start_secondary+0x204/0x2b0
[  125.847668][    C2]  __mutex_lock+0x118/0x2010
[  125.847670][    C2]  ? __tcf_chain_put+0x5f/0xb20
[  125.847674][    C2]  ? ww_mutex_lock+0x160/0x160
[  125.847677][    C2]  ? __tcf_chain_put+0x5f/0xb20
[  125.847679][    C2]  __tcf_chain_put+0x5f/0xb20
[  125.847680][    C2]  ? free_percpu.part.0+0x5f7/0xc80
[  125.847684][    C2]  tcf_action_rcu_free+0x14f/0x1a0
[  125.847686][    C2]  ? rcu_do_batch+0x2b4/0x1020
[  125.847689][    C2]  rcu_do_batch+0x2b6/0x1020
[  125.847692][    C2]  ? trace_rcu_batch_end+0x330/0x330
[  125.847694][    C2]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  125.847697][    C2]  ? do_raw_spin_unlock+0x59/0x250
[  125.847700][    C2]  ? trace_hardirqs_on+0x36/0x40
[  125.847702][    C2]  ? _raw_spin_unlock_irqrestore+0x40/0x80
[  125.847704][    C2]  rcu_core+0x2bf/0x640
[  125.847706][    C2]  handle_softirqs+0x1d8/0x940
[  125.847709][    C2]  ? clockevents_tick_resume+0x60/0x60
[  125.847712][    C2]  ? _local_bh_enable+0xd0/0xd0
[  125.847713][    C2]  ? rcu_is_watching+0x15/0xd0
[  125.847715][    C2]  ? lock_release+0x17c/0x1f0
[  125.847717][    C2]  __irq_exit_rcu+0x103/0x1c0
[  125.847718][    C2]  irq_exit_rcu+0xe/0x30
[  125.847720][    C2]  sysvec_apic_timer_interrupt+0x9d/0xe0
[  125.847722][    C2]  </IRQ>
[  125.847723][    C2]  <TASK>
[  125.847723][    C2]  ? rcu_is_watching+0x15/0xd0
[  125.847725][    C2]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  125.847728][    C2] RIP: 0010:pv_native_safe_halt+0xf/0x10
[  125.847731][    C2] Code: 48 8b 3d 44 d3 00 02 e8 1f 00 00 00 48 2b 05 c8 71 a3 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 43 f4 22 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
[  125.847734][    C2] RSP: 0018:ffa0000000157de8 EFLAGS: 00000246
[  125.847738][    C2] RAX: 0000000000000002 RBX: ff11000001bb4640 RCX: 0000000000000001
[  125.847739][    C2] RDX: 0000000000000002 RSI: ffffffffac66f640 RDI: ffffffffa9ed9667
[  125.847740][    C2] RBP: 0000000000000000 R08: ffffffffac2694f1 R09: 1fe2200005d2639a
[  125.847741][    C2] R10: 0000000000000002 R11: 0000000000000000 R12: 1ff400000002afc0
[  125.847741][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[  125.847743][    C2]  ? ct_kernel_exit.constprop.0+0x101/0x160
[  125.847745][    C2]  ? cpuidle_idle_call.constprop.0+0x237/0x410
[  125.847749][    C2]  default_idle+0x9/0x10
[  125.847750][    C2]  default_idle_call+0x6e/0xb0
[  125.847752][    C2]  cpuidle_idle_call.constprop.0+0x237/0x410
[  125.847754][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[  125.847755][    C2]  ? mark_tsc_async_resets+0x30/0x30
[  125.847757][    C2]  ? rcu_is_watching+0x15/0xd0
[  125.847758][    C2]  do_idle+0xf5/0x160
[  125.847760][    C2]  cpu_startup_entry+0x53/0x70
[  125.847761][    C2]  start_secondary+0x204/0x2b0
[  125.847763][    C2]  ? set_cpu_sibling_map+0x1fb0/0x1fb0
[  125.847765][    C2]  common_startup_64+0x13e/0x148
[  125.847769][    C2]  </TASK>