rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10166 ticks this GP) idle=3f2/1/0x4000000000000000 softirq=36248/36250 fqs=0 
	(t=10500 jiffies g=54553 q=216)
rcu: rcu_preempt kthread starved for 10500 jiffies! g54553 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:28760 pid:   13 ppid:     2 flags:0x00004000
Call Trace:
 context_switch kernel/sched/core.c:4327 [inline]
 __schedule+0x90c/0x21a0 kernel/sched/core.c:5078
 schedule+0xcf/0x270 kernel/sched/core.c:5157
 schedule_timeout+0x148/0x250 kernel/time/timer.c:1878
 rcu_gp_fqs_loop kernel/rcu/tree.c:1940 [inline]
 rcu_gp_kthread+0xbbe/0x1d70 kernel/rcu/tree.c:2113
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
NMI backtrace for cpu 0
CPU: 0 PID: 18241 Comm: syz-executor.5 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0xfa/0x151 lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x1f4/0x230 kernel/rcu/tree_stall.h:337
 print_cpu_stall kernel/rcu/tree_stall.h:569 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:643 [inline]
 rcu_pending kernel/rcu/tree.c:3751 [inline]
 rcu_sched_clock_irq.cold+0x48e/0xedf kernel/rcu/tree.c:2580
 update_process_times+0x16d/0x200 kernel/time/timer.c:1782
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1369
 __run_hrtimer kernel/time/hrtimer.c:1519 [inline]
 __hrtimer_run_queues+0x1c0/0xe40 kernel/time/hrtimer.c:1583
 hrtimer_interrupt+0x334/0x940 kernel/time/hrtimer.c:1645
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1106
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline]
 sysvec_apic_timer_interrupt+0x48/0x100 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x2e/0x50 kernel/locking/spinlock.c:191
Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 aa 6c 57 f8 48 89 ef e8 82 21 58 f8 80 e7 02 74 06 e8 48 45 77 f8 fb bf 01 00 00 00 <e8> 0d 21 4c f8 65 8b 05 d6 b7 00 77 85 c0 74 03 5b 5d c3 e8 61 0d
RSP: 0018:ffffc90000007900 EFLAGS: 00000206
RAX: 0000000001041fcc RBX: 0000000000000246 RCX: ffffffff815828c7
RDX: 0000000000000000 RSI: 0000000000000303 RDI: 0000000000000001
RBP: ffff888014965610 R08: 0000000000000001 R09: ffffffff8fa8188f
R10: fffffbfff1f50311 R11: 0000000000000080 R12: dffffc0000000000
R13: 0000000000000080 R14: ffff8880145fa450 R15: 0000000000000000
 ieee80211_rx_h_mgmt net/mac80211/rx.c:3626 [inline]
 ieee80211_rx_handlers+0x3b5a/0xae60 net/mac80211/rx.c:3793
 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3823 [inline]
 ieee80211_prepare_and_rx_handle+0x22ad/0x5070 net/mac80211/rx.c:4537
 __ieee80211_rx_handle_packet net/mac80211/rx.c:4635 [inline]
 ieee80211_rx_list+0x930/0x2680 net/mac80211/rx.c:4819
 ieee80211_rx_napi+0xf7/0x3d0 net/mac80211/rx.c:4842
 ieee80211_rx include/net/mac80211.h:4524 [inline]
 ieee80211_tasklet_handler+0xd4/0x130 net/mac80211/main.c:235
 tasklet_action_common.constprop.0+0x1d7/0x2d0 kernel/softirq.c:555
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:343
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:226 [inline]
 __irq_exit_rcu kernel/softirq.c:420 [inline]
 irq_exit_rcu+0x134/0x200 kernel/softirq.c:432
 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:__sanitizer_cov_trace_pc+0x43/0x60 kernel/kcov.c:203
Code: f0 01 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 cc 14 00 00 85 c0 74 2b 8b 82 a8 14 00 00 83 f8 02 75 20 48 8b 8a b0 14 00 00 <8b> 92 ac 14 00 00 48 8b 01 48 83 c0 01 48 39 c2 76 07 48 89 34 c1
RSP: 0018:ffffc900028d7950 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffffc90000e083c8 RCX: ffffc90013fc5000
RDX: ffff8880211e5340 RSI: ffffffff83d94227 RDI: ffffc90000e083c8
RBP: ffffc9000111fb88 R08: 0000000000000001 R09: ffff8880211e535f
R10: ffffed100423ca6b R11: 0000000000000001 R12: ffffc90000e083c8
R13: 0000000000000000 R14: 1ffff9200051af43 R15: ffffc900028d7b70
 plist_check_head+0x47/0x2d0 lib/plist.c:59
 plist_add+0x2f/0x4d0 lib/plist.c:78
 __queue_me kernel/futex.c:2239 [inline]
 queue_me kernel/futex.c:2258 [inline]
 futex_wait_queue_me+0x1b1/0x570 kernel/futex.c:2589
 futex_wait+0x1db/0x580 kernel/futex.c:2708
 do_futex+0x15d/0x1700 kernel/futex.c:3736
 __do_sys_futex+0x2a2/0x470 kernel/futex.c:3799
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465ef9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f26b15e2218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000000056bf68 RCX: 0000000000465ef9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056bf68
RBP: 000000000056bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf6c
R13: 00007ffea58e0faf R14: 00007f26b15e2300 R15: 0000000000022000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 18240 Comm: syz-executor.5 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kvm_wait arch/x86/kernel/kvm.c:860 [inline]
RIP: 0010:kvm_wait+0x92/0xc0 arch/x86/kernel/kvm.c:837
Code: 02 48 89 da 83 e2 07 38 d0 7f 04 84 c0 75 35 0f b6 03 40 38 c5 75 13 e8 cc 28 47 00 e9 07 00 00 00 0f 00 2d 00 57 37 08 fb f4 <e8> b9 28 47 00 fb 5b 5d c3 c3 e9 07 00 00 00 0f 00 2d e8 56 37 08
RSP: 0018:ffffc900026d79d0 EFLAGS: 00000202
RAX: 000000000000af6d RBX: ffffc90000e08388 RCX: ffffffff815828c7
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000003 R08: 0000000000000001 R09: ffffffff8fa8185f
R10: fffffbfff1f5030b R11: 0000000000000001 R12: 0000000000000000
R13: fffff520001c1071 R14: 0000000000000001 R15: ffff8880b9d35bc0
FS:  0000000002439400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c023000 CR3: 0000000065448000 CR4: 0000000000350ee0
Call Trace:
 pv_wait arch/x86/include/asm/paravirt.h:564 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x8b8/0xb40 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:113
 spin_lock include/linux/spinlock.h:354 [inline]
 futex_wake+0x1b5/0x490 kernel/futex.c:1610
 do_futex+0x326/0x1700 kernel/futex.c:3741
 __do_sys_futex+0x2a2/0x470 kernel/futex.c:3799
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465ef9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffea58e1028 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000465ef9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 000000000056bf68
RBP: 000000000056bf60 R08: 0000001b2c0229e8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000005700a8
R13: 00007ffea58e1130 R14: 000000000056bf60 R15: 0000000000058c34