rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10038 ticks this GP) idle=b92/1/0x4000000000000000 softirq=16623/16624 fqs=0 
	(t=10502 jiffies g=22909 q=29)
rcu: rcu_preempt kthread starved for 10503 jiffies! g22909 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:28888 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:296
NMI backtrace for cpu 0
CPU: 0 PID: 11533 Comm: syz-executor896 Not tainted 5.11.0-rc5-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+0x107/0x163 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:1085 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1102
 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:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:629
RIP: 0010:mac80211_hwsim_addr_match+0x13/0x180 drivers/net/wireless/mac80211_hwsim.c:1050
Code: 13 fd 46 03 31 c0 5b c3 e8 3a 81 a0 fc eb ec 0f 1f 84 00 00 00 00 00 41 56 41 55 49 89 f5 41 54 49 bc 00 00 00 00 00 fc ff df <55> 53 48 89 fb 48 83 ec 60 48 89 e5 48 c7 04 24 b3 8a b5 41 48 c7
RSP: 0018:ffffc90000007b88 EFLAGS: 00000246
RAX: ffff888029215050 RBX: ffff88802f9a3160 RCX: 0000000000000100
RDX: ffff8880206fd340 RSI: ffff888029215054 RDI: ffff88802f9a3160
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffff88802fae447f
R10: ffff88802fae43c0 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888029215054 R14: ffff88801b46b160 R15: ffff88802fae42f0
 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb3d/0x1330 drivers/net/wireless/mac80211_hwsim.c:1498
 mac80211_hwsim_tx_frame+0x14f/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1705
 mac80211_hwsim_beacon_tx+0x4ba/0x910 drivers/net/wireless/mac80211_hwsim.c:1759
 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1782
 __run_hrtimer kernel/time/hrtimer.c:1519 [inline]
 __hrtimer_run_queues+0x609/0xe40 kernel/time/hrtimer.c:1583
 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1600
 __do_softirq+0x2bc/0xa29 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:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:629
RIP: 0010:pv_unhash kernel/locking/qspinlock_paravirt.h:246 [inline]
RIP: 0010:__pv_queued_spin_unlock_slowpath+0xc3/0x2b0 kernel/locking/qspinlock_paravirt.h:517
Code: 83 fc 1f 0f 87 16 37 60 07 b8 01 00 00 00 44 89 e1 d3 e0 48 98 48 39 c5 0f 83 95 01 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <0f> 85 6e 01 00 00 48 8b 03 49 39 c5 75 96 48 8d 7b 08 48 b8 00 00
RSP: 0018:ffffc9000aac7a80 EFLAGS: 00000246
RAX: 1ffff11047ffcce8 RBX: ffff88823ffe6740 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffc90000e0f508
RBP: 0000000000000000 R08: ffff88823ffe6000 R09: ffffc90000e0f50b
R10: fffff520001c1ea1 R11: 0000000000000000 R12: 0000000000000008
R13: ffffc90000e0f508 R14: 0000000000000074 R15: dffffc0000000000
 __raw_callee_save___pv_queued_spin_unlock_slowpath+0x11/0x20
 .slowpath+0x9/0xe
 pv_queued_spin_unlock arch/x86/include/asm/paravirt.h:559 [inline]
 queued_spin_unlock arch/x86/include/asm/qspinlock.h:56 [inline]
 do_raw_spin_unlock+0x171/0x230 kernel/locking/spinlock_debug.c:139
 __raw_spin_unlock include/linux/spinlock_api_smp.h:151 [inline]
 _raw_spin_unlock+0x1a/0x40 kernel/locking/spinlock.c:183
 spin_unlock include/linux/spinlock.h:394 [inline]
 futex_wake+0x3df/0x490 kernel/futex.c:1629
 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+0x44/0xa9
RIP: 0033:0x44d869
Code: e8 1c e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 0b 00 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f13ce5bccf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000006eaa08 RCX: 000000000044d869
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006eaa0c
RBP: 00000000006eaa00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006eaa0c
R13: 00007ffe16db5b5f R14: 00007f13ce5bd9c0 R15: 20c49ba5e353f7cf