rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (1 GPs behind) idle=0b2/1/0x4000000000000000 softirq=18614/18626 fqs=0 
	(t=10500 jiffies g=12521 q=1335)
rcu: rcu_preempt kthread starved for 10500 jiffies! g12521 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:R  running task     stack:29232 pid:   13 ppid:     2 flags:0x00004000
Call Trace:
 context_switch kernel/sched/core.c:4339 [inline]
 __schedule+0x8de/0x2390 kernel/sched/core.c:5147
 schedule+0xcf/0x270 kernel/sched/core.c:5226
 schedule_timeout+0x11d/0x210 kernel/time/timer.c:1892
 rcu_gp_fqs_loop kernel/rcu/tree.c:2004 [inline]
 rcu_gp_kthread+0xd07/0x2300 kernel/rcu/tree.c:2177
 kthread+0x36f/0x450 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 14188 Comm: syz-executor.1 Not tainted 5.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mark_lock+0x1b8/0x1840 kernel/locking/lockdep.c:4449
Code: 7e 22 48 89 f8 48 c1 e8 03 0f b6 04 10 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 a3 07 00 00 41 f6 45 22 03 0f 84 de fe ff ff <bd> 00 02 00 00 41 bc 09 00 00 00 e9 db fe ff ff 48 c7 c0 e0 d6 79
RSP: 0018:ffffc900000072e8 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 1ffff92000000e63 RCX: 1ffffffff1c8279a
RDX: 0000000000000002 RSI: ffff8880449ac148 RDI: ffff8880449ac16a
RBP: ffff8880449ac16a R08: 0000000000000000 R09: ffffffff8e41086f
R10: 0000000000000001 R11: 0000000000078087 R12: 0000000000000008
R13: ffff8880449ac148 R14: 0000000000000040 R15: 0000000000000001
FS:  00007f769e501700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000053e038 CR3: 000000002abcd000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 mark_usage kernel/locking/lockdep.c:4401 [inline]
 __lock_acquire+0x8e4/0x5560 kernel/locking/lockdep.c:4856
 lock_acquire kernel/locking/lockdep.c:5512 [inline]
 lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5477
 seqcount_lockdep_reader_access include/linux/seqlock.h:103 [inline]
 ktime_get+0x50/0x160 kernel/time/timekeeping.c:827
 clockevents_program_event+0xe2/0x290 kernel/time/clockevents.c:326
 hrtimer_interrupt+0x3c0/0x920 kernel/time/hrtimer.c:1676
 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
 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:164 [inline]
RIP: 0010:unwind_next_frame+0x297/0x1ce0 arch/x86/kernel/unwind_orc.c:443
Code: 24 20 8b 0c 95 70 6a 71 8d 8d 56 01 48 b8 00 00 00 00 00 fc ff df 48 8d 3c 95 70 6a 71 8d 49 89 f8 49 c1 e8 03 45 0f b6 04 00 <48> 89 f8 83 e0 07 83 c0 03 44 38 c0 7c 30 45 84 c0 74 2b 48 89 54
RSP: 0018:ffffc90000007858 EFLAGS: 00000212
RAX: dffffc0000000000 RBX: 1ffff92000000f13 RCX: 000000000002b9c7
RDX: 000000000000a482 RSI: 000000000000a481 RDI: ffffffff8d73fc78
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000001
R10: fffff52000000f31 R11: 0000000000078087 R12: ffffc90000007978
R13: ffffc90000007965 R14: ffffc90000007930 R15: ffffffff81a4812a
 arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_set_track+0x1c/0x30 mm/kasan/common.c:46
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:357
 ____kasan_slab_free mm/kasan/common.c:360 [inline]
 ____kasan_slab_free mm/kasan/common.c:325 [inline]
 __kasan_slab_free+0xe0/0x110 mm/kasan/common.c:368
 kasan_slab_free include/linux/kasan.h:212 [inline]
 slab_free_hook mm/slub.c:1582 [inline]
 slab_free_freelist_hook+0xa1/0x180 mm/slub.c:1607
 slab_free mm/slub.c:3167 [inline]
 kmem_cache_free+0x82/0x350 mm/slub.c:3183
 mac80211_hwsim_beacon_tx+0x3f8/0x7c0 drivers/net/wireless/mac80211_hwsim.c:1829
 __iterate_interfaces+0x107/0x360 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0x5c/0xf0 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0xb7/0x160 drivers/net/wireless/mac80211_hwsim.c:1852
 __run_hrtimer kernel/time/hrtimer.c:1537 [inline]
 __hrtimer_run_queues+0x4d7/0xb00 kernel/time/hrtimer.c:1601
 hrtimer_run_softirq+0x176/0x340 kernel/time/hrtimer.c:1618
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:_raw_spin_lock+0x0/0x40 kernel/locking/spinlock.c:150
Code: e9 9a fe ff ff 4c 89 e7 e8 5d 7a 5c f9 eb 95 48 89 df e8 53 7a 5c f9 e9 20 ff ff ff 48 89 df e8 46 7a 5c f9 e9 c3 fe ff ff cc <55> 48 89 fd bf 01 00 00 00 e8 02 81 fe f8 45 31 c9 41 b8 01 00 00
RSP: 0018:ffffc900030afe20 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff88801074cf80 RCX: ffffffff8150c271
RDX: ffffed10284135b3 RSI: 0000000000000008 RDI: ffff88801074cf30
RBP: 1ffff92000615fc6 R08: 0000000000000001 R09: ffff88814209ad97
R10: ffffed10284135b2 R11: 0000000000078087 R12: ffff88801074cf30
R13: 0000000000040000 R14: ffff88801074cf00 R15: 0000000000000003
 spin_lock include/linux/spinlock.h:354 [inline]
 setfl fs/fcntl.c:80 [inline]
 do_fcntl+0x4e7/0xe10 fs/fcntl.c:355
 __do_sys_fcntl fs/fcntl.c:471 [inline]
 __se_sys_fcntl fs/fcntl.c:456 [inline]
 __x64_sys_fcntl+0x11a/0x160 fs/fcntl.c:456
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465d99
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:00007f769e501188 EFLAGS: 00000246 ORIG_RAX: 0000000000000048
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465d99
RDX: 0000000000042000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00000000004bcf27 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffdc57c980f R14: 00007f769e501300 R15: 0000000000022000
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 14188 Comm: syz-executor.1 Not tainted 5.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:halt arch/x86/include/asm/irqflags.h:99 [inline]
RIP: 0010:kvm_wait+0xc1/0x100 arch/x86/kernel/kvm.c:883
Code: 24 0c 48 8b 3c 24 eb 82 e8 ec 95 41 00 e9 07 00 00 00 0f 00 2d a0 a6 7b 07 fb f4 eb 98 e9 07 00 00 00 0f 00 2d 90 a6 7b 07 f4 <eb> bf 89 74 24 0c 48 89 3c 24 e8 20 1a 78 00 8b 74 24 0c 48 8b 3c
RSP: 0018:ffffc90000007cb0 EFLAGS: 00000046
RAX: 0000000000000003 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffffff8a978000
RBP: ffffffff8a978000 R08: 0000000000000001 R09: ffffffff8a978000
R10: fffffbfff152f000 R11: 0000000000078087 R12: 0000000000000000
R13: fffffbfff152f000 R14: 0000000000000001 R15: ffff8880ba035f80
FS:  00007f769e501700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000053e038 CR3: 000000002abcd000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 pv_wait arch/x86/include/asm/paravirt.h:597 [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:585 [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
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:117 [inline]
 _raw_spin_lock_irqsave+0x41/0x50 kernel/locking/spinlock.c:159
 rcu_report_qs_rdp kernel/rcu/tree.c:2334 [inline]
 rcu_check_quiescent_state kernel/rcu/tree.c:2398 [inline]
 rcu_core+0x211/0x1340 kernel/rcu/tree.c:2777
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:_raw_spin_lock+0x0/0x40 kernel/locking/spinlock.c:150
Code: e9 9a fe ff ff 4c 89 e7 e8 5d 7a 5c f9 eb 95 48 89 df e8 53 7a 5c f9 e9 20 ff ff ff 48 89 df e8 46 7a 5c f9 e9 c3 fe ff ff cc <55> 48 89 fd bf 01 00 00 00 e8 02 81 fe f8 45 31 c9 41 b8 01 00 00
RSP: 0018:ffffc900030afe20 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff88801074cf80 RCX: ffffffff8150c271
RDX: ffffed10284135b3 RSI: 0000000000000008 RDI: ffff88801074cf30
RBP: 1ffff92000615fc6 R08: 0000000000000001 R09: ffff88814209ad97
R10: ffffed10284135b2 R11: 0000000000078087 R12: ffff88801074cf30
R13: 0000000000040000 R14: ffff88801074cf00 R15: 0000000000000003
 spin_lock include/linux/spinlock.h:354 [inline]
 setfl fs/fcntl.c:80 [inline]
 do_fcntl+0x4e7/0xe10 fs/fcntl.c:355
 __do_sys_fcntl fs/fcntl.c:471 [inline]
 __se_sys_fcntl fs/fcntl.c:456 [inline]
 __x64_sys_fcntl+0x11a/0x160 fs/fcntl.c:456
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465d99
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:00007f769e501188 EFLAGS: 00000246 ORIG_RAX: 0000000000000048
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465d99
RDX: 0000000000042000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00000000004bcf27 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffdc57c980f R14: 00007f769e501300 R15: 0000000000022000
NMI backtrace for cpu 1
CPU: 1 PID: 14219 Comm: syz-executor.0 Not tainted 5.13.0-rc3-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+0x93/0xc2 lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x30/0x99 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x11f/0x170 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:341
 print_cpu_stall kernel/rcu/tree_stall.h:624 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:699 [inline]
 rcu_pending kernel/rcu/tree.c:3911 [inline]
 rcu_sched_clock_irq.cold+0x3f1/0x74b kernel/rcu/tree.c:2649
 update_process_times+0x13b/0x1c0 kernel/time/timer.c:1796
 tick_sched_handle+0x6f/0x130 kernel/time/tick-sched.c:226
 tick_sched_timer+0x132/0x210 kernel/time/tick-sched.c:1373
 __run_hrtimer kernel/time/hrtimer.c:1537 [inline]
 __hrtimer_run_queues+0x18a/0xb00 kernel/time/hrtimer.c:1601
 hrtimer_interrupt+0x2f9/0x920 kernel/time/hrtimer.c:1663
 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
 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:ip6_skb_dst_mtu include/net/ip6_route.h:268 [inline]
RIP: 0010:__ip6_finish_output net/ipv6/ip6_output.c:173 [inline]
RIP: 0010:__ip6_finish_output+0x174/0xbf0 net/ipv6/ip6_output.c:161
Code: 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 03 09 00 00 49 8b 5c 24 18 48 85 db 74 11 65 66 8b 05 74 0a f4 78 <66> 85 c0 0f 84 0a 04 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2
RSP: 0018:ffffc90000db0a90 EFLAGS: 00000286
RAX: dffffc0000000000 RBX: ffff888029b48e00 RCX: ffffffff870f63c0
RDX: 1ffff1100836fc53 RSI: ffff888029b48e00 RDI: ffff888041b7e298
RBP: ffff888028680000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: dffffc0000000000 R12: ffff888041b7e280
R13: ffff888029b48e00 R14: ffff888041b7e2d8 R15: ffff888031e64a00
 dst_output include/net/dst.h:448 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 ndisc_send_skb+0x97e/0x1490 net/ipv6/ndisc.c:508
 addrconf_rs_timer+0x24b/0x720 net/ipv6/addrconf.c:3877
 call_timer_fn+0x163/0x4b0 kernel/time/timer.c:1431
 expire_timers kernel/time/timer.c:1476 [inline]
 __run_timers.part.0+0x52a/0x8b0 kernel/time/timer.c:1745
 __run_timers kernel/time/timer.c:1726 [inline]
 run_timer_softirq+0x9c/0x190 kernel/time/timer.c:1758
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:plist_check_list lib/plist.c:51 [inline]
RIP: 0010:plist_check_head+0xc2/0x270 lib/plist.c:60
Code: 4d 8d 7c 24 08 49 bd 00 00 00 00 00 fc ff df 4d 89 fe 49 c1 ee 03 4d 01 ee eb 03 48 89 dd 48 89 e8 48 c1 e8 03 42 80 3c 28 00 <0f> 85 db 00 00 00 48 8b 5d 00 48 8d 7b 08 48 89 f8 48 c1 e8 03 42
RSP: 0018:ffffc900033bfa78 EFLAGS: 00000246
RAX: 1ffff9200062ef72 RBX: ffffc90003177b90 RCX: 1ffff920001c11a9
RDX: ffffc90003177b90 RSI: ffffc90000e08d48 RDI: ffffc90003177b98
RBP: ffffc90003177b90 R08: 0000000000000001 R09: ffffc90003177b90
R10: ffffed10021ae6f5 R11: 0000000000000000 R12: ffffc90000e08d48
R13: dffffc0000000000 R14: fffff520001c11aa R15: ffffc90000e08d50
 plist_del+0x20/0x420 lib/plist.c:114
 __unqueue_futex+0xa5/0x160 kernel/futex.c:1457
 mark_wake_futex+0xbe/0x140 kernel/futex.c:1475
 futex_wake+0x2d8/0x3f0 kernel/futex.c:1627
 do_futex+0x1ed/0x1240 kernel/futex.c:3737
 __do_sys_futex kernel/futex.c:3805 [inline]
 __se_sys_futex kernel/futex.c:3786 [inline]
 __x64_sys_futex+0x177/0x450 kernel/futex.c:3786
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465d99
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:00007fcba81c6218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000000056bf68 RCX: 0000000000465d99
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 000000000056bf6c
RBP: 000000000056bf60 R08: 000000000000000e R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf6c
R13: 00007ffc4009a9bf R14: 00007fcba81c6300 R15: 0000000000022000