rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10441 ticks this GP) idle=90e4/1/0x4000000000000000 softirq=35543/35543 fqs=4380
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   918254          0            0
rcu: 	cputime:    35693      16796          157   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=24029 q=10624 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 524 jiffies! g24029 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=23089
rcu: rcu_preempt kthread starved for 525 jiffies! g24029 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:27160 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:queued_write_lock_slowpath+0x120/0x260
Code: a6 f6 f0 81 0b 00 01 00 00 43 0f b6 04 27 84 c0 74 35 89 d9 80 e1 07 80 c1 03 38 c1 7c 29 48 89 df e8 14 29 a6 f6 eb 1f f3 90 <43> 0f b6 04 27 84 c0 74 14 89 d9 80 e1 07 80 c1 03 38 c1 7c 08 48
RSP: 0018:ffffc900001e0500 EFLAGS: 00000206
RAX: 00000000000001ff RBX: ffffffff8f649c40 RCX: ffffffff8b7d17c8
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8f649c40
RBP: ffffc900001e05b0 R08: ffffffff8f649c43 R09: 1ffffffff1ec9388
R10: dffffc0000000000 R11: fffffbfff1ec9389 R12: dffffc0000000000
R13: 1ffff9200003c0a4 R14: ffffc900001e0550 R15: 1ffffffff1ec9388
FS:  0000000000000000(0000) GS:ffff8881a3c13000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8583a9242e CR3: 000000000df36000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 do_raw_write_lock+0x1f2/0x260
 ___neigh_create+0x209/0x2260
 ip6_finish_output2+0xb4d/0x16a0
 ndisc_send_skb+0xb54/0x1440
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:pv_native_safe_halt+0x13/0x20
Code: 53 e8 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d b3 d9 0d 00 f3 0f 1e fa fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000177de0 EFLAGS: 00000282
RAX: c6a46c924a63a400 RBX: ffffffff819695f8 RCX: c6a46c924a63a400
RDX: 0000000000000001 RSI: ffffffff8d9ba16b RDI: ffffffff8be33e80
RBP: ffffc90000177f20 R08: ffff888136632f9b R09: 1ffff11026cc65f3
R10: dffffc0000000000 R11: ffffed1026cc65f4 R12: ffffffff8fa3a830
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff1102001f000
 default_idle+0x13/0x20
 default_idle_call+0x74/0xb0
 do_idle+0x1e8/0x510
 cpu_startup_entry+0x44/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x147
 </TASK>
CPU: 0 UID: 0 PID: 8508 Comm: syz.6.628 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:perf_swevent_event+0x5a1/0x5e0
Code: 00 00 00 00 fc ff df 48 c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 65 48 8b 05 29 41 b1 10 48 3b 84 24 80 00 00 00 75 31 <48> 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 0c ad 8d 09 cc e8 e6
RSP: 0018:ffffc90000006c60 EFLAGS: 00000246
RAX: e0aba744a428c400 RBX: 1ffff92000000d94 RCX: ffff888109f38000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000006d30 R08: ffffc90000006a87 R09: 1ffff92000000d50
R10: dffffc0000000000 R11: fffff52000000d51 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88804b032a28 R15: ffff88803548d140
FS:  00007fb1d775d6c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f50e33d7dac CR3: 00000001341c6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_tp_event+0x4f6/0x1380
 perf_trace_run_bpf_submit+0xee/0x170
 perf_trace_lock+0x2f8/0x3b0
 lock_release+0x3b2/0x3e0
 is_module_text_address+0x18b/0x1e0
 kernel_text_address+0x94/0xe0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 kvfree_call_rcu+0xbb/0x410
 neigh_remove_one+0x46d/0x4c0
 ___neigh_create+0x485/0x2260
 ip6_finish_output2+0xb4d/0x16a0
 ndisc_send_skb+0xb54/0x1440
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:perf_prepare_sample+0x1868/0x2390
Code: 00 4c 8b 74 24 10 74 05 e8 25 82 34 00 49 89 9c 24 b0 00 00 00 43 80 3c 2f 00 74 08 4c 89 e7 e8 1e 81 34 00 41 80 4c 24 02 20 <4c> 89 f6 48 81 e6 00 00 40 00 31 ff e8 b7 05 d1 ff 4c 89 f0 48 25
RSP: 0018:ffffc900029cefa0 EFLAGS: 00000287
RAX: ffffffff81eebeb9 RBX: 0000000000000008 RCX: 0000000000080000
RDX: ffffc900214f9000 RSI: 0000000000003e2f RDI: 0000000000003e30
RBP: ffffc900029cf090 R08: ffff888109f38007 R09: 1ffff110213e7000
R10: dffffc0000000000 R11: ffffed10213e7001 R12: ffffc900029cf440
R13: dffffc0000000000 R14: 0000000000003001 R15: 1ffff92000539e88
 perf_event_output_forward+0x151/0x430
 __perf_event_overflow+0x830/0xe40
 perf_swevent_event+0x2f4/0x5e0
 perf_tp_event+0x4f6/0x1380
 perf_trace_run_bpf_submit+0xee/0x170
 perf_trace_lock+0x2f8/0x3b0
 lock_release+0x3b2/0x3e0
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_lru_noprof+0x1c6/0x3d0
 __d_alloc+0x36/0x7a0
 d_alloc_pseudo+0x21/0xc0
 alloc_file_pseudo+0xcc/0x210
 sock_alloc_file+0xb8/0x2e0
 __sys_socket+0x13d/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb1d698eba9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb1d775d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fb1d6bd5fa0 RCX: 00007fb1d698eba9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007fb1d6a11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb1d6bd6038 R14: 00007fb1d6bd5fa0 R15: 00007ffd554970c8
 </TASK>
