rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (1 GPs behind) idle=6324/1/0x4000000000000000 softirq=17859/17860 fqs=15
rcu: 	(t=10500 jiffies g=7709 q=2123 ncpus=2)
rcu: rcu_preempt kthread starved for 10243 jiffies! g7709 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:26792 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5397 [inline]
 __schedule+0x16f5/0x4d00 kernel/sched/core.c:6786
 __schedule_loop kernel/sched/core.c:6864 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6879
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2054
 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2256
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6126 Comm: syz.3.37 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-dirty #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:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:139 [inline]
RIP: 0010:wrmsrq arch/x86/include/asm/msr.h:199 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:212
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 e2 d0 86 03 66
RSP: 0018:ffffc90000006268 EFLAGS: 00000046
RAX: 00000000000000f6 RBX: 0000000000000200 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: ffffc90000006340 R08: ffffc900000062c7 R09: 1ffff92000000c58
R10: dffffc0000000000 R11: fffff52000000c59 R12: ffff88801c6e5b01
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88804b0314f0
FS:  00007fb378cb56c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3315ffff CR3: 000000002949a000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __apic_send_IPI_self arch/x86/include/asm/apic.h:455 [inline]
 arch_irq_work_raise+0x6d/0x80 arch/x86/kernel/irq_work.c:31
 irq_work_raise kernel/irq_work.c:84 [inline]
 __irq_work_queue_local+0x1d7/0x550 kernel/irq_work.c:112
 irq_work_queue+0x99/0x140 kernel/irq_work.c:124
 __perf_event_overflow+0x87f/0xe10 kernel/events/core.c:10356
 perf_swevent_overflow kernel/events/core.c:10427 [inline]
 perf_swevent_event+0x2f4/0x5e0 kernel/events/core.c:-1
 perf_tp_event+0x4f6/0x1380 kernel/events/core.c:10972
 perf_trace_run_bpf_submit+0xee/0x170 kernel/events/core.c:10896
 do_perf_trace_lock include/trace/events/lock.h:50 [inline]
 perf_trace_lock+0x2f8/0x3b0 include/trace/events/lock.h:50
 __do_trace_lock_release include/trace/events/lock.h:69 [inline]
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882
 seqcount_lockdep_reader_access+0xdc/0x1c0 include/linux/seqlock.h:73
 ktime_get_update_offsets_now+0x60/0x3d0 kernel/time/timekeeping.c:2427
 hrtimer_update_base kernel/time/hrtimer.c:640 [inline]
 hrtimer_interrupt+0x132/0xaa0 kernel/time/hrtimer.c:1869
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline]
 __sysvec_apic_timer_interrupt+0x10b/0x410 arch/x86/kernel/apic/apic.c:1056
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1050
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:139 [inline]
RIP: 0010:wrmsrq arch/x86/include/asm/msr.h:199 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:212
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 e2 d0 86 03 66
RSP: 0018:ffffc90000006d28 EFLAGS: 00000246
RAX: 00000000000000f6 RBX: 0000000000000200 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: ffffc90000006e00 R08: ffffc90000006d87 R09: 1ffff92000000db0
R10: dffffc0000000000 R11: fffff52000000db1 R12: ffff88801c6e5b01
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88804b0314f0
 __apic_send_IPI_self arch/x86/include/asm/apic.h:455 [inline]
 arch_irq_work_raise+0x6d/0x80 arch/x86/kernel/irq_work.c:31
 irq_work_raise kernel/irq_work.c:84 [inline]
 __irq_work_queue_local+0x1d7/0x550 kernel/irq_work.c:112
 irq_work_queue+0x99/0x140 kernel/irq_work.c:124
 __perf_event_overflow+0x87f/0xe10 kernel/events/core.c:10356
 perf_swevent_overflow kernel/events/core.c:10427 [inline]
 perf_swevent_event+0x2f4/0x5e0 kernel/events/core.c:-1
 perf_tp_event+0x4f6/0x1380 kernel/events/core.c:10972
 perf_trace_run_bpf_submit+0xee/0x170 kernel/events/core.c:10896
 do_perf_trace_lock include/trace/events/lock.h:50 [inline]
 perf_trace_lock+0x2f8/0x3b0 include/trace/events/lock.h:50
 __do_trace_lock_release include/trace/events/lock.h:69 [inline]
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882
 rcu_lock_release include/linux/rcupdate.h:341 [inline]
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 ref_tracker_alloc+0x17d/0x460 lib/ref_tracker.c:209
 __netdev_tracker_alloc include/linux/netdevice.h:4341 [inline]
 netdev_hold include/linux/netdevice.h:4370 [inline]
 dst_init+0xd9/0x450 net/core/dst.c:52
 dst_alloc+0x12a/0x170 net/core/dst.c:93
 ip6_dst_alloc net/ipv6/route.c:342 [inline]
 icmp6_dst_alloc+0x75/0x420 net/ipv6/route.c:3324
 ndisc_send_skb+0x41f/0x1400 net/ipv6/ndisc.c:493
 addrconf_rs_timer+0x369/0x670 net/ipv6/addrconf.c:4036
 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1798 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x61a/0x860 kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
 handle_softirqs+0x286/0x870 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:139 [inline]
RIP: 0010:wrmsrq arch/x86/include/asm/msr.h:199 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:212
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 e2 d0 86 03 66
RSP: 0018:ffffc900029ff568 EFLAGS: 00000246
RAX: 00000000000000f6 RBX: 0000000000000200 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: ffffc900029ff640 R08: ffffc900029ff5c7 R09: 1ffff9200053feb8
R10: dffffc0000000000 R11: fffff5200053feb9 R12: ffff88801c6e5b01
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88804b0314f0
 __apic_send_IPI_self arch/x86/include/asm/apic.h:455 [inline]
 arch_irq_work_raise+0x6d/0x80 arch/x86/kernel/irq_work.c:31
 irq_work_raise kernel/irq_work.c:84 [inline]
 __irq_work_queue_local+0x1d7/0x550 kernel/irq_work.c:112
 irq_work_queue+0x99/0x140 kernel/irq_work.c:124
 __perf_event_overflow+0x87f/0xe10 kernel/events/core.c:10356
 perf_swevent_overflow kernel/events/core.c:10427 [inline]
 perf_swevent_event+0x2f4/0x5e0 kernel/events/core.c:-1
 perf_tp_event+0x4f6/0x1380 kernel/events/core.c:10972
 perf_trace_run_bpf_submit+0xee/0x170 kernel/events/core.c:10896
 do_perf_trace_lock include/trace/events/lock.h:50 [inline]
 perf_trace_lock+0x2f8/0x3b0 include/trace/events/lock.h:50
 __do_trace_lock_release include/trace/events/lock.h:69 [inline]
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882
 rcu_lock_release include/linux/rcupdate.h:341 [inline]
 rcu_read_unlock_sched include/linux/rcupdate.h:953 [inline]
 fd_install+0x2e6/0x540 fs/file.c:661
 __do_sys_perf_event_open kernel/events/core.c:13711 [inline]
 __se_sys_perf_event_open+0x1acd/0x1d70 kernel/events/core.c:13333
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb377d8eb69
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:00007fb378cb5038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fb377fb5fa0 RCX: 00007fb377d8eb69
RDX: ffefffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007fb377e11df1 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb377fb5fa0 R15: 00007ffe973dd018
 </TASK>
CPU: 1 UID: 0 PID: 6113 Comm: syz.2.31 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-dirty #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:seqcount_lockdep_reader_access+0x17e/0x1c0 include/linux/seqlock.h:75
Code: 00 4d 85 e4 75 16 e8 a1 5f 11 00 eb 15 e8 9a 5f 11 00 e8 f5 ca bf 09 4d 85 e4 74 ea e8 8b 5f 11 00 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3e 00 00 00 00 66 43 c7 44 3e 09 00 00 43 c6 44 3e 0b 00
RSP: 0018:ffffc900001e05a0 EFLAGS: 00000246
RAX: ffffffff81aebe35 RBX: 0000000000000000 RCX: ffff888109ef8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0650 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000200
R13: ffffffff8f62e920 R14: 1ffff9200003c0b4 R15: dffffc0000000000
FS:  00007fc119ac86c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4abf04d440 CR3: 000000010eaa6000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 ktime_get+0x3e/0x1f0 kernel/time/timekeeping.c:776
 ktime_get_ns include/linux/timekeeping.h:174 [inline]
 neigh_forced_gc net/core/neighbour.c:247 [inline]
 neigh_alloc net/core/neighbour.c:464 [inline]
 ___neigh_create+0x198/0x2260 net/core/neighbour.c:607
 ip6_finish_output2+0xb4d/0x16a0 net/ipv6/ip6_output.c:132
 NF_HOOK include/linux/netfilter.h:317 [inline]
 ndisc_send_skb+0xb47/0x1400 net/ipv6/ndisc.c:513
 addrconf_rs_timer+0x369/0x670 net/ipv6/addrconf.c:4036
 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1798 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x61a/0x860 kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
 handle_softirqs+0x286/0x870 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:finish_task_switch+0x26b/0x950 kernel/sched/core.c:5265
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 3f 25 df 09 e8 ba b9 35 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc9000267f718 EFLAGS: 00000286
RAX: 32e066e12a0c2900 RBX: 0000000000000000 RCX: 32e066e12a0c2900
RDX: 0000000000000006 RSI: ffffffff8d998701 RDI: ffffffff8be29f80
RBP: ffffc9000267f770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888109ef8000
R13: dffffc0000000000 R14: ffff88810a1c1cc0 R15: ffff88813663ab98
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x16fd/0x4d00 kernel/sched/core.c:6786
 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6966
 preempt_schedule+0xae/0xc0 kernel/sched/core.c:6990
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 smp_call_function_single+0x470/0x590 kernel/smp.c:681
 task_function_call kernel/events/core.c:121 [inline]
 perf_install_in_context+0x593/0x8f0 kernel/events/core.c:3101
 __do_sys_perf_event_open kernel/events/core.c:13691 [inline]
 __se_sys_perf_event_open+0x193a/0x1d70 kernel/events/core.c:13333
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc118b8eb69
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:00007fc119ac8038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc118db5fa0 RCX: 00007fc118b8eb69
RDX: ffefffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007fc118c11df1 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc118db5fa0 R15: 00007ffea5246ee8
 </TASK>
