rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=be1/1/0x4000000000000002 softirq=28134/28137 fqs=2100 
	(detected by 1, t=10505 jiffies, g=35957, q=1815)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10826 Comm: syz.8.1877 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:perf_swevent_event+0x26/0x530 kernel/events/core.c:9597
Code: 0f 1f 40 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 20 48 89 cd 49 89 d6 49 89 f4 49 89 ff e8 c1 df e0 ff 4d 01 a7 b0 00 00 00 <48> 85 ed 0f 84 8a 00 00 00 48 b9 00 00 00 00 00 fc ff df 49 8d 9f
RSP: 0018:ffffc90000007428 EFLAGS: 00000006
RAX: ffffffff8196e45f RBX: 1ffff11017206a40 RCX: ffff88802bba8000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: ffff88804c8029c8
RBP: ffff8880b9035178 R08: dffffc0000000000 R09: ffffed1005775001
R10: ffffed1005775001 R11: 1ffff11005775000 R12: 0000000000000001
R13: ffff88804c8029c8 R14: ffffc90000007500 R15: ffff88804c8029c8
FS:  00007f406fe8c6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2de423 CR3: 0000000059960000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_tp_event+0x32c/0xb50 kernel/events/core.c:10033
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10007
 perf_trace_preemptirq_template+0x2be/0x380 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x84/0x480 kernel/rcu/tree_plugin.h:671
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 7d 16 9e 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90000007960 EFLAGS: 00000206
RAX: 3e96014a01f81300 RBX: 1ffff92000000f30 RCX: 3e96014a01f81300
RDX: dffffc0000000000 RSI: ffffffff8a0b15c0 RDI: ffffffff8a599340
RBP: ffffc90000007a40 R08: dffffc0000000000 R09: fffffbfff1ff6e39
R10: fffffbfff1ff6e39 R11: 1ffffffff1ff6e38 R12: ffffffff8c120800
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:771 [inline]
 ipv6_get_lladdr+0x333/0x3b0 net/ipv6/addrconf.c:1896
 addrconf_rs_timer+0x268/0x600 net/ipv6/addrconf.c:3956
 call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x525/0x7c0 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:do_futex+0xda7/0x1240 kernel/futex/core.c:4011
Code: 8b 4c 24 0c 44 8b 44 24 30 6a 01 e8 a3 0f 00 00 48 83 c4 08 48 98 48 c7 84 24 c0 00 00 00 0e 36 e0 45 48 8b 8c 24 88 00 00 00 <48> ba 00 00 00 00 00 fc ff df 48 c7 04 11 00 00 00 00 66 c7 44 11
RSP: 0018:ffffc9000307fca0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffff9200060ffac
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88801f925968
RBP: ffffc9000307fe08 R08: dffffc0000000000 R09: ffffed1003f24b2e
R10: ffffed1003f24b2e R11: 1ffff11003f24b2d R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
 __do_sys_futex kernel/futex/core.c:4059 [inline]
 __se_sys_futex+0x3a3/0x430 kernel/futex/core.c:4040
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f4071c24be9
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:00007f406fe8c0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f4071e4bfa8 RCX: 00007f4071c24be9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4071e4bfac
RBP: 00007f4071e4bfa0 R08: 00220d1602b62520 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4071e4c038 R14: 00007ffee36322c0 R15: 00007ffee36323a8
 </TASK>