rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2647 jiffies s: 38957 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18356 Comm: syz.2.6260 Not tainted 6.1.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:244 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x4/0x80 kernel/kcov.c:313
Code: 89 f8 89 f6 49 ff c2 4c 89 11 48 c7 44 0a 08 03 00 00 00 48 89 44 0a 10 48 89 74 0a 18 4c 89 44 0a 20 c3 0f 1f 00 4c 8b 04 24 <65> 48 8b 15 04 d5 77 7e 65 8b 05 05 d5 77 7e 25 00 01 ff 00 74 10
RSP: 0018:ffffc900000075b8 EFLAGS: 00000082
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88802d0d8000
RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000008
RBP: ffffc90000007698 R08: ffffffff819778d3 R09: fffffbfff1d413e6
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007fa52f44d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 0000000028e8f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 irq_work_run+0x93/0x350 kernel/irq_work.c:251
 __sysvec_irq_work+0xbb/0x360 arch/x86/kernel/irq_work.c:22
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x4a/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x540 kernel/rcu/tree_plugin.h:682
Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 6d 1a 8e 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a
RSP: 0018:ffffc90000007780 EFLAGS: 00000206
RAX: 613bf6bf93373300 RBX: 1ffff92000000ef8 RCX: ffffffff816b145a
RDX: dffffc0000000000 RSI: ffffffff8b0c1d40 RDI: ffffffff8b5f6d80
RBP: ffffc90000007858 R08: dffffc0000000000 R09: fffffbfff2256c6e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8d333500
R13: ffff88802d0d8458 R14: ffffc900000077c0 R15: 1ffff92000000ef4
 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ndisc_send_skb+0xdb6/0x15f0 net/ipv6/ndisc.c:521
 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3982
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:661
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:csd_lock_wait kernel/smp.c:424 [inline]
RIP: 0010:smp_call_function_many_cond+0x1fae/0x3460 kernel/smp.c:998
Code: 2f 44 89 ee 83 e6 01 31 ff e8 7e 48 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 0a e8 09 45 0b 00 e9 1b ff ff ff f3 90 <42> 0f b6 04 2b 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 fe fe ff ff
RSP: 0018:ffffc90003b271c0 EFLAGS: 00000293
RAX: ffffffff817f51e9 RBX: 1ffff110171e81b1 RCX: ffff88802d0d8000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003b275a0 R08: ffffffff817f51b2 R09: fffffbfff2256c4d
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880b8f40d88
 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1166
 text_poke_bp_batch+0x860/0x940
 text_poke_bp+0xc8/0x140 arch/x86/kernel/alternative.c:1771
 __static_call_transform+0x333/0x560 arch/x86/kernel/static_call.c:109
 arch_static_call_transform+0x4e/0x90 arch/x86/kernel/static_call.c:161
 __static_call_update+0xd4/0x5d0 kernel/static_call_inline.c:136
 tracepoint_update_call kernel/tracepoint.c:317 [inline]
 tracepoint_add_func+0x90c/0x9d0 kernel/tracepoint.c:358
 tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline]
 tracepoint_probe_register+0x101/0x160 kernel/tracepoint.c:531
 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline]
 perf_trace_event_init+0x449/0x940 kernel/trace/trace_event_perf.c:202
 perf_trace_init+0x23b/0x2d0 kernel/trace/trace_event_perf.c:226
 perf_tp_event_init+0x89/0x110 kernel/events/core.c:10060
 perf_try_init_event+0x135/0x3e0 kernel/events/core.c:11547
 perf_init_event kernel/events/core.c:11611 [inline]
 perf_event_alloc+0xf86/0x2100 kernel/events/core.c:11903
 __do_sys_perf_event_open kernel/events/core.c:12439 [inline]
 __se_sys_perf_event_open+0xb2e/0x4960 kernel/events/core.c:12331
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa52e58d169
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:00007fa52f44d038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fa52e7a5fa0 RCX: 00007fa52e58d169
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000400000000140
RBP: 00007fa52e60e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa52e7a5fa0 R15: 00007ffd2d9d9268
 </TASK>