rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4059 1-.... } 3492 jiffies s: 2037 root: 0x2/T
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4078 Comm: syz-executor.2 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:236 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x28/0x80 kernel/kcov.c:304
Code: 1f 00 4c 8b 04 24 65 48 8b 15 84 de 77 7e 65 8b 05 85 de 77 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba 1c 16 00 00 00 <74> 52 8b 82 f8 15 00 00 83 f8 03 75 47 48 8b 8a 00 16 00 00 44 8b
RSP: 0018:ffffc900001dfef8 EFLAGS: 00000046
RAX: 0000000000010103 RBX: ffff8880b992a588 RCX: 0000000000000001
RDX: ffff888057a83b80 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900001e0058 R08: ffffffff8179bc4d R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8880b992a4c0
R13: 0000000000000001 R14: ffff8880b992a4c0 R15: dffffc0000000000
FS:  00007fae70dc56c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fae70dc4f78 CR3: 0000000073836000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __run_hrtimer kernel/time/hrtimer.c:1701 [inline]
 __hrtimer_run_queues+0x6dd/0xe50 kernel/time/hrtimer.c:1750
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:unwind_next_frame+0x774/0x2220 arch/x86/kernel/unwind_orc.c:471
Code: 38 c1 0f 8c 38 04 00 00 be 02 00 00 00 49 89 fe 48 89 df e8 7e 62 a5 00 e9 63 19 00 00 48 8b 44 24 60 80 3c 38 00 4c 8b 24 24 <48> 8b 5c 24 68 74 0e 49 89 fe 48 89 df e8 9a 61 a5 00 4c 89 f7 48
RSP: 0018:ffffc900001e0260 EFLAGS: 00000246
RAX: 1ffff9200003c06f RBX: 0000000000000005 RCX: ffffffff8e8caa9c
RDX: ffffffff8efc86d0 RSI: ffffffff821569a2 RDI: dffffc0000000000
RBP: ffffffff8efc8736 R08: 0000000000000012 R09: ffffc900001e0430
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900001e0340
R13: ffffffff8efc873a R14: ffffffff8e8caa54 R15: 1ffffffff1df90e7
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422
 dst_alloc+0x12c/0x190 net/core/dst.c:88
 ip6_dst_alloc net/ipv6/route.c:344 [inline]
 icmp6_dst_alloc+0x7b/0x470 net/ipv6/route.c:3265
 ndisc_send_skb+0x344/0x14e0 net/ipv6/ndisc.c:489
 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3962
 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
 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:finish_task_switch+0x1d3/0x810 kernel/sched/core.c:5124
Code: 37 0b 00 48 83 c4 08 4c 89 f7 e8 98 30 00 00 0f 1f 44 00 00 4c 89 f7 e8 7b 20 36 09 e8 36 26 32 00 fb 49 8d bc 24 f8 15 00 00 <48> 89 f8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28
RSP: 0018:ffffc90013936c28 EFLAGS: 00000282
RAX: f675040165015a00 RBX: ffff88807eeb8034 RCX: ffffffff816acf0a
RDX: dffffc0000000000 RSI: ffffffff8aec01c0 RDI: ffff888057a85178
RBP: ffffc90013936c70 R08: dffffc0000000