rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10498 ticks this GP) idle=e5cc/1/0x4000000000000000 softirq=40836/40836 fqs=4611
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1361176          0            0
rcu: 	cputime:    18470      34019           64   ==> 52520(ms)
rcu: 	(t=10503 jiffies g=53665 q=871 ncpus=2)
CPU: 1 PID: 12279 Comm: syz.0.1847 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:check_preemption_disabled+0x4b/0x110 lib/smp_processor_id.c:55
Code: 0d 52 8c 7e 75 f7 c1 ff ff ff 7f 74 1f 65 48 8b 0c 25 28 00 00 00 48 3b 4c 24 08 0f 85 c4 00 00 00 48 83 c4 10 5b 41 5e 41 5f <5d> c3 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 74
RSP: 0018:ffffc900001f04c8 EFLAGS: 00000282
RAX: 0000000000000001 RBX: ffffc900001f0501 RCX: bada6e7acf20e700
RDX: ffffc900001f05a8 RSI: ffffffff8c870526 RDI: ffffffff8b1c85a0
RBP: dffffc0000000000 R08: ffffc900001f0600 R09: 0000000000000000
R10: ffffc900001f05a8 R11: fffff5200003e0c1 R12: ffff888023985a00
R13: ffffc900001f05c8 R14: ffffc900001f05a8 R15: ffffc900001f0540
FS:  00007fab9b0ac6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fab9a24eddd CR3: 000000002f2df000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 in_exception_stack arch/x86/kernel/dumpstack_64.c:103 [inline]
 get_stack_info_noinstr+0x45/0x130 arch/x86/kernel/dumpstack_64.c:179
 get_stack_info+0x40/0x170 arch/x86/kernel/dumpstack_64.c:199
 __unwind_start+0x48b/0x7e0 arch/x86/kernel/unwind_orc.c:729
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xf8/0x190 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:522
 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:237
 kasan_slab_free include/linux/kasan.h:164 [inline]
 slab_free_hook mm/slub.c:1811 [inline]
 slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837
 slab_free mm/slub.c:3830 [inline]
 kmem_cache_free+0xf8/0x270 mm/slub.c:3852
 skb_kfree_head net/core/skbuff.c:947 [inline]
 skb_free_head net/core/skbuff.c:961 [inline]
 skb_release_data+0x60a/0x800 net/core/skbuff.c:991
 skb_release_all net/core/skbuff.c:1057 [inline]
 __kfree_skb net/core/skbuff.c:1071 [inline]
 kfree_skb_reason+0x10e/0x170 net/core/skbuff.c:1107
 __skb_queue_purge_reason include/linux/skbuff.h:3245 [inline]
 __skb_queue_purge include/linux/skbuff.h:3250 [inline]
 neigh_invalidate+0x394/0x450 net/core/neighbour.c:1067
 neigh_timer_handler+0x914/0xff0 net/core/neighbour.c:1151
 call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x542/0x800 kernel/time/timer.c:2023
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:preempt_count_sub+0x0/0x160 kernel/sched/core.c:5868
Code: 03 38 c1 0f 8c 6e ff ff ff 48 c7 c7 b0 23 8b 8e e8 a5 c4 82 00 89 df e9 5b ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <f3> 0f 1e fa 55 53 48 bb 00 00 00 00 00 fc ff df 48 c7 c0 80 84 2c
RSP: 0018:ffffc9000529fc98 EFLAGS: 00000206
RAX: dffffc0000000004 RBX: 0000000000000a06 RCX: bada6e7acf20e700
RDX: dffffc0000000000 RSI: ffffffff8acac960 RDI: 0000000000000001
RBP: ffffc9000529fd30 R08: ffffffff911c15ff R09: 1ffffffff22382bf
R10: dffffc0000000000 R11: fffffbfff22382c0 R12: dffffc0000000000
R13: 1ffff92000a53fb8 R14: ffff88801ffea000 R15: 1ffff92000a53f94
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock_irqrestore+0xc5/0x120 kernel/locking/spinlock.c:194
 __do_sys_perf_event_open kernel/events/core.c:12916 [inline]
 __se_sys_perf_event_open+0x183e/0x1c50 kernel/events/core.c:12567
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fab9a19c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fab9b0ac028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fab9a415fa0 RCX: 00007fab9a19c799
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140
RBP: 00007fab9a232c99 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fab9a416038 R14: 00007fab9a415fa0 R15: 00007ffff54ee3e8
 </TASK>
net_ratelimit: 3319 callbacks suppressed
icmp: detected local route for 10.128.1.83 during ICMP sending, src 10.128.0.163