rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10499 ticks this GP) idle=abcc/1/0x4000000000000000 softirq=10603/10603 fqs=1032
rcu: hardirqs softirqs csw/system
rcu: number: 119188 0 0
rcu: cputime: 1809 3080 5 ==> 4900(ms)
rcu: (t=10501 jiffies g=9993 q=4873 ncpus=2)
CPU: 0 PID: 5991 Comm: syz.1.24 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:unwind_done arch/x86/include/asm/unwind.h:50 [inline]
RIP: 0010:unwind_next_frame+0x9f/0x2990 arch/x86/kernel/unwind_orc.c:475
Code: 65 38 4c 89 eb 48 c1 eb 03 42 0f b6 04 3b 84 c0 0f 85 f5 21 00 00 41 8b 6d 00 31 ff 89 ee e8 28 f3 4b 00 89 ac 24 94 00 00 00 <85> ed 74 76 4c 89 74 24 60 48 89 5c 24 18 bf 01 00 00 00 e8 19 4c
RSP: 0018:ffffc900000069f8 EFLAGS: 00000246
RAX: ffffffff813be468 RBX: 1ffff92000000d65 RCX: 0000000000000100
RDX: ffff888028c49e00 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000002 R08: ffff888028c49e00 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000100 R12: ffffc90000006b28
R13: ffffc90000006b28 R14: ffffc90000006b60 R15: dffffc0000000000
FS: 00007f864a6a76c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000007ce13000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
__unwind_start+0x5bb/0x730 arch/x86/kernel/unwind_orc.c:760
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+0x3e/0x60 mm/kasan/common.c:46
__kasan_record_aux_stack+0xaf/0xc0 mm/kasan/generic.c:492
__call_rcu_common kernel/rcu/tree.c:2721 [inline]
call_rcu+0x153/0x900 kernel/rcu/tree.c:2837
dst_cache_per_cpu_get+0x256/0x2c0 net/core/dst_cache.c:53
dst_cache_get_ip4+0x96/0x140 net/core/dst_cache.c:81
geneve_get_v4_rt+0x79f/0xcd0 drivers/net/geneve.c:839
geneve_xmit_skb drivers/net/geneve.c:934 [inline]
geneve_xmit+0x6e0/0x3530 drivers/net/geneve.c:1120
__netdev_start_xmit include/linux/netdevice.h:5003 [inline]
netdev_start_xmit include/linux/netdevice.h:5017 [inline]
xmit_one net/core/dev.c:3671 [inline]
dev_hard_start_xmit+0x269/0x790 net/core/dev.c:3687
__dev_queue_xmit+0x1d1e/0x3a30 net/core/dev.c:4518
dev_queue_xmit include/linux/netdevice.h:3174 [inline]
neigh_hh_output include/net/neighbour.h:531 [inline]
neigh_output include/net/neighbour.h:545 [inline]
ip6_finish_output2+0xe2a/0x1550 net/ipv6/ip6_output.c:138
NF_HOOK_COND include/linux/netfilter.h:305 [inline]
ip6_output+0x33b/0x530 net/ipv6/ip6_output.c:242
dst_output include/net/dst.h:470 [inline]
NF_HOOK include/linux/netfilter.h:316 [inline]
ndisc_send_skb+0xbb9/0x1480 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x36b/0x640 net/ipv6/addrconf.c:4043
call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x570/0x810 kernel/time/timer.c:2023
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
handle_softirqs+0x27d/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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__schedule+0x0/0x4700 kernel/sched/core.c:6601
Code: cc cc cc cc cc cc cc cc cc cc f3 0f 1e fa be 01 00 00 00 48 c7 c7 60 e1 75 8f e8 cb d1 41 f7 c3 cc cc cc cc cc cc cc cc cc cc 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48
RSP: 0018:ffffc90004d579d8 EFLAGS: 00000246
RAX: 1ffff1100518965a RBX: ffffffff8a9f4180 RCX: 0000000000080000
RDX: ffffc9000d7c5000 RSI: 0000000000006def RDI: 0000000000000001
RBP: ffffc90004d57a78 R08: ffffffff92223607 R09: 1ffffffff24446c0
R10: dffffc0000000000 R11: fffffbfff24446c1 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888028c4b2d0 R15: dffffc0000000000
preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6889
preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6913
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
smp_call_function_single+0x48d/0x5a0 kernel/smp.c:652
task_function_call kernel/events/core.c:120 [inline]
perf_install_in_context+0x5bb/0x920 kernel/events/core.c:2959
__do_sys_perf_event_open kernel/events/core.c:12951 [inline]
__se_sys_perf_event_open+0x180d/0x1d40 kernel/events/core.c:12593
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f864979f559
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:00007f864a6a7028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f8649a25fa0 RCX: 00007f864979f559
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007f8649836b20 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8649a26038 R14: 00007f8649a25fa0 R15: 00007ffe7dbe5a98