rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (1 GPs behind) idle=fecc/1/0x4000000000000000 softirq=21975/21978 fqs=5075
rcu: hardirqs softirqs csw/system
rcu: number: 1351403 0 0
rcu: cputime: 17321 35158 34 ==> 52480(ms)
rcu: (t=10500 jiffies g=20089 q=3086 ncpus=2)
CPU: 0 PID: 6785 Comm: syz.2.19 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:104 [inline]
RIP: 0010:__local_bh_enable_ip+0x136/0x1c0 kernel/softirq.c:413
Code: 8a e8 be a0 1d 09 65 66 8b 05 86 22 b2 7e 66 85 c0 75 54 bf 01 00 00 00 e8 67 db 09 00 e8 62 60 3a 00 fb 65 8b 05 52 22 b2 7e <85> c0 75 05 e8 31 08 af ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc900000070e0 EFLAGS: 00000282
RAX: 0000000000000500 RBX: 0000000000000201 RCX: 0ce359463e92cf00
RDX: dffffc0000000000 RSI: ffffffff8aaabce0 RDI: ffffffff8afc6f80
RBP: ffffc90000007170 R08: ffffffff90da9607 R09: 1ffffffff21b52c0
R10: dffffc0000000000 R11: fffffbfff21b52c1 R12: ffffffff859c7bb7
R13: ffff88802f144280 R14: dffffc0000000000 R15: 1ffff92000000e1c
FS: 00007f50d7d016c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000060b8f000 CR4: 00000000003506f0
Call Trace:
spin_unlock_bh include/linux/spinlock.h:396 [inline]
ptr_ring_produce_bh include/linux/ptr_ring.h:164 [inline]
wg_queue_enqueue_per_device_and_peer drivers/net/wireguard/queueing.h:174 [inline]
wg_packet_create_data drivers/net/wireguard/send.c:320 [inline]
wg_packet_send_staged_packets+0x1077/0x1800 drivers/net/wireguard/send.c:388
wg_xmit+0x9f2/0xf00 drivers/net/wireguard/device.c:218
__netdev_start_xmit include/linux/netdevice.h:4943 [inline]
netdev_start_xmit include/linux/netdevice.h:4957 [inline]
xmit_one net/core/dev.c:3619 [inline]
dev_hard_start_xmit+0x246/0x740 net/core/dev.c:3635
__dev_queue_xmit+0x1a64/0x35a0 net/core/dev.c:4425
neigh_output include/net/neighbour.h:543 [inline]
ip6_finish_output2+0xe2e/0x1650 net/ipv6/ip6_output.c:141
dst_output include/net/dst.h:467 [inline]
NF_HOOK include/linux/netfilter.h:304 [inline]
ndisc_send_skb+0xbed/0x14b0 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x2bc/0x600 net/ipv6/addrconf.c:4006
call_timer_fn+0x16e/0x530 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x52d/0x7d0 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+0xc7/0x190 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:smp_call_function_single+0x435/0x580 kernel/smp.c:654
Code: e0 45 43 c7 04 2e 00 00 00 00 4b c7 44 2e 08 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 a0 00 00 00 0f 85 80 00 00 00 <44> 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 54 ec 0a
RSP: 0018:ffffc900037c7ae0 EFLAGS: 00000246
RAX: 0ce359463e92cf00 RBX: 0000000080000000 RCX: ffff888021915a00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc900037c7bd0 R08: ffffffff90da961f R09: 1ffffffff21b52c3
R10: dffffc0000000000 R11: fffffbfff21b52c4 R12: 0000000000000000
R13: dffffc0000000000 R14: 1ffff920006f8f60 R15: 1ffff920006f8f60
task_function_call kernel/events/core.c:120 [inline]
perf_install_in_context+0x591/0x8e0 kernel/events/core.c:2948
__do_sys_perf_event_open kernel/events/core.c:12915 [inline]
__se_sys_perf_event_open+0x17fa/0x1c20 kernel/events/core.c:12567
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f50d6d8f6c9
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:00007f50d7d01038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f50d6fe5fa0 RCX: 00007f50d6d8f6c9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007f50d6e11f91 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f50d6fe6038 R14: 00007f50d6fe5fa0 R15: 00007ffee6cf0da8