rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1 GPs behind) idle=dddc/1/0x4000000000000000 softirq=72654/72655 fqs=5246
rcu: hardirqs softirqs csw/system
rcu: number: 1504904 0 0
rcu: cputime: 16938 35540 63 ==> 52510(ms)
rcu: (t=10503 jiffies g=93513 q=797 ncpus=2)
CPU: 1 PID: 17689 Comm: syz.0.3810 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:percpu_counter_add_batch+0x25c/0x2a0 lib/percpu_counter.c:103
Code: 4d 85 ff 75 16 e8 04 4e 27 fd eb 15 e8 fd 4d 27 fd e8 d8 51 37 06 4d 85 ff 74 ea e8 ee 4d 27 fd fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 04 26 00 00 00 00 43 c7 44 26 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc900001f0100 EFLAGS: 00000246
RAX: ffffffff846090b2 RBX: 0000000000000000 RCX: ffff88806a1ada00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001f01f0 R08: ffffffff922235f7 R09: 1ffffffff24446be
R10: dffffc0000000000 R11: fffffbfff24446bf R12: dffffc0000000000
R13: 0000000000000000 R14: 1ffff9200003e028 R15: 0000000000000200
FS: 00007f293c50b6c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000020b38000 CR4: 00000000003506e0
DR0: 0000200000000180 DR1: 0000200000000180 DR2: 0000200000000380
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
dst_entries_add include/net/dst_ops.h:59 [inline]
dst_count_dec net/core/dst.c:165 [inline]
dst_release+0x121/0x1a0 net/core/dst.c:179
refdst_drop include/net/dst.h:273 [inline]
skb_dst_drop include/net/dst.h:285 [inline]
skb_release_head_state+0x71/0x240 net/core/skbuff.c:1037
skb_release_all net/core/skbuff.c:1052 [inline]
__kfree_skb net/core/skbuff.c:1068 [inline]
kfree_skb_reason+0xd7/0x170 net/core/skbuff.c:1104
kfree_skb include/linux/skbuff.h:1264 [inline]
ipip6_tunnel_xmit net/ipv6/sit.c:1042 [inline]
sit_tunnel_xmit+0xdc1/0x2390 net/ipv6/sit.c:1077
__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
neigh_output include/net/neighbour.h:547 [inline]
ip6_finish_output2+0xe61/0x1550 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:generic_exec_single+0x477/0x4e0 kernel/smp.c:418
Code: 75 11 e8 2c 15 0b 00 48 85 db 75 16 e8 22 15 0b 00 eb 15 e8 1b 15 0b 00 e8 f6 18 1b 09 48 85 db 74 ea e8 0c 15 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 43 c7 44 2c 08
RSP: 0018:ffffc9000b887a00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffff88806a1ada00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000b887ad0 R08: ffffffff92223607 R09: 1ffffffff24446c0
R10: dffffc0000000000 R11: fffffbfff24446c1 R12: 1ffff92001710f44
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92001710f65
smp_call_function_single+0x36d/0x5a0 kernel/smp.c:647
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:12952 [inline]
__se_sys_perf_event_open+0x180d/0x1d40 kernel/events/core.c:12594
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: 0033:0x7f293b5a8fd9
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:00007f293c50b028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f293b825fa0 RCX: 00007f293b5a8fd9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000002c0
RBP: 00007f293b637fed R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f293b826038 R14: 00007f293b825fa0 R15: 00007ffec404e7e8