rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1 GPs behind) idle=035c/1/0x4000000000000000 softirq=144069/144070 fqs=4214
rcu: hardirqs softirqs csw/system
rcu: number: 1609489 0 0
rcu: cputime: 15827 36662 53 ==> 52490(ms)
rcu: (t=10500 jiffies g=182273 q=1050 ncpus=2)
CPU: 1 PID: 1799 Comm: syz.2.9587 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:percpu_counter_add_batch+0x25c/0x2a0 lib/percpu_counter.c:103
Code: 4d 85 ff 75 16 e8 b4 31 2c fd eb 15 e8 ad 31 2c fd e8 98 24 29 06 4d 85 ff 74 ea e8 9e 31 2c 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:ffffc900001f0720 EFLAGS: 00000246
RAX: ffffffff845ab3b2 RBX: 0000000000000000 RCX: ffff888024c39e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001f0820 R08: ffffffff911bc5ff R09: 1ffffffff22378bf
R10: dffffc0000000000 R11: fffffbfff22378c0 R12: dffffc0000000000
R13: 0000000000000001 R14: 1ffff9200003e0ec R15: 0000000000000200
FS: 00007f98909a86c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000002415c000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
dst_alloc+0x12e/0x170 net/core/dst.c:94
ip6_dst_alloc net/ipv6/route.c:344 [inline]
icmp6_dst_alloc+0x7c/0x400 net/ipv6/route.c:3320
ndisc_send_skb+0x422/0x1480 net/ipv6/ndisc.c:493
addrconf_rs_timer+0x36b/0x640 net/ipv6/addrconf.c:4029
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 00 0b 00 48 85 db 75 16 e8 22 00 0b 00 eb 15 e8 1b 00 0b 00 e8 06 f3 07 09 48 85 db 74 ea e8 0c 00 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:ffffc9000bd9fa00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc90010f03000 RSI: 0000000000002cb1 RDI: 0000000000002cb2
RBP: ffffc9000bd9fad0 R08: ffffffff911bc5ff R09: 1ffffffff22378bf
R10: dffffc0000000000 R11: fffffbfff22378c0 R12: 1ffff920017b3f44
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920017b3f65
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:2951
__do_sys_perf_event_open kernel/events/core.c:12949 [inline]
__se_sys_perf_event_open+0x1841/0x1c60 kernel/events/core.c:12601
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: 0033:0x7f988fb9ce59
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:00007f98909a8028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f988fe15fa0 RCX: 00007f988fb9ce59
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007f988fc32e6f R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f988fe16038 R14: 00007f988fe15fa0 R15: 00007ffd2c4d3cd8