rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10500 ticks this GP) idle=6014/1/0x4000000000000000 softirq=13004/13004 fqs=4279
rcu: hardirqs softirqs csw/system
rcu: number: 1390238 0 0
rcu: cputime: 17001 35488 65 ==> 52490(ms)
rcu: (t=10500 jiffies g=11761 q=2637 ncpus=2)
CPU: 0 PID: 5939 Comm: syz.1.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:lock_is_held_type+0x13e/0x190 kernel/locking/lockdep.c:5830
Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c5 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90000006950 EFLAGS: 00000206
RAX: 34f6ac920a5c1f00 RBX: ffff88802d6d5a00 RCX: 34f6ac920a5c1f00
RDX: ffff88802d6d5a00 RSI: ffffffff8acadae0 RDI: ffffffff8b1c85a0
RBP: 0000000000000001 R08: ffffc90000006a6f R09: 0000000000000000
R10: ffffc90000006a60 R11: fffff52000000d4e R12: 0000000000000003
R13: 0000000000000246 R14: ffffffff8d132060 R15: ffff88802d6d6558
FS: 000055558147f500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa0370d1140 CR3: 0000000061a44000 CR4: 00000000003506f0
Call Trace:
fib6_node_lookup_1+0x15b/0x8a0 net/ipv6/ip6_fib.c:1595
fib6_node_lookup+0xe5/0x1c0 net/ipv6/ip6_fib.c:1664
fib6_table_lookup+0xbd/0xa80 net/ipv6/route.c:2227
ip6_pol_route+0x239/0x1210 net/ipv6/route.c:2267
pol_lookup_func include/net/ip6_fib.h:622 [inline]
fib6_rule_lookup+0x20c/0x570 net/ipv6/fib6_rules.c:116
ip6_route_output_flags_noref net/ipv6/route.c:2675 [inline]
ip6_route_output_flags+0x364/0x5d0 net/ipv6/route.c:2687
ip6_route_output include/net/ip6_route.h:94 [inline]
ip6_dst_lookup_tail+0x1ae/0x1530 net/ipv6/ip6_output.c:1126
ip6_dst_lookup_flow+0x48/0xe0 net/ipv6/ip6_output.c:1257
geneve_get_v6_dst+0x824/0xbd0 drivers/net/geneve.c:896
geneve6_xmit_skb drivers/net/geneve.c:1033 [inline]
geneve_xmit+0x923/0x3540 drivers/net/geneve.c:1117
__netdev_start_xmit include/linux/netdevice.h:4943 [inline]
netdev_start_xmit include/linux/netdevice.h:4957 [inline]
xmit_one net/core/dev.c:3632 [inline]
dev_hard_start_xmit+0x246/0x740 net/core/dev.c:3648
__dev_queue_xmit+0x19a3/0x3660 net/core/dev.c:4442
dev_queue_xmit include/linux/netdevice.h:3113 [inline]
neigh_hh_output include/net/neighbour.h:527 [inline]
neigh_output include/net/neighbour.h:541 [inline]
ip6_finish_output2+0xe06/0x1630 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+0xc26/0x14f0 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x2d5/0x630 net/ipv6/addrconf.c:4024
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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:generic_exec_single+0x481/0x4f0 kernel/smp.c:418
Code: 75 11 e8 72 03 0b 00 48 85 db 75 16 e8 68 03 0b 00 eb 15 e8 61 03 0b 00 e8 3c fb 08 09 48 85 db 74 ea e8 52 03 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:ffffc90003497a00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffff88802d6d5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003497ad0 R08: ffffffff911c160f R09: 1ffffffff22382c1
R10: dffffc0000000000 R11: fffffbfff22382c2 R12: 1ffff92000692f44
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000692f65
smp_call_function_single+0x36d/0x5a0 kernel/smp.c:647
task_function_call kernel/events/core.c:120 [inline]
perf_install_in_context+0x5be/0x920 kernel/events/core.c:2948
__do_sys_perf_event_open kernel/events/core.c:12915 [inline]
__se_sys_perf_event_open+0x1836/0x1c50 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: 0033:0x7f5e5fd9c799
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:00007fff24037ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f5e60015fa0 RCX: 00007f5e5fd9c799
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140
RBP: 00007f5e5fe32c99 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5e60015fac R14: 00007f5e60015fa0 R15: 00007f5e60015fa0