Hi neale,
I add this protection, but other errors come out in many different ways, all
are ipv6 fib process errors.
fib_node_index_t
ip6_mfib_table_lookup2 (const ip6_mfib_t *mfib,
const ip6_address_t *src,
const ip6_address_t *grp)
{
ip6_mfib_node_t *i6mn;
ip6_mfib_key_t key;
if(!mfib)
return 0; (or return ~0;)
IP6_MFIB_MK_KEY(grp, src, &key);
i6mn = (ip6_mfib_node_t*) rn_match(key.key,
(struct radix_node_head *)mfib->rhead);
// const cast
ASSERT(NULL != i6mn);
return (i6mn->i6mn_entry);
}
Regards,
Ewan
[email protected]
From: [email protected]
Date: 2017-11-06 09:17
To: Neale Ranns (nranns); vpp-dev
Subject: Re: Re: [vpp-dev] IPV6 Forwarding error
Hi neale,
I've added a protection on it, but should it be invalid somehow?
Regards,
Ewan
[email protected]
From: Neale Ranns (nranns)
Date: 2017-11-04 23:01
To: [email protected]; vpp-dev
Subject: Re: [vpp-dev] IPV6 Forwarding error
Hi Ewan,
I would guess that fib_index0 is invalid.
/neale
From: <[email protected]> on behalf of "[email protected]"
<[email protected]>
Date: Saturday, 4 November 2017 at 11:11
To: vpp-dev <[email protected]>
Subject: [vpp-dev] IPV6 Forwarding error
Hi all,
Here is ipv6 forwarding error, my version is 17.04.
Any idea?
Thread 1 "vpp_main" received signal SIGSEGV, Segmentation fault.
mfib_forward_lookup (is_v4=0, frame=0x7fffb8626f00, node=0x7fffb5cffe80,
vm=0x7ffff79aa2a0 <vlib_global_main>)
at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vnet/mfib/mfib_forward.c:305
305 mfei0 = ip6_mfib_table_lookup2(ip6_mfib_get(fib_index0),
(gdb) bt
#0 mfib_forward_lookup (is_v4=0, frame=0x7fffb8626f00, node=0x7fffb5cffe80,
vm=0x7ffff79aa2a0 <vlib_global_main>)
at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vnet/mfib/mfib_forward.c:305
#1 ip6_mfib_forward_lookup (frame=0x7fffb8626f00, node=0x7fffb5cffe80,
vm=0x7ffff79aa2a0 <vlib_global_main>)
at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vnet/mfib/mfib_forward.c:353
#2 ip6_mfib_forward_lookup_avx2 (vm=0x7ffff79aa2a0 <vlib_global_main>,
node=0x7fffb5cffe80, frame=0x7fffb8626f00)
at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vnet/mfib/mfib_forward.c:369
#3 0x00007ffff7757129 in dispatch_node (vm=0x7ffff79aa2a0 <vlib_global_main>,
node=0x7fffb5cffe80, type=<optimized out>,
dispatch_state=VLIB_NODE_STATE_POLLING, frame=<optimized out>,
last_time_stamp=10161712619298)
at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vlib/main.c:998
#4 0x00007ffff775741d in dispatch_pending_node (vm=vm@entry=0x7ffff79aa2a0
<vlib_global_main>, p=0x7fffb8556de8,
last_time_stamp=<optimized out>) at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vlib/main.c:1144
#5 0x00007ffff7757e7d in vlib_main_or_worker_loop (is_main=1,
vm=0x7ffff79aa2a0 <vlib_global_main>)
at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vlib/main.c:1591
#6 vlib_main_loop (vm=0x7ffff79aa2a0 <vlib_global_main>) at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vlib/main.c:1611
#7 vlib_main (vm=vm@entry=0x7ffff79aa2a0 <vlib_global_main>,
input=input@entry=0x7fffb4cd4fa0)
at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vlib/main.c:1739
#8 0x00007ffff7790f23 in thread0 (arg=140737347494560) at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vlib/unix/main.c:507
#9 0x00007ffff5a3dce0 in clib_calljmp () at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vppinfra/longjmp.S:110
#10 0x00007fffffffd410 in ?? ()
#11 0x00007ffff779193d in vlib_unix_main (argc=<optimized out>, argv=<optimized
out>)
at
/home/wangzy/Desktop/VBRASV100R001/vpp1704/build-data/../src/vlib/unix/main.c:606
Regards,
Ewan
[email protected]
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