Simone,
This should help: vpp-dev@lists.fd.io | VLIB headroom buffer size
modfification<https://lists.fd.io/g/vpp-dev/topic/71267509#15397>
Cheers,
Pablo.
From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of simone nafra via
lists.fd.io
Sent: martes, 6 de septiembre de 2022 9:02
To: vpp-dev@lists.fd.io
Subject: [vpp-dev] VPP crashing if we configure srv6 policy with five sids in
the sidlist
Hi,
As shown in thread number #21611 also I trying to implement an SRv6 network
through VPP 22.06 I encounter the problem that after a certain number of nodes
(SID List >= 6) the Ingress router no longer forwards packets from the
interface and after a while VPP crashes
In my topology the situation is as follows:
SID LIST -> [Transit3 -> Ingress -> Transit2 -> Ingress -> Egress]
It works
SID LIST -> [Transit3 -> Ingress -> Transit2 -> Ingress -> Transit3 -> Egress]
Does not work
[cid:image001.png@01D8C1D9.AFEDF060]
Outgoing packets from the Ingress node to the Transit node become Ethernet II
packets.
This is the error output following the crash.
(gdb) run
Starting program: /usr/bin/vpp -c /etc/vpp/startup.conf
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
vpp[27618]: pci: Skipping PCI device 0000:00:05.0 as host interface ens5 is up
[New Thread 0x7fffb0625700 (LWP 27623)]
[New Thread 0x7fffafe24700 (LWP 27624)]
Thread 1 "vpp_main" received signal SIGSEGV, Segmentation fault.
0x00007fffb415edc0 in virtio_xmit_pkts () from
/usr/lib/x86_64-linux-gnu/vpp_plugins/dpdk_plugin.so
(gdb) c
Continuing.
Thread 1 "vpp_main" received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) c
Continuing.
Couldn't get registers: No such process.
Nothing is indicated within /var/log/vpp/vpp.log
If you can see it in attach also a pcap of the traffic.
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