Hi Yuxiang,
Thank you for the report. I am looking into replicating the issue. Please
create a ticket on the public jira – you can track the progress there.
Best regards,
Filip Varga
From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Yuxiang Zhu
Sent: Monday, June 13, 2022 9:43 AM
To: vpp-dev@lists.fd.io
Subject: [vpp-dev] SIGSEGV when enabling nat64 on 22.02+
Hi,
I am looking to set up nat64 for testing. However I got SIGSEGV when issuing
set interface nat64 out <interface>. Is nat64 broken or was I doing something
wrong?
I was running v22.06-rc1 official debian build on a Debian bullseye virtual
machine with a very basic config. I also tried v22.06-rc1 and master and got
the same error.
uname -a
Linux vpp-proto 5.10.0-15-amd64 #1 SMP Debian 5.10.120-1 (2022-06-09) x86_64
GNU/Linux
vppctl show version verbose cmdline:
Version: v22.06-rc1~5-gea4bcec98~b8
Compiled by: root
Compile host: bc9b24a17e05
Compile date: 2022-06-10T21:37:09
Compile location: /w/workspace/vpp-merge-2206-debian11-x86_64
Compiler: Clang/LLVM 11.0.1
Current PID: 10735
Command line arguments:
/usr/bin/vpp
unix
{
nodaemon
log
/var/log/vpp/vpp.log
full-coredump
cli-listen
/run/vpp/cli.sock
gid
vpp
exec
/etc/vpp/bootstrap.vpp
}
api-trace
{
on
}
api-segment
{
gid
vpp
}
socksvr
{
default
}
memory
{
main-heap-size
512M
main-heap-page-size
default-hugepage
}
cpu
{
main-core
1
workers
2
}
dpdk
{
dev
0000:00:13.0
dev
0000:00:14.0
}
default-hugepage
}
cpu
{
main-core
1
workers
2
}
dpdk
{
dev
0000:00:13.0
dev
0000:00:14.0
}
/etc/vpp/bootstrap.vpp
set interface state GigabitEthernet0/13/0 up
set interface ip address GigabitEthernet0/13/0 2001:db8::1/64
set interface state GigabitEthernet0/14/0 up
set interface ip address GigabitEthernet0/14/0
100.100.18.253/24<http://100.100.18.253/24>
Both NICs are virtio nics connected to a linux bridge on the host:
# dpdk-devbind.py -s
Network devices using DPDK-compatible driver
============================================
0000:00:13.0 'Virtio network device 1000' drv=uio_pci_generic
unused=virtio_pci,vfio-pci
0000:00:14.0 'Virtio network device 1000' drv=uio_pci_generic
unused=virtio_pci,vfio-pci
Steps to produce:
# vppctl show int addr
GigabitEthernet0/13/0 (up):
L3 2001:db8::1/64
GigabitEthernet0/14/0 (up):
L3 100.100.18.253/24<http://100.100.18.253/24>
local0 (dn):
# vppctl set interface nat64 in GigabitEthernet0/13/0
# vppctl set interface nat64 out GigabitEthernet0/14/0
After issuing `set interface nat64 out <interface>` command, vpp will crash in
a few minutes with the error message like:
Jun 13 15:08:21 vpp-proto vnet[10728]: received signal SIGSEGV, PC
0x7fe97ba6e0f8, faulting address 0x848
Jun 13 15:08:21 vpp-proto vnet[10728]: #0 0x00007fe99ebb153e 0x7fe99ebb153e
Jun 13 15:08:21 vpp-proto vnet[10728]: #1 0x00007fe99eac8140 0x7fe99eac8140
Jun 13 15:08:21 vpp-proto vnet[10728]: #2 0x00007fe97ba6e0f8 0x7fe97ba6e0f8
Jun 13 15:08:21 vpp-proto vnet[10728]: #3 0x00007fe97ba57157
nat64_out2in_node_fn_hsw + 0x447
Jun 13 15:08:21 vpp-proto vnet[10728]: #4 0x00007fe99eb41451 vlib_worker_loop
+ 0x1b31
Jun 13 15:08:21 vpp-proto vnet[10728]: #5 0x00007fe99eb93f1a
vlib_worker_thread_fn + 0xaa
Jun 13 15:08:21 vpp-proto vnet[10728]: #6 0x00007fe99eb8e291
vlib_worker_thread_bootstrap_fn + 0x51
Jun 13 15:08:21 vpp-proto vnet[10728]: #7 0x00007fe99eabcea7 start_thread +
0xd7
Jun 13 15:08:21 vpp-proto vnet[10728]: #8 0x00007fe99e80fdef clone + 0x3f
Jun 13 15:08:21 vpp-proto systemd[1]: vpp.service: Main process exited,
code=killed, status=6/ABRT
Best Regards,
Yuxiang Zhu
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