Yes we need the bvi part for routing.
Following is journalctl -xe when vpp crashes:
May 24 05:51:57 localhost.localdomain sudo[40264]: pam_unix(sudo:session): session opened for user root by root(uid=0)
May 24 05:51:57 localhost.localdomain sudo[40264]: pam_unix(sudo:session): session closed for user root
May 24 05:53:32 localhost.localdomain vnet[40086]: /root/vpp/src/vlib/log.c:153 (vlib_log) assertion `vlib_get_thread_index () == 0' fails
May 24 05:53:32 localhost.localdomain vnet[40086]: received signal SIGABRT, PC 0x7f6db850d207
May 24 05:53:32 localhost.localdomain vnet[40086]: #0 0x00007f6db9ec4fc2 unix_signal_handler + 0x24c
May 24 05:53:32 localhost.localdomain vnet[40086]: #1 0x00007f6db97bb5d0 0x7f6db97bb5d0
May 24 05:53:32 localhost.localdomain vnet[40086]: #2 0x00007f6db850d207 gsignal + 0x37
May 24 05:53:32 localhost.localdomain vnet[40086]: #3 0x00007f6db850e8f8 abort + 0x148
May 24 05:53:32 localhost.localdomain vnet[40086]: #4 0x0000000000407811 vhost_user_unmap_all + 0x0
May 24 05:53:32 localhost.localdomain vnet[40086]: #5 0x00007f6db92b823f debugger + 0x1c
May 24 05:53:32 localhost.localdomain vnet[40086]: #6 0x00007f6db92b867a _clib_error + 0x2d2
May 24 05:53:32 localhost.localdomain vnet[40086]: #7 0x00007f6db9e56287 vlib_log + 0x2ce
May 24 05:53:32 localhost.localdomain vnet[40086]: #8 0x00007f6d73300f5e snat_det_in2out_node_fn + 0x170f
May 24 05:53:32 localhost.localdomain vnet[40086]: #9 0x00007f6db9e67122 dispatch_node + 0x2b8
May 24 05:53:32 localhost.localdomain vnet[40086]: #10 0x00007f6db9e67702 dispatch_pending_node + 0x372
May 24 05:53:32 localhost.localdomain vnet[40086]: #11 0x00007f6db9e69394 vlib_main_or_worker_loop + 0x8fd
May 24 05:53:32 localhost.localdomain vnet[40086]: #12 0x00007f6db9e69bb0 vlib_worker_loop + 0x2c
May 24 05:53:32 localhost.localdomain vnet[40086]: #13 0x00007f6db9e9bc8e vlib_worker_thread_fn + 0x120
May 24 05:53:32 localhost.localdomain vnet[40086]: #14 0x00007f6db92db524 0x7f6db92db524
May 24 05:53:32 localhost.localdomain abrt-hook-ccpp[40282]: Process 40086 (vpp) of user 0 killed by SIGABRT - dumping core
The crash happens when traffic is forwarded through the path. I see the packets are received on loop0 interface but are not forwarded to loop1 interface.
Regards,
Uzzam Javed
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