Thanks for your reply. I give a more detailed backtrace and config in https://lists.fd.io/g/vpp-dev/message/22731. ( https://lists.fd.io/g/vpp-dev/message/22731, ) My installation method is to clone vpp from github and make build on Ubuntu 22.04(Kernel version is 5.19)，and I use make run for test and make debug for debugging. Yes, I yried to make the server and client are attached to the same vpp instance.I tried the latest version of vpp on github on yesterday, the problem is still exist. I am looking forward to your reply.
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