when i gdb a process on a remote server, the ssh disconnect, how could i recover the ssh session work?

when i gdb a process on a remote server, the ssh disconnect, how could i
recover the ssh session work?

When I gdb a process on a remote server, the ssh disconnect.
How could I recover the old session's work when I ssh the server next time?
I try to kill the gdb process, but it causes the real process over.
thanks.