Process blocked in XReply
Here I encountered a problem
The program was blocked in XReply, below was the gdb stack trace
both them was blocked and the program was trapped into white-screen status
I trace the log of x-protol via xtrace, it shows the program send the getinputfocus request twice because of the Xreply think it was an error
firstly i think it was deadlock, but there is no other thread lock the same address