[MPlayer-users] getting a stack trace when X is hung

[rcooley]

On Sat, 18 Oct 2003 17:53:02 -0700
Aaron Brick <aaron at lithic.org> wrote:

> killall mplayer, which solves the problem. however, when i did so,
> running it through gdb, i couldn't get X back until i had killed gdb
> itself, which meant that i couldn't get a stack trace.
> 
> any suggestions on how to analyze this problem? thanks.

X is very cool...

Login to a VT as the same user that is running X.  Type something like
the following:  "export DISPLAY=:0.0"

Then, from that text terminal, you can launch any GUI app, and it will
show-up in X, but the I/O (gdb) will happen in that VT.