X server crash when using XtrkCad on Linux Mint 17.1

Unfortunately this option does not work.

I created the script, ran it, at the gdb promp entered run. XtrkCad was started, I opened the file, it crashed. When it crashes, I am thrown back at the login screen. So there is no gdb prompt anymore. I logged in with another user account in another terminal and checked the running processes. No gdb...

Ah, of course, silly me - it's Xorg that's crashing, not xtrcad: Switch to a non-X console and attach to Xorg there:

~# gdb -p $(pgrep Xorg)
(gdb) cont
Continuing.

Then switch back to X and trigger the crash. Once it dies, switch back to the console and see if
you have a useful backtrace there. If you don't, you're still missing debug symbols but I don't
know where else you'd find them: Your best bet will be to chase it up with your distro's bug tracking
system.

I tried two sequences:

- ~# gdb --args $XTRKCADLIB/xtrkcad
- (gdb) run
- switch to non-X console
- ~# gdb -p $(pgrep Xorg)
- (gdb) cont

Gdb says Continuing, and then the system freezes. Only way out it via the alt-sysrq-s,u,b route.

- ~# gdb --args $XTRKCADLIB/xtrkcad
- switch to non-X console
- ~# gdb -p $(pgrep Xorg)
- (gdb) cont

Gdb says Continuing, but before I can switch back to the X terminal to enter the run command in gdb, the system freezes again.

Oops, sorry.

With or without the cont command, starting gdb -p $(pgrep Xorg) in a non-X terminal leads to a freeze when I try to switch to the X-terminal.