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Re: How to create a backtrace when gdb hangs X?



On Sun, 2007-04-01 at 09:06 -0400, Matthias Clasen wrote:
> On Sun, 2007-04-01 at 14:37 +0200, dragoran wrote:
> > The last gaim update crashes for me when I change my status to away 
> > without entering a message or when I change it to invisible.
> > I filled a bug here: 
> > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=234399
> > Its not possible to debug this because when it crashes inside gdb X hangs.
> > When I kill the gdb process (from a vt) X is back to normal... but still 
> > no backtrace...
> > I tryed to get a backtrace from a core file ... but useless see the 
> > bugreport.
> > Any ideas what I can do to debug this?
> > 
> 
> You can either run the hanging app in a nested X instance (Xnest or
> Xephyr), or turn on AllowDeactivateGrabs in your xorg.conf

Alternatively, ssh in from another machine and run the gdb process from
the ssh session.

- ajax


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