Xair - DRM fails

[Arjan van de Ven]

On Sun, 2006-02-26 at 14:46 +0100, Ralph Angenendt wrote:
> Arjan van de Ven wrote:
> > you can improve the quality of this bugreport by
> > 1) installing the respective -debuginfo rpms (in this case of Xair and
> > the driver)
> > 2) running the app from inside gdb
> > and then when the crash hits,
> > 3) type "bt"
> > 
> > that gives a similar backtrace, but with a LOT more useful information
> > (such as function names and filenames + line numbers) for the developers
> > to figure this one out...
> 
> I don't seem to be able to do that (following "the book" at
> <http://wiki.x.org/wiki/DebuggingTheXserver>).
> 
> When attaching to a running Xair from a remote machine, I cannot
> reproduce the bug, as it happens at startup. Running "gdb /usr/bin/Xair"
> from a remote machine doesn't seem to trigger the bug.
> 
> Starting Xair in gdb from the local machine inhibits me from getting
> back to gdb. And using a script as described in
> <http://wiki.x.org/wiki/DebuggingTheXserver#head-e988cb1d62739154287e8231cb2cdd9732b65428> gives me some output, but none concerning the error.
> 
> And as the error doesn't make Xair dump core either, I have no core file
> which I can run gdb against.

if Xair is setuid, set
/proc/sys/fs/suid_dumpable
variable to 1
(and make sure the ulimit for core dumping isn't 0)