Re: [g-a-devel] Strange crashes with pyatspi

[Zack Cerza <zcerza redhat com>]

Zack Cerza wrote:
> Hi Li,
>
> Li Yuan wrote:
> > Hi Zack,
> >
> > Zack Cerza wrote:
> > > Hi all,
> > >
> > > So I've been working on a port[0] of dogtail to pyatspi whenever I've 
> > > been able to for the last few months, and I'm having one major 
> > > problem: Sometimes the entire session just crashes. That's right, the 
> > > whole session. :(
> > >
> > > I've spent a lot of time trying to debug this to no avail. The 
> > > furthest I've gotten is that sometimes at-spi-registryd gets a 
> > > SIGABRT, and exits. The next time dogtail (or even accerciser) starts 
> > > after this, the session goes *BOOM*. Even toggling 
> > > /desktop/gnome/interface/accessibility to 'false', and then to 'true' 
> > > after at-spi-registryd dies will trigger this.
> > >
> > > The most reliable way I've found to reproduce the problem is:
> > >
> > > 1 Run accerciser.
> > > 2 Run sniff (from dogtail).
> > > 3 Here, one of them might hang.
> > > 4 Close both (^C or kill if necessary).
> > > 5 Here, at-spi-registryd dies.
> > >   
> > Do you have a trace for this crash?
> >
> > Thanks,
> > Li
>
> Heh, so I spent some time trying to reproduce the crash, and eventually 
> gave up for a while, leaving gdb attached to at-spi-registryd. I resumed 
> porting dogtail, and after a couple hours I got one :)
>
> Attached. Thanks for taking a look.
>
> Zack

Has anyone found anything useful in this crash, or maybe even seen the 
crash themselves?

Zack

> > > 6 Run sniff or accerciser.
> > > 7 Here, the session goes down, and you get GDM back.
> > >
> > > I don't know much else about what's causing this, but it's definitely 
> > > a blocker for ditching the mess that is pyspi (even though pyspi is 
> > > very broken in F7). Any help I could get would be greatly appreciated.
> > >
> > > Thanks,
> > > Zack
> > >
> > > [0] http://svn.gnome.org/viewcvs/dogtail/branches/pyatspi/