[Pixman] debuging wxruby

[Svend Haugaard Sørensen]

On Sun, 07 Oct 2012 20:51:28 +0200
sandmann at cs.au.dk (Søren Sandmann) wrote:

> Svend Haugaard Sørensen <shs at demosophia.net> writes:
> 
> > On Sun, 07 Oct 2012 05:10:18 +0200
> > sandmann at cs.au.dk (Søren Sandmann) wrote:
> >
> >> Svend Haugaard Sørensen <shs at demosophia.net> writes:
> >> 
> >> > The top of the stack dump look like this.
> >> >
> >> > #0  0xb47a6d9d in _pixman_lookup_composite_function
> >> > (toplevel=0x80be750, op=PIXMAN_OP_SRC, src_format&2144,
> >> > src_flags43063, mask_format=0, mask_flags92,
> >> > dest_format=PIXMAN_a8r8g8b8, dest_flags4032255,
> >> > out_imp=0xbfffb82c, out_func=0xbfffb828)
> >> > at /var/tmp/portage/x11-libs/pixman-0.26.0/work/pixman-0.26.0/pixman/pixman-utils.c:74
> >> 
> >> A crash at this point suggests that something is broken with thread
> >> local storage on your setup. When you compiled pixman, which type
> >> of thread local storage was detected by the configure script?
> >> 
> >> 
> >> Søren
> >
> > The configure script write this to the output.
> > checking for thread local storage (TLS) support... __thread
> >
> > I have posted the complete output on the gentoo forum.
> > http://forums.gentoo.org/viewtopic-p-7157526.html#7157526
> >  
> 
> Most likely the issue is the same as in this bug:
> 
>    https://bugs.freedesktop.org/show_bug.cgi?id=34335
> 
> where some other library is using the TLS model "initial-exec", which
> then conflicts with pixman using the "dynamic" model.

And how do we find, test and fix that??

Is the TLS supported by a certain dynamic library? Because the I
can search for it.
 
PS. I don't use mesa, but the nvidia driver.