Re: cairo release 1.12.4 now available

On Fri, 05 Oct 2012 19:42:26 +0200, [email protected] (=?utf-8?Q?S=C3=B8ren?= Sandmann) wrote:
> Chris Wilson <[email protected]> writes:
> 
> > A new cairo release 1.12.4 is now available from:
> >
> > 	http://cairographics.org/releases/cairo-1.12.4.tar.xz
> >
> >     which can be verified with:
> >
> > 	http://cairographics.org/releases/cairo-1.12.4.tar.xz.sha1
> > 	f4158981ed01e73c94fb8072074b17feee61a68b  cairo-1.12.4.tar.xz
> >
> > 	http://cairographics.org/releases/cairo-1.12.4.tar.xz.sha1.asc
> > 	(signed by Chris Wilson)
> 
> This release crashes on all X servers prior to this commit:
> 
>     commit 2d2dce558d24eeea0eb011ec9ebaa6c5c2273c39
>     Author: Sam Spilsbury <[email protected]>
>     Date:   Wed Sep 14 09:58:34 2011 +0800
> 
>         Remove the SendEvent bit (0x80) before doing range checks on event type.
>     
>         Some extension libraries may set this bit before converting the event to
>         wire protocol and as such range checking the event will cause an invalid
>         BadValue error to result. As the documentation suggests the the bit
>         should be "forced on", remove it before doing range checks and continue
>         to force it on in the server.
>     
>         Reviewed-by: Jamey Sharp <[email protected]>
>         Signed-off-by: Peter Hutterer <[email protected]>
> 
> due to the XSendEvent() in _cairo_xlib_shm_surface_mark_active().

Hmm, that looks like a nasty unavoidable bug in xorg-1.11 and earlier.
As XSendEvent is only used with ShmPixmaps we should be able to disable
that path easily enough.

Thanks,
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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