[cairo] Evince crash in FT_Get_PS_Font_Info
behdad at behdad.org
Mon Apr 28 09:03:48 PDT 2008
On Mon, 2008-04-28 at 09:08 +0100, Chris Wilson wrote:
> On Sun, 2008-04-27 at 02:07 -0400, Behdad Esfahbod wrote:
> > Hi,
> > I came across this bug:
> > https://bugs.launchpad.net/ubuntu/+source/evince/+bug/157797
> > Looks to me like an evince bug freeing FT_Face before cairo is done with
> > it, but thought I post here so people better at this can check it out.
> Been there, done that, wrote the patch. ;-)
Ah right. I saw that going by. Somehow I thought it was a mozilla
patch. Doesn't make sense now that I think about it ;).
- cairo doesn't use the face behind poppler's back. It looks like
there should be a poppler lifecycle issue involved as well, and your
patch actually hiding the bug. Just a thought. And what about the
actual font file data, is that kept alive anyway?
- Can update the documentation with the fact that the face should be
kept alive as long as the cairo_font_face_t is alive, and add sample
code using user_data for handling it.
"Those who would give up Essential Liberty to purchase a little
Temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin, 1759
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