backend_driver errors

Running gdb first:

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x65c4a402
0x65c4a402 in ?? ()
(gdb) bt
#0 0x65c4a402 in ?? ()
#1 0x0265c5e1 in FT_Glyph_Get_CBox (glyph=0x54463a3a, bbox_mode=1634552114, acbox=0x6567) at /Users/pkienzle/Packages/freetype-2.3.5/src/base/ftglyph.c:534
Previous frame inner to this frame (corrupt stack?)

So the problem seems to be in freetype.

The link above says:

Looks like a freetype bug: the following code segfaults when linked
against libfreetype.6.3.10 but not when linked against
libfreetype.6.3.16. Freetype has some code to read dfont files, which
apparently had a bug in the older version, and this is triggered by the
new code that reads in all font files.

I don't understand why it is referring to 6.3.16 when 2.3.5 was released
in July 2007, unless 6.3.16 means May 16, 2006.

  - Paul


On Wed, Sep 05, 2007 at 01:40:02PM +0300, Jouni K. Sepp�nen wrote:

Paul Kienzle <pkienzle@...537...> writes:

> Is there something in the last couple of weeks which might cause this?

Some changes in font handling caused segfaults for me, and it turned out
to be a bug in an old version of freetype:

Try running python under gdb, or using strace/truss/ktrace to see what
is happening right before the segfault.