Re: [Devel] Re: [Cooker] KDE crashes, was: 2.4.3-3mdk and VIA

[Arnd Bergmann]

On Tue, 3 Apr 2001, Werner LEMBERG wrote:

> 
> > Note that this is not a problem of KDE or XFree86, but an
> > incompatibility between freetype 2.0.2 and the font file
> > n021004l.pfa ('Nimbus Roman No9 L Medium' from URW fonts 
> > and also AbiSuite) which used to work. It is the glyph
> > '???' (\,c) appearantly.
> 
> Thanks for the fix, but what exactly is the problem?  Using ftview,
> everything seems to work fine.  Using t1disasm to look closer at the
> character `/ccedilla' of font n021004l.pfb (version 1.05, dated
> 22-Dec-1999 -- this comes with ghostscript 5.50), I can't find
> anything special.
> 
It may be some other character, but the iterator is (iirc) 231 when 
scanning all characters, so I figured it would be /ccedilla.
The exact symptoms were that all applications using antialiased fonts with
freetype 2.0.2 and XFree86 4.0.3 segfault while scanning the available
fonts. 
The n021004l font seems to be the only occasion where the op_endchar
from the patch is hit. At the time that happens, builder->current
is zero, which it probably is not supposed to be. 
I am not sure about the version of the font, but it has 27848 bytes and 
is the one that also comes with AbiSuite 0.7.13.
My patch probably does not fix the actual bug, but should give you a 
hint about what is really wrong there. I don't really know much about
fonts, but just used gdb to poke around after the upgrade to freetype 2.0.2
broke my system.

Arnd <><