Re: [Texmacs-dev] graphviz plugin broken?

[Joris van der Hoeven]

Happy new year to everybody!

> I built TeXmacs-1.0.2.5 on FreeBSD 5.2-i386-RC2, with graphviz-1.10 and
> found similar behavior, a crash during a graphviz session. TeXmacs has
> no trouble displaying other postscript images (for example, the gnu head
> on the welcome page is rendered correctly). On OS X, TeXmacs was also
> able to render other postscript images.

And if you try to load the postscript generated by Graphviz as an image?
This probably crashes in the same way. If so, then this really seems to
be a bug in Ghostscript. This means that it would be good to contact
the maintainers of Ghostscript about this bug. You can point to
the Ghostscript C++ plugin for TeXmacs if they want to see the way
Ghostscript is called; this plugin is quite clean now.

> The terminal log:
>
> Output written on cmr6.600gf (128 characters, 15248 bytes).
> Transcript written on cmr6.log.
> mktexpk: /var/tmp/texfonts/pk/cx/localfont/cmr6.600pk: successfully
> generated.
> /var/tmp/texfonts/pk/cx/localfont/cmr6.600pk
> Bus error (core dumped)
> Bus error (core dumped)
> Error: /syntaxerror in -file-
> Operand stack:
>     --nostringval--   setupLatin1
> Execution stack:
>     %interp_exit   .runexec2   --nostringval--   --nostringval--
> --nostringval--   2   %stopped_push   --nostringval--   --nostringval--
>    --nostringval--   false   1   %stopped_push   1   3   %oparray_pop
> 1   3   %oparray_pop   1   3   %oparray_pop   1   3   %oparray_pop
> .runexec2   --nostringval--   --nostringval--   --nostringval--   2
> %stopped_push   --nostringval--   --nostringval--
> Dictionary stack:
>     --dict:1059/1123(ro)(G)--   --dict:0/20(G)--   --dict:75/200(L)--
> --dict:0/200(L)--
> Current allocation mode is local
> GNU Ghostscript 7.07: Unrecoverable error, exit code 1

The bus error is induced by Ghostscript or by TeXmacs?

> The problem occurs both with Gnu ghostscript-7.07 and AFPL ghostscript
> 8.11.
>
> On FreeBSD, the c compiler is gcc-3.3.3. On OS X 10.3.2, it is gcc-3.3.
>
> I know that FreeBSD 5.x and OS X 10.3.x share much of the same
> architecture,
> but am surprised to see two such similar failures. An issue with gcc
> perhaps?
> I can change the portfiles to build TeXmacs with gcc-3.1 or -2.95.3 if
> necessary.
> What do you think?

If the problem comes from Ghostscript, you would rather have
to contact the maintainers of Ghostscript.