[plt-scheme] drscheme fails at runtime (linux, plt-scheme-4.2.5)

Mathew,

Actually, mred runs fine (just tried it). So there's some font being used by
code called from drscheme.ss which is causing drscheme to fail?

Regards,
            Imran Rafique


On Thu, May 20, 2010 at 6:39 AM, Matthew Flatt <mflatt at cs.utah.edu> wrote:

> My guess is still that the issue is a lack of support for old-style X11
> fonts in the X server. If that's right, there's still the question of
> why DrScheme is trying to use an old-style font.
>
> When Xft is enabled, it looks like there's still an XLoadFont() call
> via XCreateFontCursor(), which is used to get basic cursors like the
> arrow and I-beam cursor. I don't think that's a likely culprit, but it
> may be worth checking in gdb...
>
>
> I expect that you will see the error when running `mred'. Can you try
> using `gdb' to run `mred' with the `-synchronous' flag to find out what
> X call is leading to the X_OpenFont message?
>
> Using gdb would go something like this:
>
>   % gdb mred
>   (gdb) handle SIGSEGV nostop noprint
>   (gdb) run -synchronous
>
> The second line is needed because page protection and signal handlers
> are used to implement write barriers. If you don't ignore SIGSEGVs,
> then `mred' will appear to crash right away.
>
> The above may not be enough to get gdb to interrupt the program when
> it's about to exit with an X11 error. You may have to set breakpoints
> on exit().
>
> Thanks,
> Matthew
>
>
> At Wed, 19 May 2010 14:57:52 -0700, Imran Rafique wrote:
> > Mathew (thanks for responding, btw),
> >
> > Xft seems to be enabled.
> > ''configure --help' says that xft support is enabled by default, and I
> > didn't disable it manually (I only did --disable-shared)
> >
> > $ pwd
> > /home/imran/opt/plt-scheme/plt-4.2.5/src/build
> >
> > $ grep -iC2 xft config.log
> > configure:10964: result: yes
> > configure:11241: checking for cairo_create in -lcairo
> > configure:11276: g++ -o conftest -O2 -march=x86-64 -pipe    -pthread
> > conftest.cpp -lcairo  -L/usr/lib64 -L/usr/X11R6/lib64  -lGL -lXrender
> -lXft
> > -lXrender -lfontconfig -lfreetype -lX11   -lcairo   -ldl -lm  -ldl -lm
> > -rdynamic >&5
> > configure:11282: $? = 0
> > configure:11300: result: yes
> > --
> > MREDLINKER='$(CXX)'
> > MRLIBINSTALL='install-no-lib'
> > MROPTIONS=' -DOPERATOR_NEW_ARRAY -DUSE_GL -DWX_USE_XRENDER -DWX_USE_XFT
> > -DWX_USE_CAIRO -DWX_USE_LIBPNG -DWX_USE_LIBJPEG'
> > MZBINTARGET='normal-bin'
> > MZINSTALLTARGET='unix-install'
> > --
> > XMKMF=''
> > X_CFLAGS=' -I/usr/include/freetype2   -I/usr/include/cairo
> > -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12
>  '
> > X_EXTRA_LIBS=' -lGL -lXrender -lXft -lXrender -lfontconfig -lfreetype
> -lX11
> >   -lcairo   -lpng -lz -ljpeg'
> > X_LIBS=' -L/usr/lib64 -L/usr/X11R6/lib64'
> > X_PRE_LIBS=' -lSM -lICE'
> >
> >
> > Regards,
> >             Imran Rafique
> >
> >
> > On Wed, May 19, 2010 at 5:20 AM, Matthew Flatt <mflatt at cs.utah.edu>
> wrote:
> >
> > > At Tue, 18 May 2010 15:35:01 -0700, Imran Rafique wrote:
> > > > The error msg is:
> > > > X Error of failed request:  BadValue (integer parameter out of range
> for
> > > > operation)
> > > >   Major opcode of failed request:  45 (X_OpenFont)
> > > >   Value in failed request:  0x5e0040b
> > > >   Serial number of failed request:  14804
> > > >   Current serial number in output stream:  14805
> > > >
> > > > [...]
> > > >
> > > > I'm guessing that there needs to be some post-install font
> configuration
> > > > that needs to be done (mkfontdir?), but I don't see plt-scheme trying
> to
> > > > install its own fonts anywhere (blindness on my part
> notwithstanding!).
> > > Does
> > > > plt-scheme install any of its own fonts for drscheme, or does it
> expect a
> > > > specific font to already be available on the local x server (in which
> > > case,
> > > > which one is it?).
> > >
> > > No, PLT Scheme doesn't install any fonts.
> > >
> > > There are two font modes: old-stle X11 fonts and Fontconfig/Xft fonts.
> > > The mode depends partly on the way that PLT Scheme is compiled (with Xf
> > > support or not) and partly on what's available from the X server at
> > > run-time.
> > >
> > > When you configure, does the configure script say that Xft support is
> > > enabled?
> > >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.racket-lang.org/users/archive/attachments/20100520/32ba0e2d/attachment.html>