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Xsun core dumps now and again

  xdm note:
    Running Xsun with xdm has a funny peculiar problem.  The keyboard
    driver will erroneously report an unknown keyboard type within
    7,500 milliseconds (am I off by a factor of ten?)  Normally this
    isn't a problem if you're running via xinit.  xdm, on the other
    hand, can (and does) terminate and re fork-and-exec the server
    fast enough to encounter this.  The poor server, thinks it's got
    an unknown keyboard type, aborts and leaves spurious core files.

  Fixed in the new Multi Screen Xsun replacement
    /R5contrib/R5.Xsun.multi-screen.tar.Z   on   ftp.x.org

-------------------------------------------------------------------------------
Xsun with not Font loading Code -- Font Servers only

  From: simon@lia.di.epfl.ch (Simon Leinen)
  Subject: Re: R5 server without font code?
  Summary: Yes it works, but do you really want to do it?

  gnb@duke.bby.oz.au (Gregory N. Bond) writes:
  >  Is it possible to build an R5 server without any of the font
  >  rendering code, relying instead only on the font server?

  Yes, and it even works (if your font server is really reliable).  A
  patch is included at the end of this message.

  Is this desirable?

  I use this setup on two workstations right now.  Wonder when users
  will start to complain (eventually they will because some X clients
  try to add a directory to the font path and will fail -- xtex is an
  example.  Also, the font server crashes every three weeks or so :-(
  In other words, I cannot really recommend it except when you really
  need to save the space and you really trust your font server.

     How much space would it save (more relevant in an X terminal context)?

     (It seems that simply commenting out the call to
     FontFileRegisterFpeFunctions() from dix/dixfonts.c would do it, but
     I can't recompile just at the moment to check....)

  Inspired by your posting, I tried exactly this.  These are the results
  for a Sun 4 using the builtin compiler with -O4 optimization:

  root@liasun8# size Xsun XsunNoFonts XsunMono XsunMonoNoFonts
  text    data    bss     dec     hex     filename
  1015776 65536   40896   1122208 111fa0  Xsun
  819168  40960   17208   877336  d6318   XsunNoFonts
  819168  65536   37296   922000  e1190   XsunMono
  622560  40960   13600   677120  a5500   XsunMonoNoFonts

  So the size of text+data+bss is reduced by 27% for Xsun and 36% for
  XsunMono.  None of the servers contain the PEX-SI.  The original
  servers contain bitmap, Speedo and Type 1 rendering code. Patch level
  is 10.
  -- 
  Simon Leinen.
  Ecole Polytechnique Federale de Lausanne

  Now if you *really* want to try this, here is the patch.  It will not
  change anything unless you add this to your site.def:

	  #define BuildServerWithoutFontRenderers YES

  In this case, you also want something like:

	  #define DefaultFontPath tcp/fontserver.your.domain:7000

  Where fontserver.your.domain:7000 should be replaced by the
  hostname:port pair of your *RELIABLE* font server.

  *** 1.1	1992/03/19 15:14:04
  --- config/Project.tmpl	1992/03/19 15:15:10
  ***************
  *** 171,176 ****
  --- 171,179 ----
    #ifndef DefaultRGBDatabase
    #define DefaultRGBDatabase $(LIBDIR)/rgb
    #endif
  + #ifndef BuildServerWithoutRenderers
  + #define BuildServerWithoutRenderers	NO
  + #endif
    #ifndef FontCompilerFlags
    #define FontCompilerFlags -t
    #endif
  *** 1.1	1992/03/19 13:43:50
  --- server/dix/Imakefile	1992/03/19 15:03:42
  ***************
  *** 40,45 ****
  --- 40,51 ----
       SITE_DISPLAY_CLASS = -DCOMPILEDDISPLAYCLASS=\"$(DEFAULTDISPLAYCLASS)\"
    #endif
    
  + #if BuildServerWithoutFontRenderers
  +    SITE_FONT_INIT = -DNOFONTRENDERERS
  + #else
  +    SITE_FONT_INIT = 
  + #endif
  + 
    SITE_DEFINES = $(SITE_FONT_PATH) $(SITE_RGB_DB) $(SITE_DISPLAY_CLASS)
    
    
  ***************
  *** 49,54 ****
  --- 55,61 ----
    NormalLintTarget($(SRCS))
    
    SpecialObjectRule(globals.o, $(ICONFIGFILES), $(SITE_DEFINES))
  + SpecialObjectRule(dixfonts.o, $(ICONFIGFILES), $(SITE_FONT_INIT))
    
    #if HasSaberC
    saber_src:
  *** 1.1	1992/03/19 13:52:11
  --- server/dix/dixfonts.c	1992/03/19 15:06:24
  ***************
  *** 1187,1193 ****
  --- 1187,1195 ----
    InitFonts ()
    {
	patternCache = MakeFontPatternCache();
  + #ifndef NOFONTRENDERERS
	FontFileRegisterFpeFunctions();
  + #endif
	fs_register_fpe_functions();
    }
    
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