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Subject: 
Re: LDGLite Linux install question
Newsgroups: 
lugnet.cad.dev
Date: 
Tue, 17 Jun 2003 23:30:22 GMT
Viewed: 
4151 times
  
In lugnet.cad.dev, Orion Pobursky wrote:
> In lugnet.cad.dev, Don Heyse wrote:
> > In lugnet.cad.dev, Orion Pobursky wrote:
> > > I was kinda hopeing that this problem was a problem with my
> > > Linux install and not hardware.  Oh well...
> > > Thanks for the effort.
> > 
> > Wait a minute!  You're not done yet.  I poked through the MESA code
> > (common_x86.c) and realized something.  The SIGFPE is normally caught
> > by the exception handlers in MESA but in gdb the program stops anyhow.
> > You need to tell gdb to continue to get to the real problem, the
> > SIGSEGV, which is might not be a problem with your hardware.
> > 
> >   gdb ldglite
> >   run
> >     (hit the SIGFPE)
> >   cont
> >     (hit the SIGSEGV)
> >   backtrace
> > 
> > Don
> 
> Ok, here's the output:
> 
> (gdb) run
> Starting program: /usr/local/bin/ldglite
> 
> Program received signal SIGFPE, Arithmetic exception.
> 0x0816ce13 in _mesa_test_os_sse_exception_support ()
> (gdb) cont
> Continuing.
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x40264843 in xmesa_register_swrast_functions () from /usr/lib/libGL.so.1
> (gdb) backtrace
> #0  0x40264843 in xmesa_register_swrast_functions () from /usr/lib/libGL.so.1
> #1  0x40262127 in XMesaCreateContext () from /usr/lib/libGL.so.1

Well, that's discouraging.  It's still happening inside the Mesa
startup code.

Here's a link to what looks like a bug report from over year ago
which seems to indicate it might be an out of memory error.  But I
don't see any evidence of a workaround, and they don't seem all that
convinced they really know what the problem is.

  http://www.nevrax.org/pipermail/nel/2002-February/000975.html

Meanwhile I built just built Mesa 5.0.1 and tried it on a much more
primitive PC than yours and it worked.  I'm not sure what to try next.

Don



Message has 1 Reply:
  Re: LDGLite Linux install question
 
(...) Hmmm, how about trying the packages actually "blessed" by your distribution. According to this page: (URL) might be possible to build Opengl programs with these two packages. 14 May 2003 RPM mesaglu-devel 5.0 (i586) 1433 kB Patch-RPM (...) (23 years ago, 18-Jun-03, to lugnet.cad.dev)

Message is in Reply To:
  Re: LDGLite Linux install question
 
(...) Ok, here's the output: (gdb) run Starting program: /usr/local/bin/ldglite Program received signal SIGFPE, Arithmetic exception. 0x0816ce13 in _mesa_test_os_sse_ex...on_support () (gdb) cont Continuing. Program received signal SIGSEGV, (...) (23 years ago, 17-Jun-03, to lugnet.cad.dev)

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