Hi,
Durk Talsma wrote:
On Monday 25 September 2006 21:18, Lou Sanchez-Chopitea wrote:
  
Hi,
   I have just started trying to get FG to run on a new system. I have
assembled a box based on a Tyan MB with two Athlon MP 2000+ with 2GB of
ram, running Fedora Core 5. I get segfaults in both the yum installed FG
and a local version built from sources. I tried Valgrind and get scads
of errors. (I have not yet started to classify them, but it appears that
they are in supplier libraries in addition to the FG code.)
   Has anyone tried to address the multitude of Valgrind errors? Is it
known if some number of them are spurious?
   Has anyone encountered problems (or success) on dual processor systems?

Cheers

Lou
    

Hi Lou,

About two weeks ago, I posted a valgrind error log on the list, which you can 
find here: http://durktalsma.xs4all.nl/valgrind.log
  
    Thanks. I'll check for similarities with what I got.
This is a result from a regular AMD Athlon XP single CPU machine (1 Gig RAM).

I'm under the impression that some reports are spurious, at least some of the 
"Conditional jump or move depends on uninitialised value(s) " or "Use of 
uninitialised value of size 8" messages. I checked one or two occurrences of 
these, and the code in question looks okay. 
  
    When I get segfaults (rather than incorrect behavior) I tend to look for memory errors first, and wondered if someone was cleaning this up.
FWIW, I'm currently trying to trace down a pretty bad memory leak (presumably 
related to AI) in my development copy, but I'd be surprise that that is 
something causing problems on your system.

Cheers,
Durk

P.S., have you tried using gdb? Valgrind is a pretty heavy tool, and when it 
comes to tracing down a seg fault, gdb may be dozens of times faster.
  
    Yes, I did. I got a pretty immediate failure when it tries to initialize floating-point exceptions. This was under Eclipse. I might try with something thinner. It got much farther under Valgrind.
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Cheers

Lou
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