[Beowulf] Seg Fault with pvm_upkstr() and Linux.

Robert G. Brown rgb at phy.duke.edu
Sat Mar 19 05:54:51 PST 2005

On Fri, 18 Mar 2005, Josh Zamor wrote:

> > (So it was probably one or the other of the bugs I pointed out.)
> >
> That was it. I had tried that when experimenting with the factorial 
> program, but I had made another mistake that masked the solution. And 
> then of course I made the always fatal mistake of assuming that it must 
> be somebody else's code, as it worked on one machine and not on the 
> other. Thanks, I really appreciate your assistance.


In the 32 years or so I've been programming, I think I've encountered
problems in programs that really weren't >>my<< fault (as opposed to
bugs in a compiler or even a mature library) fewer than a dozen times.
So the odds were pretty good.  Especially for something like gcc+PVM,
which is a combination widely enough used and old enough that finding a
new, unfixed, egregious bug is really really unlikely.

It always helps to get another pair of eyes on buggy code though, and
the list contains a lot of pairs...;-)


Robert G. Brown	                       http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at phy.duke.edu

More information about the Beowulf mailing list