Segmentation fault

[jrv at vanzandt.mv.com (James R. Van Zandt)]

Brad Noyes <maitre at ccs.neu.edu> writes:
>
>I'm writing a c++ program that before i changed distributions from
>RH6.0, to Mandrake worked. But now i try to run it i get a
>Segmentation fault when i execute it with no core dump. Is there
>anyway that i can figure out why it is seg faulting with gdb, or
>something?

I expect a shared library on Mandrake is incompatible with the
corresponding one on RH6.0 (even though that isn't supposed to
happen).  Try recompiling.  If that doesn't help, then run it under
gdb.  I also suggest you look at electric-fence or yamd, which use the
virtual memory hardware to help debug memory access bugs.

>And why wouldn't this seg fault yield a core dump? I can usually tell
>what is wrong when there's a core dump.

Maybe the default max core size is smaller on the Mandrake system.
Check the ulimit command (a bash builtin).

		 - Jim Van Zandt
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