Re: [Sheflug] Segfaults & ld.so wierditude

[Bob Ham <nospam [at] dcs.shef.ac.uk>]

On Tue, 2 May 2000, Alastair Donlon wrote:

> On Tue, May 02, 2000 at 11:38:46AM +0100, Bob Ham wrote:
> > On Fri, 28 Apr 2000, Stephen J. Turnbull wrote:
> > 
> > > >>>>> "Bob" == Bob Ham <u9rah [at] dcs.shef.ac.uk> writes:
> > > 
> > >     Bob> Anyway, that problem solved, and another one reared it ugly
> > >     Bob> head again.  It's a different program, but the code is part
> > >     Bob> of the same project.  The problem is in malloc().
> > > 
> > > Sounds to me like you've got a bogus pointer somewhere that's
> > > overwriting malloc's private data.
> > 
> > It's that malloc() itself segfaults, as in in the backtrace I get
> > strdup(), malloc(), malloc() right at the top.
> > 
> 
> Segfaults during malloc() usually point (ha, what a pun) to a double
> free() somewhere in the code. Free'ing the same pointer twice does
> BadThings(tm) to mallocs internals.

Ah, interesting.  Cheers, I'll check it out.

Bob

--
Bob Ham:  bob [at] timecity.org   http://flux.mentaltempt.org/~node/
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Time City Level Designer
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