Mail Archives: cygwin/2003/08/22/07:29:03
On Fri, Aug 22, 2003 at 06:17:40AM -0400, Russell O'Connor wrote:
> Corinna Vinschen writes:
> > It's a border case. I don't know if it's worth to wait for the fix.
> > It would be nice if I could reproduce it under a debugger :-(
>
> If you are referring to "malloc returns overlapping buffers", I was
> able to get it to fail under the debugger by increasing the malloc
> size in the test case from 8000 to 16000. It then segfaults instead
> of returning overlapping buffers, but that's presumably a bug too, and
> likely a different manifestation of the same bug.
>
> I know that the stack trace for that case in my original post was not
> too useful because there was no debugging information in the cygwin
> dll, but I've since built cygwin from CVS and gotten a proper stack
> trace. Unfortunately, it's at work and I won't be back there till
> Monday. But if it would be useful to you I'll make an extra trip in.
Thanks for the offer but that's probably not necessary. I could
already find a workaround (not a solution, though). It looks like
you're right with your suspicion that mmap using malloc somehow
messes up things but this needs further debugging.
Corinna
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Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Developer mailto:cygwin AT cygwin DOT com
Red Hat, Inc.
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