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Mail Archives: cygwin-developers/2002/06/30/07:33:25

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X-WM-Posted-At: avacado.atomice.net; Sun, 30 Jun 02 12:36:32 +0100
Message-ID: <003301c2202a$61f9c7b0$0100a8c0@advent02>
From: "Chris January" <chris AT atomice DOT net>
To: <cygwin-developers AT cygwin DOT com>
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Subject: Re: Slowdown
Date: Sun, 30 Jun 2002 12:36:31 +0100
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> >>If this still happens to you after today's checkin, then I'd really
> >>appreciate if you could track the problem down.
> >
> >I'm doing so now.  I have already provided a full stack backtrace, but
> >I will attempt to track the error done myself.
>
> I saw the full stack backtrace.  It made no sense to me or I would have
> investigated further.  If I was reading it correctly, cygwin was trying
> to free some memory during initialization that should have been NULL.
> AFAICT, it was trying to allocate the fd table during startup.  The fd
> table should have been NULL at that point.
It seems to be heap corruption as far as I can tell. The problem moved
around when I inserted some printf's to see what where it was failing. So
far I've seen it fail in cfree, _close, and fork_child.
My CYGWIN environment variable is set to ntsec check_case:adjust ntea
glob:noignorecase tty binmode.
I will try to investigate further, but it might be better if someone more
familiar with the recent changes has a look.

Chris


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