Subject: Re: 1.7.10s 20110729 - problem listing services in /proc
From: "Yaakov (Cygwin/X)" <yselkowitz@users.sourceforge.net>
To: cygwin <cygwin@cygwin.com>
Date: Fri, 29 Jul 2011 17:36:50 -0500
In-Reply-To: <20110729202142.GD13084@calimero.vinschen.de>
References: <4E3302E5.6000602@acm.org>	 <20110729202142.GD13084@calimero.vinschen.de>
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On Fri, 2011-07-29 at 22:21 +0200, Corinna Vinschen wrote:
> On Jul 29 11:58, David Rothenberger wrote:
> > With the 20110729 snapshot (and some earlier ones), the following
> > command terminates early.
> > 
> > % find /proc/registry/HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/services -maxdepth 1 -print
> > 
> > strace lists an exception: "exception C0000005 at 6100296A". This is
> > occurring for me in both Win7 x64 and WinXP x86. It doesn't occur in
> > either environment using 1.7.9.
> 
> I can't reproduce this.  Address 6100296A points to a double free on
> the cygheap, alternativly an overwritten memeory slot on the cygheap.
> Without being able to duplicate the problem it's rather hard to find.
> Can you try earlier snapshots to find out in what timeframe this 
> problem has been introduced?  An strace might be helpful as well.

I did have C0000005 exceptions with the 20110729 snapshot with seemingly
all fork() calls, which I don't have with 1.7.9.  I'm running Win7 SP1
x64 with large-address-aware executables and DLLs rebased above
0x80000000.  I won't be able to diagnose this further until after the
weekend.


Yaakov


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