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Date:	Thu, 25 Jun 2009 11:01:41 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: cygcheck triggers Wow6432Node infinite loop on Windows Server 2008
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On Jun 24 15:30, Christopher Faylor wrote:
> On Wed, Jun 24, 2009 at 02:00:52PM -0400, GJ Hagenaars wrote:
> >Hi there,
> >
> >On a Windows Server 2008, running cronbug from the (bash) command line 
> >results in an ever increasing cronbug.txt file because cygcheck walks 
> >the registry and gets into an infinite loop.
> >
> >It will repeatedly find these entries, deeper and deeper in the registry:
> >Cygnus Solutions
> >Cygnus Solutions\Cygwin
> >Cygnus Solutions\Cygwin\mounts v2
> >Cygnus Solutions\Cygwin\mounts v2\/
> >Cygnus Solutions\Cygwin\mounts v2\/usr/bin
> >Cygnus Solutions\Cygwin\mounts v2\/usr/lib
> >Cygnus Solutions\Cygwin\Program Options
> >
> >HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Cygnus Solutions
> >HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Wow6432Node\Cygnus Solutions
> >HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Wow6432Node\Wow6432Node\Cygnus 
> >Solutions
> >HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Wow6432Node\Wow6432Node\Wow6432Node\Cygnus 
> >Solutions
> >
> >
> >Wow6432Node is Windows-on-windows, and allows registry entries for 32 
> >bit applications to be stored along side registry entries for 64 bit 
> >applications of the same name (allowing for different entries for 64 bit 
> >and 32 bit apps).  The infinite loop behaviour is known and "fixed" by 
> >Microsoft by making the registry key HKLM\Software\Wow6432Node hidden 
> >from RegEnumKeyEx in the 32 bit hive.
> >
> >http://msdn.microsoft.com/en-us/library/ms724072(VS.85).aspx 
> ><http://msdn.microsoft.com/en-us/library/ms724072%28VS.85%29.aspx>
> >
> >Many registry cleaners are (still) struggling with this, as are registry 
> >backup utilities, and also, it appears, cygcheck.
> 
> Which version of cygcheck is this?  Does it come from 1.7 or 1.5?

I fixed that for the 1.7 cygcheck in January.


Corinna

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Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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