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Date:	Mon, 27 Sep 2004 06:38:41 -0700 (PDT)
From:	Patrick Samson <p_samson AT yahoo DOT com>
Subject:	Re: References to both cygwin1.dll and msvcrt.dll
To:	cygwin AT cygwin DOT com
In-Reply-To:	<Pine.GSO.4.61.0409270915100.17371@slinky.cs.nyu.edu>
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--- Igor Pechtchanski wrote:
> On Mon, 27 Sep 2004, Patrick Samson wrote:
> 
> > I use a dll which have references to both
> > cygwin and m$:
> > $ cygcheck /usr/share/tcl8.4/dp4.0/win/dp40.dll
> > D:/cygwin/usr/share/tcl8.4/dp4.0/win/dp40.dll
> >   D:\cygwin\bin\tcl84.dll
> >     C:\WINNT\System32\ADVAPI32.DLL
> >       C:\WINNT\System32\ntdll.dll
> >       C:\WINNT\System32\KERNEL32.dll
> >       C:\WINNT\System32\USER32.dll
> >         C:\WINNT\System32\GDI32.dll
> >       C:\WINNT\System32\RPCRT4.dll
> >     D:\cygwin\bin\cygwin1.dll <-------------
> >   C:\WINNT\System32\msvcrt.dll <------------
> >   C:\WINNT\System32\WS2_32.DLL
> >     C:\WINNT\System32\WS2HELP.dll
> >
> > Should I suspect this to be a possible source of
> trouble? Or does it
> > mean nothing?
> 
> Depends.  Usually, this results in some sort of
> trouble, mostly because of
> the separate parallel stdio, malloc, etc
> implementations.  You may be able
> to get away with it for a while if none of the
> msvcrt functions are
> actually called, but it may come back and bite you
> in the future.
> 	Igor

Since my post I found a way to reproduce on
development the problem I have on production.
At some point cygserver hits 100%CPU and Postgres
backends are no more able to serve requests.
Now I must narrow the number of components involved,
to prove that the culprit is really this DLL.
As you suggest, it may be a mess with mem alloc.

Corina, any hint?
May I expect some useful info with log or debug
options to cygserver?



		
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