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Date: Tue, 16 Mar 2004 11:47:03 -0500
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: cygwin problems with Hyperthreaded machines?
Message-ID: <20040316164703.GD21715@redhat.com>
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References: <OFAFD2BF73 DOT 31E51C11-ON85256E59 DOT 00575DC5-85256E59 DOT 00574BE1 AT abinitio DOT com>
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On Tue, Mar 16, 2004 at 10:55:14AM -0500, Chuck McDevitt wrote:
>I've been running into some severe problems with using Cygwin on 
>Hyperthreaded machines.
>
>The problem mostly occurs when capturing the stdout from a program with 
>the backquote operator,
>or using the shell command in makefiles.   The captured values end up as 
>blank sometimes.
>
>For example, in my Makefile, 
>
>       source-dir          := $(strip $(shell pwd))
>
>pwd always returns something, but source-dir sometimes gets set to an 
>empty string.
>
>This never happens on single-CPU non-hyperthreaded machines.
>
>I've also seen occasional hangs during a make, again only on hyperthreaded 
>machines.
>
>I've tried the latest cygwin dll from cygwin.com, as well as the snapshot 
>from 3/12, and I still get this problem.
>
>Anyone else out there seeing this?   Is this a known problem?  Is there 
>some version of the cygwin dll that doesn't have this problem?

It's not a known problem and you are not providing enough details to track
the problem down.

http://cygwin.com/problems.html
--
Christopher Faylor                             spammers: aaaspam AT sourceware DOT org
Cygwin Project Leader
Red Hat, Inc.

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