Mail Archives: cygwin-developers/2002/07/04/12:10:02

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Date: Thu, 4 Jul 2002 12:10:10 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin-apps AT cygwin DOT com, cygwin-developers AT cygwin DOT com
Subject: Re: Re[2]: vmstat
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On Thu, Jul 04, 2002 at 12:00:32PM -0400, Christopher Faylor wrote:
>On Thu, Jul 04, 2002 at 01:52:59PM +0100, Chris January wrote:
>>> Hello Chris,
>>> Wednesday, July 03, 2002, 12:21:42 AM, you wrote:
>>> CJ> Will this package actually appear on the mirrors in future or are
>>> CJ> issues I am not aware of preventing this from happening?
>>> Have you tried running the procps tools on current stock dll
>>> (1.3.12-1) ? For me most of them seem to just hang - top, procps,
>>> uptime, vmstat, w... havent tried the others.
>>> Maybe this problem corelates with the fact that some of the /proc
>>> files no longer contain information - see below:
>>> Perhaps it has to do something with your last patch. I don't have time
>>> to look at this right now though. I can send strace if you want.
>>> The procps tools I'm using were downloaded from your site following
>>> their anouncement on cygwin-apps.
>>This is caused by the default alignment changing from 4 bytes to 8 bytes, as
>>far as i can tell. Basically the size of structure passed to the NT system
>>calls is not the size of structure the call expects, so it fails and the
>>program (top, uptime, etc.) gets stuck in a loop trying to read data.
>>I did add macros to ntdll.h to make sure the structures were aligned
>>correctly, but then Chris changed the alignment back so I removed them. I
>>shall let Chris comment on this.
>Huh?  What alignments have I changed?  Pointers please.

I suspect that this must have something to do with binutils.  I changed the
alignments at David Billinghurst's suggestion to accommodate java.  If
this is causing problems, however, I'll change them back.


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