cygwin1.dll problem with Hyperthreaded machines (reprise)

[Volker Bandke]

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Larry,

this may be a language thing - English is not my native language) -
but the script I provided does show the stated behaviour -it provides
enough load in and of itself.   As I said, it sometimes fails after
50 or so iterations, sometimes after 15000, but it does fail - and
the machine is running no additional load  (of course, there is the
usual plethora of programs, like Firewall, Virus scanner, etc)  The
script is not run in a Cygwin box, but from windows using  bash
httest.bash

#!/bin/bash
declare -ix ITER;
while :; do
  `let ITER=0`
  mypwd=`pwd`
  if test -z "$mypwd"; then
     echo "Test failed, mypwd is empty"
     exit 1
  else
     ITER=ITER+1
     echo "Next iteration is $ITER"
  fi
done

      
      
      
      
                                                            
 --                                                         
     With kind Regards            |\      _,,,---,,_        
                            ZZZzz /,`.-'`'    -.  ;-;;,     
     Volker Bandke               |,4-  ) )-,_. ,\ (  `'-'   
      (BSP GmbH)                '---''(_/--'  `-'\_)        
                                                            
      Een schip op het strand is een baken in zee. [A ship on the
beach is a lighthouse to the sea.] - Dutch Proverb
      
        (Another Wisdom from my fortune cookie jar)         


- -----Original Message-----
From: cygwin-owner@cygwin.com [mailto:cygwin-owner@cygwin.com]On
Behalf
Of Larry Hall
Sent: Friday, July 30, 2004 7:01 PM
To: Volker Bandke; cygwin@cygwin.com
Subject: [cygwin] Re: cygwin1.dll problem with Hyperthreaded machines
(reprise)


At 12:17 PM 7/30/2004, you wrote:
> 
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>
>>FWIW, I have a multi-cpu machine and have, in the past, run the
>>supposedly failing tests for days without problem.
>
>On my single-CPU, Hyperthreading machine the error occurs within 30
>minutes, latest, even if no other activity is going on...
>


Can you provide a test case that reproduces the problem for you?  I'm
assuming the script you sent in your previous message doesn't
reproduce 
under no-load since you state as much.  If you can provide such an
example
or can describe something I can try that will surely show the problem
for
you, I'll try it on my HT machine over the weekend.


- --
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
838 Washington Street                   (508) 893-9889 - FAX
Holliston, MA 01746                     


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