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Date: Fri, 12 Oct 2001 08:43:29 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Another process creation bug
Message-ID: <20011012084329.A4172@redhat.com>
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On Fri, Oct 12, 2001 at 03:47:10AM -0700, Robert Legros wrote:
>Hi,
>
>I think I found another process creation bug. When a
>process is created, it may happen that it is created
>twice in the process list.
>
>For example, type the following command :
>    ps -W | less
>
>You may sometimes (not always) get such a result :
>      PID    PPID    PGID     WINPID  TTY  UID   
>STIME COMMAND
>     1372       1    1372       1372  con 1001
>12:23:38 /usr/bin/bash
>     1232    1372    1064       1232  con 1001
>12:24:05 /usr/bin/less
>     1064    1372    1064        972  con 1001
>12:24:05 /usr/bin/ps
>     1340       0       0       1340    ?    0
>12:24:05 *** unknown ***
>
>The Windows Task Manager gives the following
>information :
>    - bash.exe is Windows process 1372
>    - less.exe is Windows process 1340
>    - ps.exe has already died

"That's the way it works" (tm)

This is an AFAIK unavoidable race condition.

cgf

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