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Date: Fri, 19 Oct 2012 13:48:48 +0400
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Subject: ps -W -p <winpid> behaviour change
From: Boris Molodenkov <boris DOT molodenkov AT gmail DOT com>
To: cygwin AT cygwin DOT com
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Summary:

Old 'ps -W -p' do show specific Windows process information for WINPID.
New 'ps -W -p' does not show specific Windows process information for WINPID.

Please look log below for details.

Is that new behaviour correct?


Old behaviour:

$ ps --version
ps (cygwin) 1.11
Process Statistics
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
Compiled on Jun 12 2008

$ notepad &
[1] 5780

$ ps -W -p 5780
      PID PPID PGID WINPID TTY UID STIME COMMAND
     5780 4184 5780 4676 con 1006 12:41:44 /cygdrive/c/WINDOWS/system32/
notepad

$ ps -W -p 4676
      PID PPID PGID WINPID TTY UID STIME COMMAND
     4676 0 0 4676 ? 0 12:41:45 c:\WINDOWS\system32\notepad.exe


New behaviour:

$ ps --version
ps (cygwin) 1.7.16
Show process statistics
Copyright (C) 1996 - 2012 Red Hat, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ notepad &
[1] 5092

$ ps -W -p 5092
      PID PPID PGID WINPID TTY UID STIME COMMAND
     5092 3204 5092 4848 pty1 1000 12:36:34 /cygdrive/c/Windows/system32/notepad
     5092 3204 5092 4848 pty1 1000 12:36:34 /cygdrive/c/Windows/system32/notepad

$ ps -W -p 4848
      PID PPID PGID WINPID TTY UID STIME COMMAND


Thanks,
Boris

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