X-Spam-Check-By: sourceware.org Message-ID: <45586C29.4050805@byu.net> Date: Mon, 13 Nov 2006 05:59:21 -0700 From: Eric Blake User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.8) Gecko/20061025 Thunderbird/1.5.0.8 Mnenhy/0.7.4.666 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: Bash process remains after I close rxvt in certain ways References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Eric Lilja on 11/12/2006 12:52 PM: > I recently upgraded to a dual core machine which made me use the windows > task manager alot. That's when I noticed that if I close the rxvt window > by pressing 'x' in the top right corner (or doing alt-f4, I never do > this, just tried it now to see what happened) the rxvt process is > terminated and the window disappears but the "underlying" bash process > is still running (without a visible window), consuming ~3.5 MB of memory > and 0 cpu time according to the task manager. So far, no one has found a good way for a cygwin process killed by Alt-F4 (or the X button) to treat that as a SIGHUP and pass that information on to all of its children processes. So, by killing rxvt abruptly, you are indeed stranding bash as a zombie process. > If I exit rxvt by typing > exit, the bash process is terminated too. Actually, typing exit will exit bash, not rxvt; but when rxvt realizes that all of its children processes have exited, it exits as well. > Can I do something so the bash > process is always terminated properly no matter how I close the rxvt > window? Submit a patch to make cygwin processes recognize Alt-F4 as a SIGHUP that needs to be passed to their children? Or possibly even a patch such that when a controlling pty terminal is closed, all children (such as bash) reading from that pty get an end-of-input (possibly a SIGPIPE) when trying to read from the disappearing terminal? > Is there misconfiguration on my end or should I simply get in > the habit of always using exit to close rxvt? For now, that is the best course of action. - -- Life is short - so eat dessert first! Eric Blake ebb9 AT byu DOT net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFWGwp84KuGfSFAYARAhoLAJ4mOFhGOWHcWVFqT1TUminyFF2/3wCgkWST Ibeyo2qq9zIyLaopU7CY3rM= =5ncP -----END PGP SIGNATURE----- -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/