From owner-freebsd-hackers Tue Nov 3 09:38:03 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA10751 for freebsd-hackers-outgoing; Tue, 3 Nov 1998 09:38:03 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from porkfriedrice.ny.genx.net (porkfriedrice.ny.genx.net [206.64.4.30]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA10702 for ; Tue, 3 Nov 1998 09:38:01 -0800 (PST) (envelope-from bright@hotjobs.com) Received: from localhost (bright@localhost) by porkfriedrice.ny.genx.net (8.9.1/8.9.1) with ESMTP id MAA10344; Tue, 3 Nov 1998 12:40:55 -0500 (EST) (envelope-from bright@hotjobs.com) X-Authentication-Warning: porkfriedrice.ny.genx.net: bright owned process doing -bs Date: Tue, 3 Nov 1998 12:40:55 -0500 (EST) From: Alfred Perlstein X-Sender: bright@porkfriedrice.ny.genx.net To: Marius Bendiksen cc: hackers@FreeBSD.ORG Subject: Re: df hangs on 2.2.6-BETA In-Reply-To: <3.0.5.32.19981103180944.0096b210@mail.scancall.no> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=X-UNKNOWN Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by hub.freebsd.org id JAA10730 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, 3 Nov 1998, Marius Bendiksen wrote: > > I was thinking more along the lines of a generic mechanism for killing > *any* part of the system which has gotten hung up on something. I'm only aware of this becoming a problem in two areas: 1) NFS without intr 2) the stupid ATAPI driver (it doesn't do a real reset and hangs processes) Some places might be changed to allow this, but other places it just can't without major design changes. Sometimes waiting for a resource is a good thing. Generally a lot of provisions are made to make sure kill -9 works in all cases, perhaps with a small delay for entry/exit into the kernel. What process specifically hangs for you? only df? is it the NFS issue? you can also configure NFS to pass back an error on a certain timeout of waiting. however this causes problems when coders don't expect what they think are "local" files to return such errors on access. > .oO[¨ Marius Bendiksen ¨]Oo. > Dead girls don't say no. > I hope that's some sort of literary referance. yuk. Alfred Perlstein - Programmer, HotJobs Inc. - www.hotjobs.com -- There are operating systems, and then there's FreeBSD. -- http://www.freebsd.org/ 3.0-current To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message