From owner-freebsd-stable Fri Nov 17 0:57: 1 2000 Delivered-To: freebsd-stable@freebsd.org Received: from elsamss06947.elsevier.nl (elsamss06947.elsevier.nl [145.36.5.12]) by hub.freebsd.org (Postfix) with ESMTP id 940C737B479 for ; Fri, 17 Nov 2000 00:56:58 -0800 (PST) Received: from elsamss06948.elsevier.nl (unverified) by elsamss06947.elsevier.nl (Content Technologies SMTPRS 4.1.5) with ESMTP id ; Fri, 17 Nov 2000 09:58:01 +0100 Received: from olorin.elsevier.nl (olorin.elsevier.nl [145.36.13.14]) by elsamss06948.elsevier.nl (2.6 Build 1 (Berkeley 8.8.6)/8.8.4) with ESMTP id JAA01989; Fri, 17 Nov 2000 09:53:42 +0100 Received: from lap1.sohara.org (pooh.elsevier.nl [145.36.13.27]) by olorin.elsevier.nl (8.8.8/8.8.8) with SMTP id JAA07411; Fri, 17 Nov 2000 09:56:48 +0100 (MET) Date: Fri, 17 Nov 2000 10:15:06 +0000 From: "Steve O'Hara-Smith" To: Doug White Cc: janb@cs.utep.edu, freebsd-stable@FreeBSD.ORG Subject: Re: how can I run utilities at idle time? Message-Id: <20001117101506.1f26b9e5.steveo@eircom.net> In-Reply-To: References: <20001115183715.371bf7a6.steveo@eircom.net> X-Mailer: Sylpheed version 0.4.4 (GTK+ 1.2.8; FreeBSD 4.2-BETA; i386) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 16 Nov 2000 16:10:05 -0800 (PST) Doug White wrote: > On Wed, 15 Nov 2000, Steve O'Hara-Smith wrote: > It is trivially easy to create system-hanging deadlocks with idprio. Use > nice instead. If you need an example, try running setiathome at > idprio. OK that's how to trigger problems. A few obvious questions spring to mind on the subject. Is it easy (possible) to avoid such problems ? Is the mechanism of the problem understood (by anybody) ? Is the whole problem changed beyond recognition with the -current SMP changes ? PS: If these problems can be described to me I am willing to stump up a patch to the relevant man pages. -- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message