From owner-freebsd-questions Tue Apr 17 12:55: 8 2001 Delivered-To: freebsd-questions@freebsd.org Received: from q.closedsrc.org (ip233.gte15.rb1.bel.nwlink.com [209.20.244.233]) by hub.freebsd.org (Postfix) with ESMTP id 1254037B42C for ; Tue, 17 Apr 2001 12:55:02 -0700 (PDT) (envelope-from lplist@closedsrc.org) Received: by q.closedsrc.org (Postfix, from userid 1003) id 5450555407; Tue, 17 Apr 2001 12:49:47 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by q.closedsrc.org (Postfix) with ESMTP id 429CB51610; Tue, 17 Apr 2001 12:49:47 -0700 (PDT) Date: Tue, 17 Apr 2001 12:49:47 -0700 (PDT) From: Linh Pham To: Mike Dorin Cc: , Subject: Re: Lockup problem continues...was memory tools In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On 2001-04-17, Mike Dorin scribbled: # I thought that too. Except that it will for days without a problem # if you don't do anything...except let it sit. When FreeBSD is idle, it sends an HLT instruction to the processor (except if you are using a multi-proc computer) to HALT or temporarily power down portions of the CPU to keep it cool and keeps the power consumption down. That is why the machine can be stable for a long time if you don't do anything taxing on it. Once you do a processor intensive process (like building a kernel or something like XFree86, [X]Emacs, make world, etc., the OS will not send [nearly as many] HLT instructions to the processor, so the processor is grinding away without a chance to cool off. -- Linh Pham [lplist@closedsrc.org] // 404b - Brain not found To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message