Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261538AbTKOFS2 (ORCPT ); Sat, 15 Nov 2003 00:18:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261539AbTKOFS2 (ORCPT ); Sat, 15 Nov 2003 00:18:28 -0500 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:17344 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S261538AbTKOFS1 (ORCPT ); Sat, 15 Nov 2003 00:18:27 -0500 Message-ID: <3FB5B70D.3090309@pobox.com> Date: Sat, 15 Nov 2003 00:18:05 -0500 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030703 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Linus Torvalds CC: Jack Steiner , Andrew Morton , Ravikiran G Thirumalai , linux-kernel@vger.kernel.org Subject: Re: hot cache line due to note_interrupt() References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 809 Lines: 25 Linus Torvalds wrote: > The fact is, irqdebug _has_ resulted in a few reports where instead of a > silent and total lock-up, the kernel just said "I'll disable this irq" and > the machine continued limping along. I strongly agree. There are two huge reasons I develop and debug drivers solely in 2.6 now: kksymoops and irqdebug. Both have helped a great deal in tracking down problems. Indeed, screaming irqs that lead to lockups are instantly detected in 2.6. But hey... I'm just a developer. Who can say whether it should be on by default? Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/