From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758642AbYDKHat (ORCPT ); Fri, 11 Apr 2008 03:30:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756084AbYDKHal (ORCPT ); Fri, 11 Apr 2008 03:30:41 -0400 Received: from out02.mta.xmission.com ([166.70.13.232]:56571 "EHLO out02.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755600AbYDKHak (ORCPT ); Fri, 11 Apr 2008 03:30:40 -0400 Subject: Re: regression caused by: genirq: do not leave interupts enabled on free_irq From: "Eric W. Biederman" To: Yinghai Lu Cc: Thomas Gleixner , Andrew Morton , Ingo Molnar , Jeff Garzik , Ayaz Abdulla , LKML In-Reply-To: <86802c440804110017y62938d90x7e3e32df25a60d1@mail.gmail.com> References: <86802c440804102313k4546cd73s7bffb30a14239472@mail.gmail.com> <86802c440804110014j44b32d16ubfaa0f327c3a384f@mail.gmail.com> <86802c440804110017y62938d90x7e3e32df25a60d1@mail.gmail.com> Content-Type: text/plain Date: Fri, 11 Apr 2008 00:30:30 -0700 Message-Id: <1207899030.15605.1.camel@x61.ebiederm.org> Mime-Version: 1.0 X-Mailer: Evolution 2.12.1 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 127.0.0.1 X-SA-Exim-Rcpt-To: too long (recipient list exceeded maximum allowed size of 128 bytes) X-SA-Exim-Mail-From: ebiederm@xmission.com X-SA-Exim-Scanned: No (on mgr1.xmission.com); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2008-04-11 at 00:17 -0700, Yinghai Lu wrote: > On Fri, Apr 11, 2008 at 12:14 AM, Yinghai Lu wrote: > > On Fri, Apr 11, 2008 at 12:01 AM, Thomas Gleixner wrote: > > > On Thu, 10 Apr 2008, Yinghai Lu wrote: > > > > last week found: > > > > after latest kernel kexec RHEL 5.1 or other stack kernel, the nvidia > > > > forcedeth doesn't work anymore. > > > > > > > > I stared at forcedeth.c two days. and revert every patches about that > > > > doesn't help. > > > > > > So forcedeth does not come up again, when you kexec from linus.git > > > into an older distro kernel. Or is it the other way round ? > > RHEL 5.1 kexec RHEL 5.1 : works > > RHEL 5.1 kexec linus kernel: works > > linus (after -rc2) kexec linus tree: works: > > linus (after -rc2) kexec RHEL 5.1 : forcedeth will not come up > > linus ( before -rc2 include rc2) kexec RHEL 5.1 works > > > the forcedeth can not get IP address... Sounds like you are not getting any interrupts when you receive a packet. (i.e. The interrupt line is staying disabled). Is MSI an option here? I'm wondering if we disable the MSI and something is not enabling it. Eric