From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754836AbaDNSI2 (ORCPT ); Mon, 14 Apr 2014 14:08:28 -0400 Received: from g6t1526.atlanta.hp.com ([15.193.200.69]:6717 "EHLO g6t1526.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750823AbaDNSI0 (ORCPT ); Mon, 14 Apr 2014 14:08:26 -0400 Message-ID: <1397498902.31076.15.camel@buesod1.americas.hpqcorp.net> Subject: Re: hpsa driver bug crack kernel down! From: Davidlohr Bueso To: Jiang Liu Cc: "Woodhouse, David" , "joro@8bytes.org" , "linux-kernel@vger.kernel.org" , "bhe@redhat.com" , "linux-scsi@vger.kernel.org" , "iommu@lists.linux-foundation.org" , "James.Bottomley@hansenpartnership.com" , "bhelgaas@google.com" , "linux-pci@vger.kernel.org" , "scameron@beardog.cce.hp.com" , Linda Knippers , aswin@hp.com Date: Mon, 14 Apr 2014 11:08:22 -0700 In-Reply-To: <534BA30B.5040102@linux.intel.com> References: <20140409023935.GE11839@dhcp-16-105.nay.redhat.com> <1397083799.2608.20.camel@buesod1.americas.hpqcorp.net> <1397084904.9519.62.camel@dabdike> <1397085044.9519.63.camel@dabdike> <1397086817.2608.25.camel@buesod1.americas.hpqcorp.net> <1397087425.9519.67.camel@dabdike> <1397089180.2608.27.camel@buesod1.americas.hpqcorp.net> <1397111557.2608.29.camel@buesod1.americas.hpqcorp.net> <20140410071535.GX13491@8bytes.org> <1397119587.19944.14.camel@shinybook.infradead.org> <1397146781.2608.46.camel@buesod1.americas.hpqcorp.net> <534BA30B.5040102@linux.intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.6.4 (3.6.4-3.fc18) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2014-04-14 at 16:57 +0800, Jiang Liu wrote: > Hi all, > I guess I found the root cause. It's a bug in matching > device scope, variable 'level' should be decreased when walking up PCI > topology. > Could you please help to test following patch? > Thanks! > Gerry Worked like a charm -- I no longer see all those DMAR messages and the hpsa hard lockup is gone, thanks. Feel free to add my: Reported-and-tested-by: Davidlohr Bueso From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from g2t1383g.austin.hp.com ([15.217.136.92]:41496 "EHLO g2t1383g.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750823AbaDNSIh (ORCPT ); Mon, 14 Apr 2014 14:08:37 -0400 Message-ID: <1397498902.31076.15.camel@buesod1.americas.hpqcorp.net> Subject: Re: hpsa driver bug crack kernel down! From: Davidlohr Bueso To: Jiang Liu Cc: "Woodhouse, David" , "joro@8bytes.org" , "linux-kernel@vger.kernel.org" , "bhe@redhat.com" , "linux-scsi@vger.kernel.org" , "iommu@lists.linux-foundation.org" , "James.Bottomley@hansenpartnership.com" , "bhelgaas@google.com" , "linux-pci@vger.kernel.org" , "scameron@beardog.cce.hp.com" , Linda Knippers , aswin@hp.com Date: Mon, 14 Apr 2014 11:08:22 -0700 In-Reply-To: <534BA30B.5040102@linux.intel.com> References: <20140409023935.GE11839@dhcp-16-105.nay.redhat.com> <1397083799.2608.20.camel@buesod1.americas.hpqcorp.net> <1397084904.9519.62.camel@dabdike> <1397085044.9519.63.camel@dabdike> <1397086817.2608.25.camel@buesod1.americas.hpqcorp.net> <1397087425.9519.67.camel@dabdike> <1397089180.2608.27.camel@buesod1.americas.hpqcorp.net> <1397111557.2608.29.camel@buesod1.americas.hpqcorp.net> <20140410071535.GX13491@8bytes.org> <1397119587.19944.14.camel@shinybook.infradead.org> <1397146781.2608.46.camel@buesod1.americas.hpqcorp.net> <534BA30B.5040102@linux.intel.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org List-ID: On Mon, 2014-04-14 at 16:57 +0800, Jiang Liu wrote: > Hi all, > I guess I found the root cause. It's a bug in matching > device scope, variable 'level' should be decreased when walking up PCI > topology. > Could you please help to test following patch? > Thanks! > Gerry Worked like a charm -- I no longer see all those DMAR messages and the hpsa hard lockup is gone, thanks. Feel free to add my: Reported-and-tested-by: Davidlohr Bueso From mboxrd@z Thu Jan 1 00:00:00 1970 From: Davidlohr Bueso Subject: Re: hpsa driver bug crack kernel down! Date: Mon, 14 Apr 2014 11:08:22 -0700 Message-ID: <1397498902.31076.15.camel@buesod1.americas.hpqcorp.net> References: <20140409023935.GE11839@dhcp-16-105.nay.redhat.com> <1397083799.2608.20.camel@buesod1.americas.hpqcorp.net> <1397084904.9519.62.camel@dabdike> <1397085044.9519.63.camel@dabdike> <1397086817.2608.25.camel@buesod1.americas.hpqcorp.net> <1397087425.9519.67.camel@dabdike> <1397089180.2608.27.camel@buesod1.americas.hpqcorp.net> <1397111557.2608.29.camel@buesod1.americas.hpqcorp.net> <20140410071535.GX13491@8bytes.org> <1397119587.19944.14.camel@shinybook.infradead.org> <1397146781.2608.46.camel@buesod1.americas.hpqcorp.net> <534BA30B.5040102@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <534BA30B.5040102-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Jiang Liu Cc: "Woodhouse, David" , "linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , aswin-VXdhtT5mjnY@public.gmane.org, "James.Bottomley-JuX6DAaQMKPCXq6kfMZ53/egYHeGw8Jk@public.gmane.org" , "iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org" , "bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org" , "scameron-3C9H9nn4BS4HL6m8NFMY+dBPR1lH4CV8@public.gmane.org" , "bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org" List-Id: linux-scsi@vger.kernel.org On Mon, 2014-04-14 at 16:57 +0800, Jiang Liu wrote: > Hi all, > I guess I found the root cause. It's a bug in matching > device scope, variable 'level' should be decreased when walking up PCI > topology. > Could you please help to test following patch? > Thanks! > Gerry Worked like a charm -- I no longer see all those DMAR messages and the hpsa hard lockup is gone, thanks. Feel free to add my: Reported-and-tested-by: Davidlohr Bueso