Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761746Ab3DDOZE (ORCPT ); Thu, 4 Apr 2013 10:25:04 -0400 Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:51783 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761650Ab3DDOZB (ORCPT ); Thu, 4 Apr 2013 10:25:01 -0400 Message-ID: <1365085489.28127.64.camel@i7.infradead.org> Subject: Re: [PATCH] intel-iommu: Synchronize gcmd value with global command register From: David Woodhouse To: Takao Indoh Cc: kexec@lists.infradead.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org Date: Thu, 04 Apr 2013 15:24:49 +0100 In-Reply-To: <515D1429.40707@jp.fujitsu.com> References: <1363829556-2128-1-git-send-email-indou.takao@jp.fujitsu.com> <20130326144629.GB2727@8bytes.org> <51527D74.9080209@jp.fujitsu.com> <20130327103122.GK30540@8bytes.org> <51591EEE.60401@jp.fujitsu.com> <20130402140546.GA15687@8bytes.org> <515BD638.8070307@jp.fujitsu.com> <1364977479.28127.15.camel@i7.infradead.org> <515D1429.40707@jp.fujitsu.com> Content-Type: multipart/signed; micalg="sha1"; protocol="application/x-pkcs7-signature"; boundary="=-aBo0SsQ/x6G9RWeeOz9a" X-Mailer: Evolution 3.6.3 (3.6.3-2.fc18) Mime-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 9599 Lines: 150 --=-aBo0SsQ/x6G9RWeeOz9a Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2013-04-04 at 14:48 +0900, Takao Indoh wrote: >=20 > - DMAR fault messages floods and second kernel does not boot. Recently I > saw similar report. https://lkml.org/lkml/2013/3/8/120 Right. So the fix for that is to make the subsequent errors silent, until/unless we actually get a request to create a mapping for the given device. > - igb driver detectes error on linkup and kdump via network fails. That's a driver bug, IIRC. It was failing to completely reset the hardware. It's fixed now, isn't it? > - On a certain platform, though kdump itself works, PCIe error like > Unexpected Completion is detected and it gets hardware degraded. 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