From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: [PATCH v10 0/10] iommu/vt-d: Fix intel vt-d faults in kdump kernel Date: Tue, 5 May 2015 17:31:58 +0200 Message-ID: <20150505153157.GQ15736@8bytes.org> References: <1428655333-19504-1-git-send-email-zhen-hual@hp.com> <20150415005731.GC19051@localhost.localdomain> <552DFB56.1070600@hp.com> <20150415064803.GF19051@localhost.localdomain> <20150424080147.GC4458@dhcp-16-116.nay.redhat.com> <20150424082528.GA23912@dhcp-128-91.nay.redhat.com> <20150424083530.GD4458@dhcp-16-116.nay.redhat.com> <20150424084957.GC23912@dhcp-128-91.nay.redhat.com> <20150504162318.GH15736@8bytes.org> <20150505061423.GC31063@dhcp-128-4.nay.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20150505061423.GC31063-0VdLhd/A9PlTxLCkMk2GaBcY2uh10dtjAL8bYrjMMd8@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: Dave Young Cc: Baoquan He , tom.vaden-VXdhtT5mjnY@public.gmane.org, rwright-VXdhtT5mjnY@public.gmane.org, linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, lisa.mitchell-VXdhtT5mjnY@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, "Li, ZhenHua" , doug.hatch-VXdhtT5mjnY@public.gmane.org, ishii.hironobu-+CUm20s59erQFUHtdCDX3A@public.gmane.org, bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, billsumnerlinux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, li.zhang6-VXdhtT5mjnY@public.gmane.org, dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org List-Id: iommu@lists.linux-foundation.org On Tue, May 05, 2015 at 02:14:23PM +0800, Dave Young wrote: > The failure is nothing different, but as I said in another reply the > difference is we could use corrupted data to possiblly cause more failure. I still fail to see how things can get more worse than they already are by reusing the old data (we just reuse it, we do not modify anything there). Do you have any specific scenario in mind? Joerg