From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: Re: Requesting for freeze exception for RMRR Date: Fri, 17 Jul 2015 16:32:43 +0100 Message-ID: <20150717153243.GP12455@zion.uk.xensource.com> References: <20150714092915.GC4152@zion.uk.xensource.com> <55A85758.2010702@intel.com> <20150717091726.GG12455@zion.uk.xensource.com> <55A8C9E7.7080702@intel.com> <20150717093041.GI12455@zion.uk.xensource.com> <20150717132102.GL12455@zion.uk.xensource.com> <55A922890200007800092788@mail.emea.novell.com> <20150717140157.GM12455@zion.uk.xensource.com> <55A91B1D.1050406@citrix.com> <55A91EA6.8030406@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <55A91EA6.8030406@intel.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: "Chen, Tiejun" Cc: Kevin , Wei Liu , "ian.campbell@citrix.com" , George Dunlap , Andrew Cooper , "ian.jackson@eu.citrix.com" , Yong Y Wang , "xen-devel@lists.xen.org" , Jan Beulich List-Id: xen-devel@lists.xenproject.org On Fri, Jul 17, 2015 at 11:26:30PM +0800, Chen, Tiejun wrote: > >The PCI allocation code is in a state, but it was in a similarly bad > >state before. I agree with Jan's point of the risk that these new > >changes cause a regression in booting guests, although we can mitigate > >that somewhat by testing. > > > >I feel at this point that we shouldn't block the RMRR bugfix on also > >fixing the PCI allocation algorithm (which was a pre-existing issue). > > > >Therefore, I recommend that v9 gets respun to v10 to address the current > >comments, and accepted. Afterwards, the PCI allocation algorithm gets > >worked on as a bugfix activity, to pro actively cater for the risk of > >regression. > > If you have any good solution to fix the PCI allocation algorithm > completely, things couldn't be better :) > I think Andrew means you (or someone else) improves that algorithm later. No need to provide a perfect solution next week. > Thanks > Tiejun