From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: RE: [PATCH] x86: change IO-APIC ack method default forsingle IO-APIC systems Date: Wed, 21 Jan 2009 14:33:59 +0000 Message-ID: <49774067.76E4.0078.0@novell.com> References: <49773D8A.76E4.0078.0@novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Yunhong Jiang Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org >>> "Jiang, Yunhong" 21.01.09 15:23 >>> >> Ever since 3.0.2 we've been carrying this patch in our products. Since >> there was no indication that there would be anything wrong with the >> 'new' IO-APIC ack method added back then, we finally decided to drop >> this patch recently from SLE11, to find that the subsequent release >> candidate failed to work on at least on system without using > >This is a bit strange, a bit curios that do you know the reason that it = not working?=20 I too find it strange (otherwise I wouldn't have decided to drop that = patch), but given that it always worked before, we have a solution at hand, and I don't have an affected machine available for debugging, I wanted to save myself and the reporter trying to figure out what's going on there from remote. Jan