From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: interests in bugs for 2.6.16? Date: Sun, 16 Nov 2008 14:40:29 +0200 Message-ID: <492014BD.7030000@redhat.com> References: <491C026F.8070101@itwm.fraunhofer.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Martin Vogt Return-path: Received: from mx2.redhat.com ([66.187.237.31]:34554 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751706AbYKPMkk (ORCPT ); Sun, 16 Nov 2008 07:40:40 -0500 In-Reply-To: <491C026F.8070101@itwm.fraunhofer.de> Sender: kvm-owner@vger.kernel.org List-ID: Martin Vogt wrote: > Hello, > > I'm running kvm-79 on SLES 10, which has a 2.6.16. > I see simple hangs (nothing happens anymore) in my kvm-virtual machine. > > I never have these hangs on 2.6.27. > The hangs seem to be related to qcow2 images on local and on NFS disks. > When I uses iscsi as disk the hangs do not occur. > (At least I can't remember any) > > Is there some interest in those "bugs" for these old kernel 2.6.16? > Then I can try to find out more. > > We definitely want to improve support on older kernels. > But I would need some link/HOWTO to start debugging kvm. > This is difficult, unfortunately, and varies from bug to bug. In this case I'd try running 2.6.17 and up, see which is the first kernel that works. This is a time consuming procedure, but once we know which kernel works and which doesn't, we can look at the differences in APIs and see whether something interesting is missing in the older kernel. -- error compiling committee.c: too many arguments to function