From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH] blkfront: Move blkif_interrupt into a tasklet. Date: Thu, 23 Sep 2010 18:38:03 +0200 Message-ID: <4C9B826B.10302@redhat.com> References: <1282546470-5547-1-git-send-email-daniel.stodden@citrix.com> <1282546470-5547-2-git-send-email-daniel.stodden@citrix.com> <4C802934.2000305@goop.org> <4C9B7B69.7080705@redhat.com> <4C9B7F1A.2040302@goop.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4C9B7F1A.2040302@goop.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jeremy Fitzhardinge Cc: Andrew Jones , Xen , Tom Kopec , Daniel Stodden List-Id: xen-devel@lists.xenproject.org On 09/23/2010 06:23 PM, Jeremy Fitzhardinge wrote: >> Any developments with this? I've got a report of the exact same warnings >> on RHEL6 guest. See >> >> https://bugzilla.redhat.com/show_bug.cgi?id=632802 >> >> RHEL6 doesn't have the 'Move blkif_interrupt into a tasklet' patch, so >> that can be ruled out. Unfortunately I don't have this reproducing on a >> test machine, so it's difficult to debug. The report I have showed that >> in at least one case it occurred on boot up, right after initting the >> block device. I'm trying to get confirmation if that's always the case. >> >> Thanks in advance for any pointers you might have. > > Yes, I see it even after reverting that change as well. However I only > see it on my domain with an XFS filesystem, but I haven't dug any deeper > to see if that's relevant. > > Do you know when this appeared? Is it recent? What changes are in the > rhel6 kernel in question? It's got pretty much everything in stable-2.6.32.x, up to the 16 patch blkfront series you posted last July. There are some RHEL-specific workarounds for PV-on-HVM, but for PV domains everything matches upstream. Paolo