From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: [xen-4.1-testing test] 9805: regressions - FAIL Date: Thu, 17 Nov 2011 10:37:01 +0000 Message-ID: References: <4EC4E1DD.1030309@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4EC4E1DD.1030309@canonical.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Stefan Bader Cc: xen-devel@lists.xensource.com, Ian Jackson , Jan Beulich , Stefano Stabellini List-Id: xen-devel@lists.xenproject.org On 17/11/2011 10:28, "Stefan Bader" wrote: >>> Hm, yes we should. I am pretty sure I hit that code path often enough, >>> Wonder >>> why I never saw any dead lock there... >> >> Perhaps your dom0 kernel doesn't register a pirq_eoi_map. >> > Would be the only explanation. And quite possible. Heck, I would need to know > what that is used for anyway. :/ The kernel is 3.0 based the interrupt I was > looking at just was a normal apic emulated through events one... Our automated tests still use 2.6.32. It wouldn't surprise me if upstream Linux 3 doesn't have the pirq_eoi_map stuff; it's an optimisation rather than core absolutely-required functionality. It's the dom0 PV kernel that matters in this case by the way, not the kernel that you are running in HVM mode as a domU. -- Keir