From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: Xen-unstable: Regression (on AMD) host boot stuck on (XEN) testing the IO APIC....................... Date: Mon, 25 Aug 2014 18:54:05 +0100 Message-ID: <53FB783D.5040302@citrix.com> References: <367097038.20140825191202@eikelenboom.it> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1XLyTF-0005dS-Is for xen-devel@lists.xenproject.org; Mon, 25 Aug 2014 17:54:21 +0000 In-Reply-To: <367097038.20140825191202@eikelenboom.it> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Sander Eikelenboom , Jan Beulich Cc: xen-devel List-Id: xen-devel@lists.xenproject.org On 25/08/14 18:12, Sander Eikelenboom wrote: > Hi Jan / Andrew, > > I just tried xen-unstable of today(last commit 7645640d6ff1791733c43f71590c6e2976cfa549) > and it fails to boot on my AMD machine, it gets stuck on: > "(XEN) testing the IO APIC......................." which takes forever. > > The current tree failing is: commit 7645640d6ff1791733c43f71590c6e2976cfa549 > My last working tree when everything booted fine was: xen_changeset: Mon Aug 11 15:13:04 2014 +0200 git:f093fcf-dirty > > Since i use the special options at boot (ivrs_ioapic[6]=00:14.0 ivrs_hpet[0]=00:14.0), > I also tried booting without these, but that gets stuck at the same point. > > Due to time constraints i haven't been able to bisected it further. > > -- > Sander Hmm - Does reverting e13b3203990706db1313ec2aadd9a30b249ee793 fix the issue? That is the only change in that area, but softirqs should be fine even by that point on boot. ~Andrew