From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= Subject: Re: Freeze with 2.6.32.19 and xen-4.0.1rc5, acpi problems Date: Tue, 24 Aug 2010 11:16:07 +0300 Message-ID: <20100824081607.GL2804@reaktio.net> References: <4C6FD90D.9080907@rocnet.de> <20100821140234.GX2804@reaktio.net> <4C704E75.2050200@rocnet.de> <4C722AC2.6080701@rocnet.de> <20100823110928.GE2804@reaktio.net> <20100823122918.GG2804@reaktio.net> <4C7379BB.3020007@rocnet.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4C7379BB.3020007@rocnet.de> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Claus Rosenberger Cc: Jeremy Fitzhardinge , xen-devel@lists.xensource.com, Keir Fraser List-Id: xen-devel@lists.xenproject.org On Tue, Aug 24, 2010 at 09:50:19AM +0200, Claus Rosenberger wrote: > >>> 2.6.31.9 but thats not a pvops kernel. > >>> > >> > >> Does someone have ideas why the system would silently lockup (freeze) > >> without those "acpi=ht noapic noirqbalance" options? > >> > >> Afaik this is an Intel DQ45CB motherboard, which has been used by many people/developers. > >> > > > > Oh, one more thing.. > > > > Claus: Please try those options separately, > > to figure out which one of those is the important one. > > > > -- Pasi > > > > > I checked out these options, following result > > - acpi=ht noapic => worked > - noapic => didn't work, disk errors while booting, no functional system > - acpi=ht apic=debug => worked > > So it seems i definitly need the option acpi=ht or acpi=off or something like that. > Keir, Jeremy: Any idea why acpi=ht is needed to make Intel DQ45CB (Q45 chipset) work? Without "acpi=ht" the system freezes randomly without any log/debug/serialconsole output.. -- Pasi