From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: 3.0.4 and 3.1-rc4 based dom0 won't boot with acpi=off Date: Sat, 10 Sep 2011 20:28:07 -0400 Message-ID: <20110911002807.GA9989@oracle.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Sven =?iso-8859-1?Q?K=F6hler?= Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Sun, Sep 11, 2011 at 12:43:18AM +0200, Sven K=F6hler wrote: > Hi, >=20 > when using acpi=3Doff in the kernel or xen command line, the system won= 't > boot. On real hardware, I saw a few interrupt related warnings from the > usb drivers. The system then seemed to lock up when trying to do I/O vi= a > AHCI. Same in virtualbox. System won't come up. Not surprised. Without the ACPI we can't find parse the interrupt table, so you don't get any interrupts. This is result of the reboot issue you have been seeing with your box? You might want to try some parameters on the Xen line to alter how it is suppose to reboot. /* * reboot=3Db[ios] | t[riple] | k[bd] | n[o] [, [w]arm | [c]old] * warm Don't set the cold reboot flag * cold Set the cold reboot flag * bios Reboot by jumping through the BIOS (only for X86_32) * triple Force a triple fault (init) * kbd Use the keyboard controller. cold reset (default) * acpi Use the RESET_REG in the FADT */