From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Issue with pv_ops Kernel 2.6.31.6 and Xen Date: Thu, 28 Jan 2010 14:46:03 -0500 Message-ID: <20100128194603.GB14581@phenom.dumpdata.com> References: <4B5A28CC.1090404@swissonline.ch> <4B6127DA.1040408@swissonline.ch> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4B6127DA.1040408@swissonline.ch> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Marcial Rion Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org > > The issue I have: > > While Xen pv_ops Kernel 2.6.31.6 perfectly runs on bare metal, it fails > > to get network connectivity when run on top of Xen 3.4.1 (Gentoo default > > installation). Though the system seems to come up correctly at a first > > sight and network interface is available (I can ping it locally), access > > to network fails (I cannot ping other system in the network nor vice-versa). That makes sense. The IRQ for the network device is not assigned to the driver, so it fails to work. > > > > What I discovered so far: > > Consulting the boot messages within "dmesg", I discovered that ACPI SCI > > fails to load when run on top of Xen, while this error is not happening > > on bare metal. > > > > With XEN: > > ********* > > bio: create slab at 0 > > ACPI: SCI (IRQ20) allocation failed > > ACPI Exception: AE_NOT_ACQUIRED, Unable to install System Control > > Interrupt handler 20090521 evevent-161 > > ACPI: Unable to start the ACPI Interpreter > > ------------[ cut here ]------------ > > WARNING: at lib/kobject.c:595 kobject_put+0x27/0x3c() That is strange. I am not seeing this at all on my machine, but then I don't have such an ancient box. Can you provide the whole dmesg and as well the Xen bootup to figure out why it seems to not have IRQ slots open.