From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Richard W.M. Jones" Subject: Re: KVM-58 -- existing VM just hangs with black screen Date: Wed, 02 Jan 2008 12:20:35 +0000 Message-ID: <477B8193.9030507@redhat.com> References: <477B7EAC.8060807@redhat.com> <477B7F82.6090705@qumranet.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1919182125==" Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Avi Kivity Return-path: In-Reply-To: <477B7F82.6090705-atKUWr5tajBWk0Htik3J/w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org This is a cryptographically signed message in MIME format. --===============1919182125== Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms020207070804000707060504" This is a cryptographically signed message in MIME format. --------------ms020207070804000707060504 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Avi Kivity wrote: > Richard W.M. Jones wrote: >> I've just got an upgrade to KVM-58 as part of the latest Fedora. >> >> Unfortunately my existing VM (a Windows 2008 Server instance) no >> longer boots. In fact it hardly gets anywhere at all. Immediately >> after running qemu-kvm, I just get a black screen (no BIOS/boot >> messages at all) and using 100% of CPU. >> >> No kernel messages. 'strace' indicates that qemu-kvm is doing a lot >> of stuff (issuing lots of ioctl, gettimeofday, etc.). >> >> I can get to the qemu monitor. Are there any useful commands to issue? >> >> 'info blockstats' shows a single 512 byte read from ide-hd0, >> presumably it has read the boot sector but for some reason cannot boot >> from it. >> >> Any ideas on what I can do to debug this further? > > Can you identify which version of kvm introduced the regression? kvm-56 for Fedora (from http://koji.fedoraproject.org/koji/packageinfo?packageID=2261) *works*. I will try to build an RPM based on KVM-57 and see what that does, but at the moment it seems to be somewhere between KVM-56 and now. Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. 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