From mboxrd@z Thu Jan 1 00:00:00 1970 From: Miguel Araujo Subject: Re: KVM behaves weird on AMD64 Date: Wed, 12 Sep 2007 14:27:46 +0200 Message-ID: <46E7DB42.60900@Nosys.net> References: <46E7BEE3.8090203@Nosys.net> <46E7C3DD.8020003@qumranet.com> <46E7C79E.9070409@Nosys.net> <46E7CA21.9000201@qumranet.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1540759841==" Cc: lista kvm-devel To: Avi Kivity Return-path: In-Reply-To: <46E7CA21.9000201-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 multi-part message in MIME format. --===============1540759841== Content-Type: multipart/alternative; boundary="------------020206060200080008050103" This is a multi-part message in MIME format. --------------020206060200080008050103 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Thanks Avi for your quick response and interest. Avi Kivity escribi=F3: > Miguel Araujo wrote: > =20 >> Avi Kivity escribi=F3: >> =20 >>> Miguel Araujo wrote: >>> =20 >>>> Hello all, >>>> >>>> I have recently compiled kvm-36 in my Ubuntu Desktop 7.04 64 bits=20 >>>> running 2.6.22. I can load the AMD module without problems. The=20 >>>> issue started when I tried to install OpenBSD 4.1 on a Virtual=20 >>>> Machine and It could not manage to write the MBR on disk. That=20 >>>> should not happen. I also tried to install an Ubuntu desktop and=20 >>>> server machines 32 bits and both of them got stuck on installation=20 >>>> when configuring fdutils, I have no idea why this happens. >>>> >>>> Eventually I get to install a Debian netinstall with the most basic=20 >>>> configuration and it worked. These are the tests I have made. By the= =20 >>>> way I checked that the Ubuntu machines did write in my 4G feisty.img= =20 >>>> file. >>>> >>>> Is anyone having problems with AMD64 and 2.6.22 kernels? Has anyone=20 >>>> a hint about what could I do to get these machines running? >>>> >>>> =20 >>>> =20 >>> What was the last kvm version where this worked correctly? >>> >>> =20 >> I'm using two machines for testing KVM. In machine "A" KVM worked=20 >> good. This is a Feisty 7.04 32 bits with 2.6.20-16 Ubuntu standard=20 >> kernel with kvm installed apt way. >> =20 > > Is this an Intel or an AMD machine? > =20 Intel - MacBook Pro > =20 >> The machine "B" is the one I have mentioned before and It's using a=20 >> 2.6.22 manually compiled kernel. It has been able to install only=20 >> Debian netinstall. I would like to know if there is some kind of issue= =20 >> with kvm and this kernel or with AMD64. >> >> =20 > It doesn't seem to be related to the machine being AMD. If you can=20 > provide an example where just one thing being different causes somethin= g=20 > to stop working, that would help us isolate the problem. Examples can=20 > be the host kernel, host cpu type, or kvm version. > > =20 The problem is that KVM does not install any Operative System (I forgot=20 to say that I also tried to Install Windows XP 32 bits) excepting Debian=20 netinstall (and this seems to be stable, no errors prompted till today).=20 Therefore, I'm not able to send you any other feedback than this. Just=20 saying fdutils makes it to get stuck in Ubuntu installation. How could I=20 try to make KVM fail or prompt something? Could I launch kvm in "debug"=20 mode? Installation logs of these machines look like the normal ones. Regards, Miguel --------------020206060200080008050103 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Thanks Avi for your quick response and interest.

Avi Kivity escribió: 
Miguel Araujo wrote:
  
Avi Kivity escribió:
    
Miguel Araujo wrote:
      
Hello all,

I have recently compiled kvm-36 in my Ubuntu Desktop 7.04 64 bits 
running 2.6.22. I can load the AMD module without problems. The 
issue started when I tried to install OpenBSD 4.1 on a Virtual 
Machine and It could not manage to write the MBR on disk. That 
should not happen. I also tried to install an Ubuntu desktop and 
server machines 32 bits and both of them got stuck on installation 
when configuring fdutils, I have no idea why this happens.

Eventually I get to install a Debian netinstall with the most basic 
configuration and it worked. These are the tests I have made. By the 
way I checked that the Ubuntu machines did write in my 4G feisty.img 
file.

Is anyone having problems with AMD64 and 2.6.22 kernels? Has anyone 
a hint about what could I do to get these machines running?

  
        
What was the last kvm version where this worked correctly?

      
I'm using two machines for testing KVM. In machine "A" KVM worked 
good. This is a Feisty 7.04 32 bits with 2.6.20-16 Ubuntu standard 
kernel  with kvm installed apt way.
    

Is this an Intel or an AMD machine?
Intel - MacBook Pro
  
The machine "B" is the one I have mentioned before and It's using a 
2.6.22 manually compiled kernel. It has been able to install only 
Debian netinstall. I would like to know if there is some kind of issue 
with kvm and this kernel or with AMD64.

    
It doesn't seem to be related to the machine being AMD.  If you can 
provide an example where just one thing being different causes something 
to stop working, that would help us isolate the problem.  Examples can 
be the host kernel, host cpu type, or kvm version.
The problem is that KVM does not install any Operative System (I forgot to say that I also tried to Install Windows XP 32 bits) excepting Debian netinstall (and this seems to be stable, no errors prompted till today). Therefore, I'm not able to send you any other feedback than this.  Just saying fdutils makes it to get stuck in Ubuntu installation. How could I try to make KVM fail or prompt something? Could I launch kvm in "debug" mode?
Installation logs of these machines look like the normal ones.

Regards,

          Miguel
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