Re: [Xen-users] Troubleshooting Xen 4.0 + 2.6.32.16 pv_ops install

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Thu, Jul 15, 2010 at 08:51:24PM +0200, Peter Braun wrote:
> Little progress.
> 
> I took .config from Ubuntu 10.04 server headers and compiled jeremy
> git kernel with it.
> Obviously its almost full kernel config enabled.
> 
> I tried to boot xen with it - I can see the output - but it ends with panic.
> 
> Please see enclosed screenshot.
> 
> Grub entry looks like this:
> 
> menuentry "Xen 4.0.1-rc4-pre / Ubuntu 10.4 kernel 2.6.32.16 pvops" {
> insmod ext2
> set root='(hd0,1)'
> multiboot (hd0,1)/xen-4.0.1-rc4-pre.gz dom0_mem=1024M dummy=dummy
> com1=115200,8n1 console=com1,tty,vga com1=115200,8n1
> module (hd0,1)/vmlinuz-2.6.32.16 dummy=dummy root=/dev/sda1 ro nopat
> console=tty0 console=ttyS0,115200n8
> }
> 

Remember you need the dummy arguments for grub2!

See: http://wiki.xensource.com/xenwiki/XenCommonProblems

-- Pasi

> But still cant get serial output, but at least I can see error on the
> screen outpu.
> 

You should have "console=hvc0 earlyprintk=xen" for the dom0 kernel (vmlinuz),
so that dom0 kernel will log through Xen hypervisor.

-- Pasi

> Any idea?
> 
> Peter
> 
> 2010/7/15 Matej Zary <matej.zary@xxxxxxxxx>:
> > And also there's link to this dedicated wiki page - 
> > http://wiki.xensource.com/xenwiki/XenSerialConsole.
> >
> >
> > Regards
> >
> > Matej
> >
> > -----Original Message-----
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Boris Derzhavets
> > Sent: Thursday, July 15, 2010 1:30 PM
> > To: Peter Braun
> > Cc: Xen List
> > Subject: Re: [Xen-users] Troubleshooting Xen 4.0 + 2.6.32.16 pv_ops install
> >
> >> How to get serial output of dom0 kernel?
> > View http://wiki.xensource.com/xenwiki/XenParavirtOps. Sample is there.
> >
> > Boris.
> >
> > --- On Thu, 7/15/10, Peter Braun <xenware@xxxxxxxxx> wrote:
> >
> >
> >
> >        From: Peter Braun <xenware@xxxxxxxxx>
> >        Subject: Re: [Xen-users] Troubleshooting Xen 4.0 + 2.6.32.16 pv_ops 
> > install
> >        To: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>
> >        Cc: "Xen List" <xen-users@xxxxxxxxxxxxxxxxxxx>
> >        Date: Thursday, July 15, 2010, 7:23 AM
> >
> >
> >        Yes, its working.
> >        I use it for testing for long time.
> >        How to get serial output of dom0 kernel?
> >
> >        2010/7/15, Boris Derzhavets <bderzhavets@xxxxxxxxx>:
> >        >> Also me myself  booted this kernel config correctly in vmware 
> > machine
> >        >> with
> >        >  mirror sw configuration.
> >        >
> >        > It's a bit confusing.
> >        > Are you saying , that you loaded Xen Hypervisor in VMWare VM and 
> > then
> >        > tried to load kernel with Dom0 support in the same VM under Xen ?
> >        >
> >        > Boris.
> >        >
> >        > --- On Thu, 7/15/10, Peter Braun <xenware@xxxxxxxxx> wrote:
> >        >
> >        > From: Peter Braun <xenware@xxxxxxxxx>
> >        > Subject: [Xen-users] Troubleshooting Xen 4.0 + 2.6.32.16 pv_ops 
> > install
> >        > To: "Xen List" <xen-users@xxxxxxxxxxxxxxxxxxx>
> >        > Date: Thursday, July 15, 2010, 6:37 AM
> >        >
> >        > Hi,
> >        >
> >        > I have several servers Supermicro - running Xen 3.4.1 @ debian 5.0 
> > x64
> >        > running without any issues for more than year.
> >        >
> >        > Now I bought new server with exactly same config and installed 
> > Ubuntu
> >        > 10.04 x64 - Xen 4.0.1-rc4 - 2.6.32.16 pv_ops
> >        >
> >        > - base Ubuntu 10.04 install boot without issues
> >        > - Xen 4.0.1-rc4 compiled and installed withou any problems
> >        > - 2.6.32.16 pv_ops dom0 kernel with custom config. That config has
> >        > Boris verified as working here in mailing list.
> >        >   Also me mysel booted this kernel config correctly in vmware 
> > machine
> >        > with mirror sw configuration.
> >        >
> >        > I tried to boot dom0 kernels:
> >        > - from older machines 2.6.18.8
> >        > - Debian 2.6.32 backports
> >        > with same result - reboot after Xen 4.0.1
> >        >
> >        > Boot process:
> >        > Xen 4.0.1 part boots OK afterward processing dom0 kernel get 
> > machine
> >        > to hard reset. I dont see anything on screen.
> >        > The machine is remote - i have supermicro KVM console connection.
> >        > There is option for serial console output.
> >        >
> >        >
> >        > Please can you point me how to troubleshoot this ?
> >        >
> >        > Thanks
> >        >
> >        > Peter
> >        >
> >        > _______________________________________________
> >        > Xen-users mailing list
> >        > Xen-users@xxxxxxxxxxxxxxxxxxx
> >        > http://lists.xensource.com/xen-users
> >        >
> >        >
> >        >
> >        >
> >
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> >
> >
> >
> >
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> >


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