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

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Mon, Jul 19, 2010 at 04:35:40PM +0200, Peter Braun wrote:
> OK so here is my result:
> 
> Mainboad Supemicro X8DTT-F
> http://www.supermicro.com/products/motherboard/QPI/5500/X8DTT-F.cfm
> 
> CPU Xeon X5650
> 
> Debian 5.0 x64
> 
> Xen 4.0.1-rc4 x64
> 
> Kernels:
> 1) xenified 2.6.18.8 dom0 --- OK
> 2) xen + pv_ops 2.6.31.13 dom0 --- OK
> 3) xen + pv_ops 2.6.32.16 dom0 --- stops booting at "Write protecting
> the kernel read-only data: 7224k"

Please add "earlyprintk=xen console=hvc0" parameters for the dom0 pvops kernel.

If that doesn't show you more, please use a serial console to capture 
the full Xen + dom0 kernel boot messages:
http://wiki.xensource.com/xenwiki/XenSerialConsole

Also more troubleshooting xen/kernel options here:
http://wiki.xensource.com/xenwiki/XenParavirtOps

Those should get you forward.

-- Pasi


> 4) pv_ops 2.6.32.16 same kernel as 3) --- baremetal boots OK
> 5) xen + pv_ops 2.6.32.16 dom0 in VMware VM on different machine --- OK
> 6) xen + 2.6.34 dom0 from brand new OpenSUSE 11.3 --- OK
> 7) 2.6.33.x pv_ops - compile errors
> 
> My motherborad has lastest BIOS, several tests done with different
> BIOS and kernel configs.
> 
> So my conclusion is that there is something wrong in combination Xen
> 4.0.1-rc4 + 2.6.32.16 pv_ops + X8DTT-F
> 
> Since 2.6.32 pv_ops kernel should be "long term support" I would like
> to use this one, but currently its not working for me.
> 
> If anybody has idea how to troubleshoot / make it working - please give me.
> 
> 
> Br
> 
> Peter
> 
> 
> 
> 
> 2010/7/16 Peter Braun <xenware@xxxxxxxxx>:
> > I gave up on Ubuntu 10.04 and tried Debian 5.0 x64.
> >
> > Still using 4.0.1-rc4 and jeremy git kernel 2.6.32.16
> >
> > Things little changed:
> >
> > 1) I can succesfully boot xenified 2.6.18.8 dom0 kernel!
> >
> > 2) 2.6.32.16 pv_ops kernel boot stops at point
> >    "Write protecting the kernel read-only data: 7224k"
> >    Than machinge reboots
> >
> > Grub entry:
> >
> > title        Xen 4.0, Linux kernel 2.6.32.16
> > root         (hd0,0)
> > kernel       /xen-4.0.gz dom0_mem=1024M loglvl=all guest_loglvl=all
> > module       /vmlinuz-2.6.32.16 root=/dev/sda2 ro nomodeset
> >
> >
> > title        Xen 4.0, Linux kernel 2.6.18.8
> > root         (hd0,0)
> > kernel       /xen-4.0.gz dom0_mem=1024M loglvl=all guest_loglvl=all
> > module       /vmlinuz-2.6.18.8-xen0 root=/dev/sda2 ro nomodeset
> >
> > Kernel config included.
> >
> >
> >
> > Br
> >
> > Peter
> >
> 
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