Re: [Xen-devel] Kernel 2.6.31.6 pv_ops freeze on start

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Thu, Jan 14, 2010 at 11:00:59PM -0800, Fantu wrote:
> 
> without add also in vmlinux not show all (see precedent first post of debug)
> the actual entry of grub is:
> menuentry "Xen 4 hg-un DEBUG, linux 2.6.31.6" {
>       set root=(hd0,1)
>       multiboot /boot/xen-4.gz dom0_mem=1024M iommu=passthrough,pv loglvl=all
> guest_loglvl=all sync_console console_to_ring com2=56700,8n1
> console=com2,vga
>       module /boot/vmlinuz-2.6.31.6 root=LABEL=root-raid ro console=hvc0
> console=com2,vga earlyprintk=xen
>       module /boot/initrd.img-2.6.31.6
> }
> what i change for do correct and complete?
>

Looks like you're using GRUB2. It is known to remove the first 
parameter for kernel,  so you need to add a dummy option there.

ie. iun your case GRUB2 will remove the "root=" parameter, 
making your dom0 kernel fail booting.

See: 
http://old.nabble.com/Strange-interaction-from-grub2-and-XEN-td26464067.html

So your GRUB2 entry should be something like this:

menuentry "Xen 4 hg-un DEBUG, linux 2.6.31.6" {
        insmod ext2
        set root=(hd0,1)
        multiboot /boot/xen-4.gz dom0_mem=1024M iommu=passthrough,pv loglvl=all 
guest_loglvl=all sync_console console_to_ring com2=56700,8n1 console=com2,vga
        module /boot/vmlinuz-2.6.31.6 dummy=dummy root=LABEL=root-raid ro 
console=hvc0 earlyprintk=xen nomodeset
        module /boot/initrd.img-2.6.31.6
}

(serial console stuff fixed aswell).
For more information see: http://wiki.xensource.com/xenwiki/XenParavirtOps

Btw is that a real physical serial port on the motherboard, 
or some virtual serial port (SOL) from a management prosessor, or a PCI serial 
card?

-- Pasi


> 
> Konrad Rzeszutek Wilk wrote:
> > 
> > On Wed, Jan 13, 2010 at 03:05:53AM -0800, Fantu wrote:
> >> 
> >> In attachment file output of lspci -vv do on some server (Dell T610 bios
> >> 1.3.6) with hardy with xen 3.3 from backports
> >> http://old.nabble.com/file/p27143153/lspcivv.log lspcivv.log 
> > 
> > In your vmlinuz argument line:
> > root=LABEL=root-raid ro console=hvc0 console=com2,vga earlyprintk=xen
> > 
> > The second console=com2,vga should not be there (that syntax is only
> > applicable to the Xen command line).
> > 
> > Also add these extra arguments to the Linux command line:
> > initcall_debug debug loglevel=10
> > 
> > That should out a bit in figuring out where you are stuck.
> > 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel
> > 
> > 
> 
> -- 
> View this message in context: 
> http://old.nabble.com/Kernel-2.6.31.6-pv_ops-freeze-on-start-tp27059994p27173149.html
> Sent from the Xen - Dev mailing list archive at Nabble.com.
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel