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Re: [Xen-devel] xen 4.0.1 from gitco + Kernel Dom0 from git won'¡t start


SO guyes, any idea on what could be causing my system ro freeze like showed on the video?.


David Gonzalez H.
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On Fri, Dec 3, 2010 at 7:43 PM, David Gonzalez <info@xxxxxxxxxxx> wrote:

On Fri, Dec 3, 2010 at 5:26 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
On Fri, Dec 03, 2010 at 04:29:45PM -0500, David Gonzalez wrote:
>    Hi,
>    I'm using CentOS 5.5 x64 and installed xen 4.0.1 with stock centos
>    2.6.18-194.26.1.el5xen kernel and initially it's working flawlesly, but I
>    want/need to use the pv_ops dom0 kernel, so I followed instructions from
>    this blog
>    [1]http://ppadala.net/blog/2010/09/how-to-setup-xen4-and-pvops-2-6-32-x-on-centos-5-5-using-gitco-repository/
>    I bult the kernel correclty and no errors showed up but when I try to boot
>    with the new kernel a panic shows and then the machine reboots into a
>    cycle I don't have serial console where to log kernel messages and as the
>    machine reboots I cannot take a note of what shows up, my grub.conf liooks
>    like this:
>    title        pv_ops dom0 (
>    root       (hd0,0)
>    kernel    /xen.gz-4.0.1 dom0_mem=512M loglvl=all guest_loglvl=all

Try adding "noreboot lapic=debug apic_verbosity=debug apic=debug iommu=off" to xen.gz line.

>    module  /vmlinuz- ro root=/dev/vhost/root earlyprintk=xen
>    nomodeset selinux=0

Also add "initcall_debug debug loglevel=10" to the vmlinuz line.

>    module       /initrd-
>    If you can guide me on how to provide you with more informatio I'd be very
>    happy as this last step has always goven me this results.

Hopefully those help.

-- Pasi

Done, as I'm just compiling another kernel after it finishes I'll post the results.

Is there any centos-frienly or centos working .config file I can use. as  a note I used this http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config- from

"Xen paravirt_ops for upstream Linux kernel"

Sorry for the big fonts

Thanks again

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