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xen-devel
Re: [Xen-devel] testing 32bit PAE pv_ops dom0...
On Sat, Jan 10, 2009 at 09:05:17PM +0100, Marc - A. Dahlhaus wrote:
> Pasi Kärkkäinen schrieb:
> >On Sat, Jan 10, 2009 at 06:45:59PM +0100, Marc - A. Dahlhaus wrote:
> >
> >>Hello,
> >>
> >>i had no luck in booting 32bit PAE pv_ops dom0 on xen-3.4-unstable so
> >>far...
> >>Booting the bzImage on bare Metal works like a charm (it's even stable
> >>under high load), but booting the vmlinux over xen gives just a jump of
> >>the cursor to the top left corner after the last messages from the
> >>hypervisor. My Test-Box (Dell XPS-720) lacks a serial port so i can't
> >>check if it's just a vga issue.
> >>
> >>I have most xen related options configured as modules maybe that might
> >>be the problem. I'll try to check that out over the next week.
> >>
> >>Next thing i'll try is to use xen-3.3.1 hypervisor to check that it's
> >>not hypervisor related.
> >>I also try to dig out some older Boxes on which 3.3.1 runs at the moment
> >>and try if it actually prints something to a serial console...
> >>
> >>
> >
> >VGA console is not currently working in pv_ops dom0 patches. At least I
> >haven't figured out how to make it work.
> >
> >Serial console works for me.
> >
> >There seems to be some problems with IRQ routing (?).. and thus ahci and
> >ata_piix
> >drivers don't seem to work currently.
> >
> >Hopefully next week we can get some debugging done when Jeremy is back.
> >
> >-- Pasi
> >
> Hello Pasi,
>
> followed the discussions about that and was sad to read that as my boxes
> here also use the ata_piix module to
> get the root device. I'll try to build a x86_64 image tomorrow as is
> think it's a PAE problem.
> Can you send me your working kernel config file?
>
My pv_ops dom0 kernel (32b PAE) config is here:
http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.28-rc8-tip-dom0
My grub config:
title pv_ops dom0-test (2.6.28-rc8-tip) / serial console
root (hd0,0)
kernel /xen-3.3.gz dom0_mem=1024M loglvl=all guest_loglvl=all
com1=19200,8n1 console=com1
module /vmlinuz-2.6.28-rc8-tip.gz ro root=/dev/vg00/lv01 console=hvc0
earlyprintk=xen pci=nomsi
module /initrd-2.6.28-rc8-tip.img
vmlinuz-2.6.28-rc8-tip.gz is gzipped "vmlinux" file from the kernel build.
Initially I was using Xen 3.3.0, but I recently updated to Xen 3.3.1. Didn't
help. The problem is in the pv_ops dom0 kernel, not in the hypervisor, I think.
> I also got another hickup here. On 3 other Boxes i tested on i get an
> instant reboot after the dom0 builder executes
> the pv_ops vmlinuz image... i think it panics pretty close after
> execution on 32bit PAE...
> I have to dig out a serial cable to put some boxes together to capture
> some logs. I'll post them when i get there.
-- Pasi
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