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Re: [Xen-users] kexec into dom0? my machine can't reboot reliably

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] kexec into dom0? my machine can't reboot reliably
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Mon, 13 Aug 2007 19:56:09 +0100
Cc: Tomasz Chmielewski <mangoo@xxxxxxxx>
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> >> You'd have to kexec the hypervisor and give it a module of the vmlinuz
> >> file, in the same way that grub does it.  I've no idea if kexec has
> >> that functionality though.
> >
> > All right, something like that gets me farther:
> >
> > kexec -l xen-3.1 --module="vmlinuz-2.6.18-xen-uncomp
> > initrd-2.6.18-xenU.img"
>
> Obviously, the module entry is wrong.
>
> # kexec -l xen-3.1 --module="vmlinuz-2.6.18-xen netloop.nloopbacks=16
> other_params..." --module="initrd-2.6.18-xenU.img" --append="noapic
> dom0_mem=128M"
> # kexec -e
>
> Ends with:
>
> (XEN) not enough memory to stash the DOM0 kernel image.

That's strange, given it obviously is capable of rebooting into dom0, given 
your previous errors not finding root.

I think your initrd line may be wrong, by the way - you're specifying a xenU 
initrd, not a xen0 initrd.  Did you mean to do this?

I'm afraid I'm not so familiar with the start of day code, so I'm not sure 
what's going on...  but it does look like it really ought to be possible to 
get things working better!

Cheers,
Mark

-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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