Re: [Xen-devel] 4.2 unstable kernel restarting before booting OS kernel

[David Erickson <halcyon1981@xxxxxxxxx>]

On Sat, Jul 14, 2012 at 4:09 PM, Ian Campbell <ian.campbell@xxxxxxxxxx> wrote:
> On Sat, 2012-07-14 at 19:01 -0400, David Erickson wrote:
>> Hi Ian-
>> noreboot prevented the reboot, but it has hung right after Xen blanked
>> the screen.  My USB serial port is about a half an hour away so I'll
>> get that later on and see if I can get any more info from its output.
>
> Great, thanks.
>
>> Are there any kernel changes required when going from 4.1->4.2?
>> Should my kernel that works fine with 4.1 work with 4.2?
>
> There's no particular linkage between the kernel and the hypervisor
> version. So your kernel should be fine.
>
>>   And
>> presumably since it has hung and the noreboot line was on the xen
>> kernel line, the problem exists in the xen kernel?
>
> It could still be either I think.
>
> Did you see the last thing printed before the screen went blank?

It went by super fast, it was hard to see, I'll get the cable and report back.


> You might want to add debug options to both command lines, there's some
> stuff about that in
> http://wiki.xen.org/wiki/XenParavirtOps
>
> You mention the screen going blank, might be worth having a look through
> http://wiki.xen.org/wiki/XenPVOPSDRM

Thanks I'll take a look at these.

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