Re: KVM on ARM

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On 01/19/2013 05:29 PM, Christoffer Dall wrote:
> On Sat, Jan 19, 2013 at 11:20 AM, Alexander Graf<agraf@xxxxxxx>  wrote:
>> On 19.01.2013, at 17:13, Christoffer Dall wrote:
>>
>>> On Sat, Jan 19, 2013 at 9:31 AM, Alexander Graf<agraf@xxxxxxx>  wrote:
>>>> Hey Christoffer,
>>>>
>>>> I'm trying to use KVM on ARM with your Arndale branch + the icache patch you posted recently. I am running into odd kernel oopses quite often though. Do any of these ring a bell?
>>>>
>>> Eh, not really. Arndale is quite stable for me (provided you compile
>>> everything as ARM and not Thumb-2). Is the crash you're seeing on the
>>> host or on the guest?
>> These are all within the guest. The host has been completely stable for me so far.
>>
>>> Which icache patch do you mean? The dcache in Hyp mode?
>> Yeah, the dcache in Hyp mode patch. I recompiled the kernel without and now I can't get the system up anymore, as it's locked in a room with lots of security measures I can't circumvent :). Monday I'll know more.
>>
>>> This branch should work at least:
>>> https://github.com/virtualopensystems/linux-kvm-arm/commits/lue_arndale-kvm-huge-vmexit
>> Ah, I am basing off of https://github.com/columbia/linux-kvm-arm/tree/lue_arndale-kvm. I can try the other one again on monday.
>>
> I'll make sure my arndale branches are nicely up to date with recent
> patch series and test things this weekend as well.

Thanks a bunch :).

Turns out this was only slightly related to KVM. I was running a guest 
with -m 1000, but the guest dtb said it had 1024 MB. So the OOPSes 
result from the kernel accessing memory from 1000-1024MB. Yay.


Alex


>
> -Christoffer

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