Re: [Xen-devel] Fwd: Debugging "Xen BUG at ... list.h" on ARM

[Thomas Leonard <talex5@xxxxxxxxx>]

On 14 April 2014 12:47, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> On Mon, 2014-04-14 at 12:03 +0100, Thomas Leonard wrote:
>> On 14 April 2014 11:29, Julien Grall <julien.grall@xxxxxxxxxx> wrote:
>> > On 04/14/2014 11:10 AM, Thomas Leonard wrote:
>> >>> Has your guest enabled caching (SCTLR.C)? This is required by the
>> >>> hypercall ABI. See
>> >>> http://xenbits.xen.org/docs/unstable/hypercall/arm/include,public,arch-arm.h.html#incontents_arm_abi
>> >>
>> >> Here's my attempt to set up the translation table and enable caching:
>> >>
>> >> https://github.com/talex5/xen-paratest/tree/cache-problem
>> >
>> > Your page table looks wrong for me. Each page table should be write-back
>> > or write-through.
>>
>> Thanks - that fixed my test case!
>
> Excellent.
>
> Can you also just confirm for my peace of mind that the hypervisor crash
> was only reproducible with a locally modified hypervisor?

The crash happens with the unmodified hypervisor too. I added the
extra asserts only because it was crashing. Here's an example:

http://lists.xen.org/archives/html/xen-devel/2014-04/msg01702.html


-- 
Dr Thomas Leonard        http://0install.net/
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