Re: [Xen-devel] CONFIG_SCRUB_DEBUG=y + arm64 + livepatch = Xen BUG at page_alloc.c:738

[Julien Grall <julien.grall@xxxxxxx>]

Hi,

On 09/13/2017 07:05 PM, Boris Ostrovsky wrote:
> On 09/13/2017 11:32 AM, Konrad Rzeszutek Wilk wrote:
> Well, that's not a fix. This eliminates the case that something in
> ARM-specific code (which I haven't tested) accidentally clears
> _PGC_need_scrub.
>
> OK, I think I know what the problem is. You are using
> CONFIG_SEPARATE_XENHEAP, are you?
It seems the bug appear on Arm64, so CONFIG_SEPARATE_XENHEAP is not set.

Note that Arm32 is using separate heap.

Cheers,

--
Julien Grall

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