Re: [Xen-devel] arm: alloc_heap_pages allocates already allocated page

[Julien Grall <julien.grall@xxxxxxx>]

On 07/02/2017 11:10, Vijay Kilari wrote:
> On Tue, Feb 7, 2017 at 3:37 PM, Julien Grall <julien.grall@xxxxxxx> wrote:
> > On 07/02/2017 08:18, Vijay Kilari wrote:
> > >    I am seeing below panic with NUMA during DT mappings in
> > > alloc_heap_pages()
> > > BUG_ON(pg[i].count_info != PGC_state_free);
> > > However, this issue is not there with 4.7 version. The same NUMA board
> > > boots fine.
> >
> > I am a bit confused by what you are saying. Xen on ARM does not yet support
> > NUMA. I also know you are working on NUMA support. So does the BUG happen on
> > upstream xen or upstream xen + your patches?
> I was testing with Andre ITS patches (RFC version 1) + my NUMA patches
> + upstream xen.
> However now I tested with upstream xen + Andre ITS patches (staging
> branch) on NUMA board.
The RFC v1 is quite an old version. Please give a try using the latest 
version [1].
> I see panic (similar to what I see with my patches). Log are here.
Well the panic is different now. An ASSERT in list_del is hit this time. 
This looks like a memory corruption to me.
> http://pastebin.com/QJqUBvD9
>
> The same plain upstream xen + Andre ITS patches boots fine with non-NUMA board.
I know that DOM0 cannot boot without ITS on your platform. But as you 
don't reach DOM0, have you tried to boot without the ITS series on NUMA 
board?
Regards,

[1] https://lists.xen.org/archives/html/xen-devel/2017-01/msg03276.html

--
Julien Grall

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