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Re: [Xen-devel] [PATCH v2 14/15] drm/amdgpu: Use mmu_range_notifier instead of hmm_mirror
- To: "Yang, Philip" <Philip.Yang@xxxxxxx>
- From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
- Date: Tue, 29 Oct 2019 19:25:48 +0000
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- Delivery-date: Tue, 29 Oct 2019 19:26:07 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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- Thread-topic: [PATCH v2 14/15] drm/amdgpu: Use mmu_range_notifier instead of hmm_mirror
On Tue, Oct 29, 2019 at 07:22:37PM +0000, Yang, Philip wrote:
> Hi Jason,
>
> I did quick test after merging amd-staging-drm-next with the
> mmu_notifier branch, which includes this set changes. The test result
> has different failures, app stuck intermittently, GUI no display etc. I
> am understanding the changes and will try to figure out the cause.
Thanks! I'm not surprised by this given how difficult this patch was
to make. Let me know if I can assist in any way
Please ensure to run with lockdep enabled.. Your symptops sounds sort
of like deadlocking?
Regards,
Jason
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