Re: [RFC PATCH] iommu/amd: fix a race in fetch_pte()

From: Joerg Roedel
Date: Wed Apr 29 2020 - 07:20:19 EST


On Mon, Apr 20, 2020 at 09:26:12AM -0400, Qian Cai wrote:
> No dice. There could be some other races. For example,

Can you please test this branch:

https://git.kernel.org/pub/scm/linux/kernel/git/joro/linux.git/log/?h=amd-iommu-fixes

It has the previous fix in it and a couple more to make sure the
device-table is updated and flushed before increase_address_space()
updates domain->pt_root.

Thanks,

Joerg