[dpdk-dev] [EXT] [PATCH] compress/mlx5: fix memory region unregistration

Michael Baum michaelba at nvidia.com
Thu Jul 8 08:25:35 CEST 2021


Hi,

From: Akhil Goyal 
> > The issue can cause illegal physical address access while a huge-page
> > A is released and huge-page B is allocated on the same virtual address.
> > The old MR can be matched using the virtual address of huge-page B but
> > the HW will access the physical address of huge-page A which is no
> > more part of the DPDK process.
> >
> > Register a driver callback for memory event in order to free out all
> > the MRs of memory that is going to be freed from the dpdk process.
> >
> > Fixes: f8c97babc9f4 ("compress/mlx5: add data-path functions")
> > Cc: stable at dpdk.org
> >
> > Signed-off-by: Michael Baum <michaelba at nvidia.com>
> > Acked-by: Matan Azrad <matan at nvidia.com>
> > ---
> CI is reporting error with this patch. Can you check?

This patch depends on this patch:
https://patchwork.dpdk.org/project/dpdk/patch/20210628150614.1769507-1-michaelba@nvidia.com/
It sent before and integrated to master-net-mlx branch, but not integrated to main branch.
This deficiency probably causes these CI errors.


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