On 2019/3/15 10:19, Kefeng Wang wrote:
> It maybe trigger some issue when the acpi device driver allocs memory
> from an offline node, so use alternative acpi_map_pxm_to_online_node()
> to find an online node, let's show infomation about proximity ID, mapped
> offline node and the nearest online node returned.
>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
> ---
> drivers/acpi/numa.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
> index 7bbbf8256a41..064c771a7338 100644
> --- a/drivers/acpi/numa.c
> +++ b/drivers/acpi/numa.c
> @@ -121,6 +121,9 @@ int acpi_map_pxm_to_online_node(int pxm)
> }
> }
> }
> + if (min_node != node)
> + pr_warn("IORT: PXM %d Mapped to offline node %d, choose nearest online node %d",
> + pxm, node, min_node);
Should remove IORT prefix, some other table like NFIT, DMAR have PXM filed, waiting for review.
>
> return min_node;
> }
