Re: [Xen-devel] [PATCH 0/3] per_cpu() fixes

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 26/09/13 10:49, Andrew Cooper wrote:
> This patch series is two independent but related changes to the use of
> per_cpu() with offline pcpus.
>
> The first patch is a fix for use of get_cpu_idle_time() whereby toolstack
> hypercalls could cause an effective NULL structure dereference.
>
> The second patch is a forward looking fix to try and prevent similar issues in
> the future.  It causes uses of per_cpu() against an offline pcpu to cause a
> #GF rather than to try and dereference a very low address.
>
> The third patch is debugging code to demonstrate the effects of patch 2.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> CC: Keir Fraser <keir@xxxxxxx>
> CC: Jan Beulich <JBeulich@xxxxxxxx>
> CC: Tim Deegan <tim@xxxxxxx>
> CC: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
> CC: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
>

Ping?  Any thoughts at all?

~Andrew

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel