[PATCH 0/1] ppc64: Convert cpu_sibling_map to a per_cpu data array ppc64 v2

travis at sgi.com travis at sgi.com
Tue Sep 18 04:35:07 EST 2007

Stephen Rothwell wrote:
> On Mon, 17 Sep 2007 16:28:31 +1000 Stephen Rothwell <sfr at canb.auug.org.au> wrote:
>> 	the topology (on my POWERPC5+ box) is not correct:
>> cpu0/topology/thread_siblings:0000000f
>> cpu1/topology/thread_siblings:0000000f
>> cpu2/topology/thread_siblings:0000000f
>> cpu3/topology/thread_siblings:0000000f
>> it used to be:
>> cpu0/topology/thread_siblings:00000003
>> cpu1/topology/thread_siblings:00000003
>> cpu2/topology/thread_siblings:0000000c
>> cpu3/topology/thread_siblings:0000000c
> This would be because we are setting up the cpu_sibling map before we
> call setup_per_cpu_areas().

The following patch hopefully should fix this problem.  I'm
not able to build or test it but the few references to 
cpu_sibling_map seem to all occur well after setup_per_cpu_areas
is called.

Thanks Stephen for checking this out!


More information about the Linuxppc-dev mailing list