lkml.org 
[lkml]   [2019]   [Sep]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v6] numa: make node_to_cpumask_map() NUMA_NO_NODE aware
On Wed, Sep 25, 2019 at 11:45:26PM +0200, Peter Zijlstra wrote:
> [ 7.149889] [Firmware Bug]: device: 'pci0000:7f': no node assigned on NUMA capable HW
> [ 7.882888] [Firmware Bug]: device: 'pci0000:ff': no node assigned on NUMA capable HW

Going by the limited number of intel numa boxes I have, it looks like:

socket = (~busid) >> (8-n)

where 'n' is the number of bits required to encode the largest socket
id, ie 1 for 2-socket and 2 for 4 socket.

For 8 socket systems we start using pci domains, and things get more
'interesting' :/

\
 
 \ /
  Last update: 2019-09-26 11:09    [W:0.082 / U:0.964 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site