On Thu, Sep 26, 2019 at 11:05:59AM +0200, Peter Zijlstra wrote: > 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)
Bah, I got my notes mixed up, it should be: 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' :/
