Re: [PATCH 3/3] mm/page_alloc: Keep memoryless cpuless node 0 offline

2020-03-18 Thread Christopher Lameter
On Mon, 16 Mar 2020, Michal Hocko wrote: > > We can dynamically number the nodes right? So just make sure that the > > firmware properly creates memory on node 0? > > Are you suggesting that the OS would renumber NUMA nodes coming > from FW just to satisfy node 0 existence? If yes then I believe

Re: [PATCH 3/3] mm/page_alloc: Keep memoryless cpuless node 0 offline

2020-03-18 Thread Srikar Dronamraju
* Michal Hocko [2020-03-16 09:54:25]: > On Sun 15-03-20 14:20:05, Cristopher Lameter wrote: > > On Wed, 11 Mar 2020, Srikar Dronamraju wrote: > > > > > Currently Linux kernel with CONFIG_NUMA on a system with multiple > > > possible nodes, marks node 0 as online at boot. However in practice, >

Re: [PATCH 3/3] mm/page_alloc: Keep memoryless cpuless node 0 offline

2020-03-16 Thread Michal Hocko
On Sun 15-03-20 14:20:05, Cristopher Lameter wrote: > On Wed, 11 Mar 2020, Srikar Dronamraju wrote: > > > Currently Linux kernel with CONFIG_NUMA on a system with multiple > > possible nodes, marks node 0 as online at boot. However in practice, > > there are systems which have node 0 as

Re: [PATCH 3/3] mm/page_alloc: Keep memoryless cpuless node 0 offline

2020-03-15 Thread Christopher Lameter
On Wed, 11 Mar 2020, Srikar Dronamraju wrote: > Currently Linux kernel with CONFIG_NUMA on a system with multiple > possible nodes, marks node 0 as online at boot. However in practice, > there are systems which have node 0 as memoryless and cpuless. Would it not be better and simpler to require