Re: [Qemu-devel] [PATCH] pseries: do not allow memory-less/cpu-less NUMA node

2019-09-02 Thread David Gibson
On Fri, Aug 30, 2019 at 06:13:45PM +0200, Laurent Vivier wrote: > When we hotplug a CPU on memory-less/cpu-less node, the linux kernel > crashes. > > This happens because linux kernel needs to know the NUMA topology at > start to be able to initialize the distance lookup table. > > On pseries, th

Re: [Qemu-devel] [PATCH] pseries: do not allow memory-less/cpu-less NUMA node

2019-08-30 Thread Daniel P . Berrangé
On Fri, Aug 30, 2019 at 06:13:45PM +0200, Laurent Vivier wrote: > When we hotplug a CPU on memory-less/cpu-less node, the linux kernel > crashes. > > This happens because linux kernel needs to know the NUMA topology at > start to be able to initialize the distance lookup table. > > On pseries, th