Re: [PATCH] powerpc/numa: fix hot-added CPU on memory-less node

2018-11-21 Thread Laurent Vivier
On 15/11/2018 10:19, Satheesh Rajendran wrote: > On Wed, Nov 14, 2018 at 06:03:19PM +0100, Laurent Vivier wrote: >> Trying to hotplug a CPU on an empty NUMA node (without >> memory or CPU) crashes the kernel when the CPU is onlined. >> >> During the onlining process, the kernel calls

Re: [PATCH] powerpc/numa: fix hot-added CPU on memory-less node

2018-11-15 Thread Laurent Vivier
On 15/11/2018 10:19, Satheesh Rajendran wrote: > On Wed, Nov 14, 2018 at 06:03:19PM +0100, Laurent Vivier wrote: >> Trying to hotplug a CPU on an empty NUMA node (without >> memory or CPU) crashes the kernel when the CPU is onlined. >> >> During the onlining process, the kernel calls

Re: [PATCH] powerpc/numa: fix hot-added CPU on memory-less node

2018-11-15 Thread Satheesh Rajendran
On Wed, Nov 14, 2018 at 06:03:19PM +0100, Laurent Vivier wrote: > Trying to hotplug a CPU on an empty NUMA node (without > memory or CPU) crashes the kernel when the CPU is onlined. > > During the onlining process, the kernel calls start_secondary() > that ends by calling >

[PATCH] powerpc/numa: fix hot-added CPU on memory-less node

2018-11-14 Thread Laurent Vivier
Trying to hotplug a CPU on an empty NUMA node (without memory or CPU) crashes the kernel when the CPU is onlined. During the onlining process, the kernel calls start_secondary() that ends by calling set_numa_mem(local_memory_node(numa_cpu_lookup_table[cpu])) that relies on