Re: [PATCH 0/2] arm64/drivers: avoid alloc memory on offline node

2018-05-31 Thread Hanjun Guo
Hi Xiuqi, On 2018/5/31 20:14, Xie XiuQi wrote: > A numa system may return node which is not online. > For example, a numa node: > 1) without memory > 2) NR_CPUS is very small, and the cpus on the node are not brought up I think adding detail info will be easy to be understood: - NUMA node will b

[PATCH 0/2] arm64/drivers: avoid alloc memory on offline node

2018-05-31 Thread Xie XiuQi
A numa system may return node which is not online. For example, a numa node: 1) without memory 2) NR_CPUS is very small, and the cpus on the node are not brought up In this situation, we use NUMA_NO_NODE to avoid oops. [ 25.732905] Unable to handle kernel NULL pointer dereference at virtual ad