Re: [RFC] oom, but there is enough memory

[Michal Hocko]

On Thu 31-03-16 17:38:06, Xishi Qiu wrote:
[...]
> Hi Michal,
> 
> It's arm64, so DMA is [0-4G], and Normal is [4G-]

I wasn't aware of that. Thanks for the clarification.

> Is that something wrong with the RAM hardware, then trigger the problem?

This is hard to tell but I would try to check which of the page fault
path has returned with VM_FAULT_OOM. This might be a wrong .fault
callback.
-- 
Michal Hocko
SUSE Labs