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

