On Thu 16-03-17 01:47:33, l...@pengaru.com wrote: [...] > While on the topic of understanding allocation stalls, Philip Freeman recently > mailed linux-kernel with a similar report, and in his case there are plenty of > page cache pages. It was also a GFP_HIGHUSER_MOVABLE 0-order allocation.
care to point me to the report? > I'm no MM expert, but it appears a bit broken for such a low-order allocation > to stall on the order of 10 seconds when there's plenty of reclaimable pages, > in addition to mostly unused and abundant swap space on SSD. yes this might indeed signal a problem. -- Michal Hocko SUSE Labs