Messages in this thread | | | Date | Wed, 27 Jan 2010 15:46:15 -0800 (PST) | From | David Rientjes <> | Subject | Re: [PATCH v3] oom-kill: add lowmem usage aware oom kill handling |
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On Wed, 27 Jan 2010, KAMEZAWA Hiroyuki wrote:
> Yes, I think you're right. But "breaking current behaviro of our servers!" > arguments kills all proposal to this area and this oom-killer or vmscan is > a feature should be tested by real users.
Nobody has said we should discount lowmem rss when dealing with a GFP_DMA allocation, it simply wasn't possible until the lowmem rss counters were introduced in -mm. It would prevent the needless killing of innocent tasks which would not allow the page allocation to succeed, so it's a good feature to have. It doesn't need to be configurable at all, we just need to find a way to introduce it into the heuristic without mangling oom_adj.
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