Messages in this thread |  | | Date | Mon, 08 Jun 2009 09:20:23 -0400 | From | Rik van Riel <> | Subject | Re: [Bug #13319] Page allocation failures with b43 and p54usb |
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Mel Gorman wrote:
> We've encountered this before and the conclusion was that the current > adjustments for watermark calculations of high-order allocations is right, > or at least there is no better alternative. In other words, the page > allocator in this instance is behaving as expected. Do we want to > revisit that discussion as to whether the watermark calculations for > high-order allocation should change? I think we'll reach the same > conclusion or at least decide that allowing the order-1 atomic > allocation to succeed here would just postpone the problem.
It would not just postpone the problem, it would also bring the system closer to a state where kswapd does something about the order-1 free areas.
This might postpone the problem indefinately.
Currently the system fails early, without kswapd kicking in and freeing new order-1 areas.
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