Messages in this thread | | | Date | Tue, 6 Apr 2010 13:15:12 +0900 | Subject | Re: [PATCH] mm: Check if any page in a pageblock is reserved before marking it MIGRATE_RESERVE | From | Minchan Kim <> |
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On Tue, Apr 6, 2010 at 12:09 PM, Arve Hjønnevåg <arve@android.com> wrote: > This fixes a problem where the first pageblock got marked MIGRATE_RESERVE even > though it only had a few free pages. This in turn caused no contiguous memory > to be reserved and frequent kswapd wakeups that emptied the caches to get more > contiguous memory.
It would be better to add following your description of previous mail thread. It can help others understand it in future.
On Fri, Apr 02, 2010 at 05:59:00PM -0700, Arve Hj?nnev?g wrote: ... "I think this happens by default on arm. The kernel starts at offset 0x8000 to leave room for boot parameters, and in recent kernel versions (>~2.6.26-29) this memory is freed."
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