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SubjectRe: 2.6.22-stable causes oomkiller to be invoked
On Wed, Jan 02, 2008 at 01:54:12PM -0800, Christoph Lameter wrote:
> Just traced it again on my system: It is okay for the number of pages on
> the quicklist to reach the high count that we see (although the 16 bit
> limits are weird. You have around 4GB of memory in the system?). Up to
> 1/16th of free memory of a node can be allocated for quicklists (this
> allows the effective shutting down and restarting of large amounts of
> processes)
>
> The problem may be that this is run on a HIGHMEM system and the
> calculation of allowable pages on the quicklists does not take into
> account that highmem pages are not usable for quicklists (not sure about
> ZONE_MOVABLE on i386. Maybe we need to take that into account as well?)
>
> Here is a patch that removes the HIGHMEM portion from the calculation.
> Does this change anything:
>

Yep. This one hits it. I don't see the obvious signs of the oom
happening in the 5 mins I have run the script. I will let it run for
some more time.

Thanks!
--
regards,
Dhaval


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