Re: 2.6.22-stable causes oomkiller to be invoked

[Dhaval Giani <dhaval@linux.vnet.ibm.com>]

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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