Re: [PATCH 0/3] Reduce impact to overall system of SLUB using high-order allocations

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On 5/12/11 1:34 AM, James Bottomley wrote:
On Wed, 2011-05-11 at 15:28 -0700, David Rientjes wrote:
On Wed, 11 May 2011, James Bottomley wrote:

OK, I confirm that I can't seem to break this one.  No hangs visible,
even when loading up the system with firefox, evolution, the usual
massive untar, X and even a distribution upgrade.

You can add my tested-by

Your system still hangs with patches 1 and 2 only?
Yes, but only once in all the testing.  With patches 1 and 2 the hang is
much harder to reproduce, but it still seems to be present if I hit it
hard enough.

Patches 1-2 look reasonable to me. I'm not completely convinced of patch 3, though. Why are we seeing these problems now? This has been in mainline for a long time already. Shouldn't we fix kswapd?

                        Pekka

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