Re: 2.6.8.1 mempool subsystem sickness

From: Jens Axboe
Date: Thu Sep 16 2004 - 01:05:11 EST


On Thu, Sep 16 2004, Nick Piggin wrote:
> Jeff V. Merkey wrote:
> >Jeff
> >
> >Here's the stats from the test of the patch against 2.6.8-rc2 with the
> >patch applied
> >
> >
>
> Scanning stats look good at a quick glance. kswapd doesn't seem to be
> going crazy.
>
> However,
> size-65536 32834 32834 65536 1 16
>
> This slab entry is taking up about 2GB of unreclaimable memory (order-4,
> no less). This must be a leak... does the number continue to rise as
> your system runs?

There's also a huge amount of 16-page bio + vecs in flight:

biovec-16 131340

That would point to a leak as well, most likely.

--
Jens Axboe

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