linux-kernel - Re: 3.0.1: pagevec_lookup+0x1d/0x30, SLAB issues?

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Message-ID: <alpine.DEB.2.02.1109140901560.2082@p34.internal.lan>
Date:	Wed, 14 Sep 2011 09:10:17 -0400 (EDT)
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
cc:	Lin Ming <mlin@...pku.edu.cn>, linux-kernel@...r.kernel.org,
	Alan Piszcz <ap@...arrain.com>,
	"Li, Shaohua" <shaohua.li@...el.com>,
	Andrew Morton <akpm@...gle.com>
Subject: Re: 3.0.1: pagevec_lookup+0x1d/0x30, SLAB issues?



On Wed, 14 Sep 2011, Justin Piszcz wrote:

>
>
> On Wed, 14 Sep 2011, Eric Dumazet wrote:
>
> Hi,
>
> Thanks-- patch applied and booted to the new kernel, so just so everyone 
> knows, I am running three patches atop of 3.1-rc4:
>
> (for the igb problem/memory allocation issue)
> 0001-Fix-pointer-dereference-before-call-to-pcie_bus_conf.patch
> 0002-PCI-Remove-MRRS-modification-from-MPS-setting-code.patch
>
> (for the RCU/memory errors)
> 0003-filemap.patch
>
> I will try to perform more load tests on the NIC and CPU/MEM/I+O and see
> if any of my problems return!
>
> Justin.

Hi,

Been running a lot of stressful jobs and will let them continue, so far,
no ERROR, WARN or OOPS yet.

3.1-rc4 + the three patches above seem to fix the problems (thus far).

Does anyone know when the bugs were introduced into the kernel, as some/all
of these problems also happened with 3.0.x.

Justin.

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