linux-kernel - Re: ath5k misbehaving affecting other kernel parts unrelated?

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Message-ID: <v2p55a4f86e1004230943j6b312cacpca585c80096375ea@mail.gmail.com>
Date:	Fri, 23 Apr 2010 09:43:59 -0700
From:	Maciej Żenczykowski <zenczykowski@...il.com>
To:	me@...copeland.com
Cc:	"John W. Linville" <linville@...driver.com>,
	Pedro Francisco <pedrogfrancisco@...il.com>,
	linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
	mickflemm@...il.com
Subject: Re: ath5k misbehaving affecting other kernel parts unrelated?

Do you have more than ~2.5-3.5GB of ram (enough to make some ram
non-32-bit-DMA-accessible) with swiotlb enabled,
if such are you seeing "DMA: Out of SW-IOMMU space" kernel messages?

On Fri, Apr 23, 2010 at 09:37,  <me@...copeland.com> wrote:
> On Fri, Apr 23, 2010 at 09:48:23AM -0400, John W. Linville wrote:
>> > a) is it "normal"? I thought modules were somewhat isolated these days.
>> > b) any advices for debugging? I've yet to have two oopses that are similar....
>
> Advice for debugging: turn on slub/slab debug options, and possibly
> kmemcheck.  kmemcheck was very helpful for me last time I had such
> a corruption issue.
>
> --
> Bob Copeland %% www.bobcopeland.com
>
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