From: Walt Holman <walt@holmansrus.com>
To: Krzysztof Halasa <khc@pm.waw.pl>
Cc: David Miller <davem@davemloft.net>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: Strange network timeouts w/ 2.6.30.5
Date: Fri, 21 Aug 2009 10:45:04 -0500 (CDT) [thread overview]
Message-ID: <987943678.21250869504786.JavaMail.root@mail.holmansrus.com> (raw)
In-Reply-To: <1489093361.01250869377567.JavaMail.root@mail.holmansrus.com>
----- "Krzysztof Halasa" <khc@pm.waw.pl> wrote:
> Walt Holman <walt@holmansrus.com> writes:
>
> > Would something like passing a mem=xx cmdline on x86_64 be
> sufficient to test this?
>
> I think so, though I admit I don't remember using this personally
> since
> the introduction of e820 RAM mapping support.
> Dmesg will show if the memory is limited. For the swiotlb to
> effectively
> disable no RAM > 0x100000000 may be used.
>
> But this test isn't IMHO terribly important at this point - the
> driver
> makes invalid use of the DMA API and it has to change. The test could
> only explain _how_ exactly does it fail, we already know _why_ it
> does.
> --
> Krzysztof Halasa
Just got a chance to test this for confirmation. When limiting the RAM to 2GB, the patched driver appears to work OK.
-Walt
next parent reply other threads:[~2009-08-21 15:54 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1489093361.01250869377567.JavaMail.root@mail.holmansrus.com>
2009-08-21 15:45 ` Walt Holman [this message]
2009-08-22 20:26 ` Strange network timeouts w/ 2.6.30.5 Krzysztof Halasa
[not found] <1359163732.51250769223038.JavaMail.root@mail.holmansrus.com>
2009-08-20 11:54 ` Walt Holman
2009-08-20 13:45 ` Krzysztof Halasa
2009-08-20 19:28 ` David Miller
2009-08-20 20:28 ` Krzysztof Halasa
2009-08-20 22:21 ` Walt Holman
2009-08-21 9:44 ` Krzysztof Halasa
2009-08-23 19:18 ` Aviv Greenberg
2009-08-23 20:02 ` Krzysztof Halasa
[not found] <1762204735.01250727555803.JavaMail.root@mail.holmansrus.com>
2009-08-20 0:21 ` Walt Holman
2009-08-20 4:17 ` David Miller
2009-08-20 9:03 ` Krzysztof Halasa
2009-08-20 9:13 ` David Miller
2009-08-20 9:22 ` Krzysztof Halasa
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