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From: Stephen Hemminger <shemminger@osdl.org>
To: linux-kernel@vger.kernel.org
Subject: Re: 2.6.19.2 sky2/acpi crashes
Date: Wed, 24 Jan 2007 09:44:08 -0800	[thread overview]
Message-ID: <20070124094408.600fd4e0@freekitty> (raw)
In-Reply-To: <1169542768.5537.11.camel@cocoduo>

On Tue, 23 Jan 2007 09:59:28 +0100
Lionel Landwerlin <landwer@free.fr> wrote:

> Hi,
> 
> I'm running a macbook with a Marvell ethernet controller, and I have a
> lots of freezes when using the ethernet controller under a load of
> ~100K/s. Since I'm running a 2.6.19.2 kernel, I'm able to get some
> report from the kernel. Here they are :

Please send sky2 bugs to me <shemminger@linux-foundation.org> and 
netdev@vger.kernel.org.

> I hope some fix could be released soon.

I get problem reports all the time, unfortunately, so far these have
not been reproducible on the configurations and hardware I have. I am
not denying there is a problem, but if I can't reproduce it, it takes
a long time to fix.

Your problem seems to be missed/lost interrupts. If you display
the contents of /proc/interrupts (ie cat /proc/interrupts), it
will show whether level (good), edge (bad) or MSI (good if hw works)
are being used.

Some workaround related things to try are:

1) Adding the module parameter "idle_timeout=10" will cause
the driver to poll for status every 10ms. This is obviously a performance
overhead but it can allow system to function.

2) Disabling MSI with either "pci=nomsi" on boot cmdline or by using
module parameter "disable_msi=1".  Message Signaled Interrupts are good,
but it seems some chipsets don't work right.


-- 
Stephen Hemminger <shemminger@linux-foundation.org>

      parent reply	other threads:[~2007-01-24 17:47 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-23  8:59 Lionel Landwerlin
2007-01-23  9:22 ` Luming Yu
2007-01-23 12:27   ` Lionel Landwerlin
2007-01-23 21:30     ` Len Brown
2007-01-24  0:45       ` Lionel Landwerlin
2007-01-24  1:39         ` Luming Yu
2007-01-24  2:36           ` Len Brown
2007-01-24 12:23             ` Lionel Landwerlin
2007-01-24 19:51               ` Len Brown
2007-01-23 10:17 ` Soeren Sonnenburg
2007-01-23 11:12   ` Andrew Lyon
2007-01-24 13:02 ` Soeren Sonnenburg
2007-01-24 13:04 ` Soeren Sonnenburg
2007-01-24 17:44 ` Stephen Hemminger [this message]

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