netdev - Re: mlx4 2.6.31-rc5: SW2HW

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Message-ID: <alpine.DEB.1.10.0908191557260.19909@gentwo.org>
Date:	Wed, 19 Aug 2009 15:58:37 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Roland Dreier <rdreier@...co.com>
cc:	netdev@...r.kernel.org, Yevgeny Petrilin <yevgenyp@...lanox.co.il>
Subject: Re: mlx4 2.6.31-rc5: SW2HW_EQ failed.

On Wed, 19 Aug 2009, Roland Dreier wrote:

>
>  > System hangs when unloading the mlx4 driver f.e.
>
> I guess that means things work for a while if you get to the point of
> unloading?  Or do you still get an error on load?  Any way to get a
> trace or anything?

It hung on unload. Playing around with BIOS configs now. Seems that C
states were disabled so we also had some ACPI issues.

> BTW, are you using mlx4_en or mlx4_ib?

mlx4_ib.

> I'll try to reproduce here by booting with "possible_cpus=32" and see
> what happens...

Thanks.

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