From: Stanislaw Gruszka <sgruszka@redhat.com>
To: "Tomáš Janoušek" <tomi@nomi.cz>
Cc: linux-kernel@vger.kernel.org, Wey-Yi Guy <wey-yi.w.guy@intel.com>,
linux-wireless@vger.kernel.org
Subject: Re: iwlagn: memory corruption with WPA enterprise
Date: Mon, 14 Nov 2011 15:07:15 +0100 [thread overview]
Message-ID: <20111114140714.GD2513@redhat.com> (raw)
In-Reply-To: <20111111150105.GA25437@nomi.cz>
Hi,
On Fri, Nov 11, 2011 at 04:01:05PM +0100, Tomáš Janoušek wrote:
> Could you please elaborate on that thing with enabling IOMMU? The only thing I
> know about IOMMU is that it is somehow related to VT-d (passing whole PCI
> devices to virtual guests), and that I have to pass intel_iommu=off to kernel
> command line, otherwise the machine doesn't even boot. Is that a problem?
Yes. That mean iommu software or hardware is broken on your system.
I have no other ideas how to track this down. I think now, this is
a firwmare issue. BTW, you suspected that from very beginning :-)
This could be also a driver issue, but AFAICT programing DMA do not
differ on 6205 from other devices, so bug in firmware is much more
probable reason of corruption.
Stanislaw
next prev parent reply other threads:[~2011-11-14 14:05 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-29 17:15 iwlagn: memory corruption with WPA enterprise Tomáš Janoušek
2011-10-31 16:03 ` Stanislaw Gruszka
2011-11-09 15:54 ` Tomáš Janoušek
2011-11-09 15:59 ` wwguy
2011-11-09 16:51 ` Stanislaw Gruszka
2011-11-10 9:18 ` Tomáš Janoušek
2011-11-10 11:47 ` Stanislaw Gruszka
2011-11-10 12:53 ` Tomáš Janoušek
2011-11-10 16:07 ` Stanislaw Gruszka
2011-11-10 15:24 ` Guy, Wey-Yi
2011-11-10 16:42 ` Tomáš Janoušek
2011-11-10 17:02 ` Larry Finger
2011-11-10 16:30 ` Tomáš Janoušek
2011-11-11 5:47 ` Stanislaw Gruszka
2011-11-11 15:01 ` Tomáš Janoušek
2011-11-14 14:07 ` Stanislaw Gruszka [this message]
2011-11-19 18:11 ` Tomáš Janoušek
2011-11-20 2:13 ` wwguy
2011-11-20 3:20 ` Tomáš Janoušek
2011-11-20 4:28 ` wwguy
2011-11-20 20:40 ` Tomáš Janoušek
2012-02-10 18:09 ` Tomáš Janoušek
2012-02-13 9:25 ` Stanislaw Gruszka
2012-02-13 13:09 ` Stanislaw Gruszka
2012-02-13 13:29 ` Tomáš Janoušek
2012-02-14 9:20 ` Stanislaw Gruszka
2012-03-05 14:01 ` Tomáš Janoušek
2012-03-05 14:57 ` Stanislaw Gruszka
2012-03-05 15:00 ` Tomáš Janoušek
2012-03-05 15:11 ` Stanislaw Gruszka
2012-03-05 15:18 ` Tomáš Janoušek
2011-11-21 13:05 ` Stanislaw Gruszka
2011-11-21 13:09 ` Tomáš Janoušek
2011-11-21 13:40 ` Stanislaw Gruszka
2011-11-21 14:32 ` Tomáš Janoušek
2011-11-10 19:31 ` Adrian Chadd
2011-11-11 5:44 ` Stanislaw Gruszka
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