From: Johannes Berg <johannes@sipsolutions.net>
To: wwguy <wey-yi.w.guy@intel.com>
Cc: Kalle Valo <kvalo@adurom.com>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Re: iwlagn: crash when unloading the module
Date: Tue, 03 May 2011 17:07:12 +0200 [thread overview]
Message-ID: <1304435232.3720.6.camel@jlt3.sipsolutions.net> (raw)
In-Reply-To: <1304433727.5744.107.camel@wwguy-ubuntu> (sfid-20110503_164512_782430_D6ED552C)
On Tue, 2011-05-03 at 07:42 -0700, wwguy wrote:
> > http://www.adurom.com/~kvalo/tmp/iwlagn/rmmod-iommu-crash/1.png
> > http://www.adurom.com/~kvalo/tmp/iwlagn/rmmod-iommu-crash/2.png
> >
> > This is a new laptop and most likely I haven't removed iwlagn module
> > before. So this shouldn't be a regression.
> >
>
> it is new to me as well, I never see that happen on my system. Could you
> share some more information with me? such as laptop model, kernel
> version, 32 or 64 bits.
>
> Also is there any activity while you unload the iwlagn, is it in connect
> state or not?
Dave looked at this and it turned out to most likely be a bug in the
intel-iommu code. A tentative patch to fix it from him is here:
http://david.woodhou.se/double-unmap-check.patch
johannes
next prev parent reply other threads:[~2011-05-03 15:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-03 10:20 iwlagn: crash when unloading the module Kalle Valo
2011-05-03 14:42 ` wwguy
2011-05-03 15:07 ` Johannes Berg [this message]
2011-05-03 15:07 ` Johannes Berg
2011-05-07 5:40 ` Kalle Valo
2011-05-06 4:11 ` Kalle Valo
2011-05-04 13:26 ` Stanislaw Gruszka
2011-05-07 5:42 ` Kalle Valo
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