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Date: Mon, 21 May 2012 08:12:08 +0300
Message-ID: <CANUX_P3_LMpXaBXYVwfB+UiqwZeAhZ+1ErLtgXO3ejCMaCtHLw@mail.gmail.com> (sfid-20120521_071214_349346_DA12F7F1)
Subject: Re: iwlwifi: Driver unmaps unmatched page at PFN ffe70000
From: Emmanuel Grumbach <egrumbach@gmail.com>
To: =?ISO-8859-1?Q?Cristian_Rodr=EDguez?= <crrodriguez@opensuse.org>
Cc: linux-wireless@vger.kernel.org
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Sender: linux-wireless-owner@vger.kernel.org

On Sat, May 19, 2012 at 10:31 PM, Cristian Rodr?guez
<crrodriguez@opensuse.org> wrote:
>
> On resume, I get the following warning
>
> [43265.744510] ------------[ cut here ]------------
> [43265.744516] WARNING: at
> /usr/src/linux-3.4.0-rc7-2/drivers/iommu/intel-iommu.c:2922
> intel_unmap_page+0x15d/0x1c0()
> [43265.744518] Hardware name: Dell System XPS 15Z
> [43265.744519] Driver unmaps unmatched page at PFN ffe70000
> [43265.744520] Modules linked in: fuse rfcomm af_packet bnep arc4 iwlwifi
> btusb bluetooth mac80211 snd_hda_codec_hdmi snd_hda_codec_realtek
> dell_laptop dcdbas kvm_intel snd_hda_intel snd_hda_codec kvm cfg80211
> snd_hwdep uvcvideo snd_pcm snd_timer videobuf2_core snd videodev sr_mod
> mei(C) edd sg cdrom soundcore videobuf2_vmalloc coretemp rfkill dell_wmi
> iTCO_wdt i2c_i801 videobuf2_memops microcode snd_page_alloc sparse_keymap
> battery pcspkr ac iTCO_vendor_support autofs4 sha256_generic dm_crypt dm_mod
> linear btrfs zlib_deflate libcrc32c nouveau ttm mxm_wmi ghash_clmulni_intel
> crc32c_intel i915 wmi drm_kms_helper drm i2c_algo_bit xhci_hcd button video
> aesni_intel cryptd aes_x86_64 fan thermal processor thermal_sys
> [43265.744560] Pid: 2378, comm: NetworkManager Tainted: G ? ? ? ? C
> 3.4.0-rc7-2-desktop-test #1

Can you please give a try to this one ?

http://www.spinics.net/lists/linux-wireless/msg90507.html