Return-path: Received: from mail-yw0-f46.google.com ([209.85.213.46]:36087 "EHLO mail-yw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752065Ab2EUHa6 (ORCPT ); Mon, 21 May 2012 03:30:58 -0400 Received: by yhmm54 with SMTP id m54so4107383yhm.19 for ; Mon, 21 May 2012 00:30:58 -0700 (PDT) Message-ID: <4FB9EF2E.3000900@opensuse.org> (sfid-20120521_093102_888035_B222ADB8) Date: Mon, 21 May 2012 03:30:54 -0400 From: =?ISO-8859-1?Q?Cristian_Rodr=EDguez?= MIME-Version: 1.0 To: Emmanuel Grumbach CC: linux-wireless@vger.kernel.org Subject: Re: iwlwifi: Driver unmaps unmatched page at PFN ffe70000 References: <4FB7F52D.7020904@opensuse.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 21/05/12 01:12, Emmanuel Grumbach wrote: > On Sat, May 19, 2012 at 10:31 PM, Cristian Rodr?guez > 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 Hi: Ok, I applied that patch to this kernel with an slight modification (there are no txq->entries but txq->skbs on this version) the system works, however trying to reproduce this problem again might not be so easy, according to my logs, this warning has happened only 4 times in 5 months..