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
[43265.744562] Call Trace:
[43265.744571] [<ffffffff81004648>] dump_trace+0x88/0x300
[43265.744575] [<ffffffff8158043b>] dump_stack+0x69/0x6f
[43265.744579] [<ffffffff8103fdc9>] warn_slowpath_common+0x79/0xc0
[43265.744582] [<ffffffff8103fec5>] warn_slowpath_fmt+0x45/0x50
[43265.744585] [<ffffffff8147921d>] intel_unmap_page+0x15d/0x1c0
[43265.744596] [<ffffffffa06bd2f4>]
iwl_trans_rxq_free_rx_bufs+0x44/0xf0 [iwlwifi]
[43265.744629] [<ffffffffa06bf258>]
iwl_trans_pcie_start_fw+0x158/0x1020 [iwlwifi]
[43265.744652] [<ffffffffa06a5813>]
iwl_load_ucode_wait_alive+0x83/0x360 [iwlwifi]
[43265.744662] [<ffffffffa06a3dca>] iwlagn_mac_start+0x13a/0x240 [iwlwifi]
[43265.744676] [<ffffffffa05b6dbd>] ieee80211_do_open+0x24d/0xc40
[mac80211]
[43265.744690] [<ffffffff81497226>] __dev_open+0x96/0xf0
[43265.744694] [<ffffffff814974ba>] __dev_change_flags+0x9a/0x180
[43265.744697] [<ffffffff81497650>] dev_change_flags+0x20/0x70
[43265.744700] [<ffffffff814a2c79>] do_setlink+0x319/0x990
[43265.744704] [<ffffffff814a3386>] rtnl_setlink+0x96/0xf0
[43265.744706] [<ffffffff814a456c>] rtnetlink_rcv_msg+0x10c/0x310
[43265.744709] [<ffffffff814bdd19>] netlink_rcv_skb+0xa9/0xc0
[43265.744712] [<ffffffff814a2218>] rtnetlink_rcv+0x18/0x20
[43265.744715] [<ffffffff814bd6a0>] netlink_unicast+0x1a0/0x1f0
[43265.744719] [<ffffffff814bd9cf>] netlink_sendmsg+0x2df/0x360
[43265.744723] [<ffffffff8147ded6>] sock_sendmsg+0x106/0x150
[43265.744726] [<ffffffff8147f70e>] __sys_sendmsg+0x37e/0x390
[43265.744729] [<ffffffff814815a4>] sys_sendmsg+0x44/0x80
[43265.744732] [<ffffffff8159313d>] system_call_fastpath+0x1a/0x1f
[43265.744737] [<00007f8bb51e97cd>] 0x7f8bb51e97cc
[43265.744739] ---[ end trace a3c6e6a98003726c ]---
Will be cool if someone can take a look at this ;)
(plz cc me your replies)
On Sat, May 19, 2012 at 10:31 PM, Cristian Rodr?guez
<[email protected]> 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
On 21/05/12 01:12, Emmanuel Grumbach wrote:
> On Sat, May 19, 2012 at 10:31 PM, Cristian Rodr?guez
> <[email protected]> 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..
>>
>> On Sat, May 19, 2012 at 10:31 PM, Cristian Rodr?guez
>> <[email protected]> ?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..
>
>
if it is not easy to reproduce, then I would recommend to wait until
the patch gets merged so that you can get it cleanly without
modification.