One more tidbit, I was running 'iw event' (instead of 'iwevent'), and got:

2011-07-14 20:38 [root@******** miforbes]# iw event
wlan0 (phy #0): deauth a0:88:b4:68:59:e4 -> 16:18:0a:30:23:5c reason 4: 
Disassociated due to inactivity
wlan0 (phy #0): disconnected (local request)
phy #0: regulatory domain change: set to world roaming by the wireless core 
upon initialization request
regulatory domain change: set to US by a user request

so there is some "inactivity", but I'm browsing the web normally ...

-Michael

On Thu, 14 Jul 2011, Michael Forbes wrote:

Package: linux-2.6
Version: 2.6.39-2
Severity: important
File: /lib/modules/2.6.39-2-amd64/kernel/net/wireless/cfg80211.ko
Tags: upstream


I have a Lenovo Thinkpad T420, with "Intel(R) Centrino(R) Advanced-N 6205 AGN"
wireless card.  wheezy is installed.  I sometimes connect to one of two
different wireless networks, both unsecured (I configure the wireless through
/etc/network/interfaces).  In both instances, the connection will drop several
times per day, without any provocation.  Another wheezy install on different
hardware had no such problems.  I imagine the issue is with the wireless card,
as that seems to be the most relevant hardware difference between the new laptop
and the old laptop.

The network interrupts are strange, in that they leave essentially no
trace in 'dmesg'.  Things do register via 'iwevent':

2011-07-13 22:08 [root@******* miforbes]# iwevent
Waiting for Wireless Events from interfaces...
23:27:39.200445   wlan0    New Access Point/Cell address:Not-Associated

after this event `iwconfig' shows no essid associated with wlan0:

2011-07-14 20:23 [~]$ /sbin/iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11abg  ESSID:off/any
         Mode:Managed  Access Point: Not-Associated   Tx-Power=15 dBm
         Retry  long limit:7   RTS thr:off   Fragment thr:off
         Power Management:off

The "normal" output of 'iwconfig' is:

2011-07-14 20:44 [root@********* miforbes]# iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11abg  ESSID:"********"
         Mode:Managed  Frequency:2.412 GHz  Access Point: **************
         Bit Rate=48 Mb/s   Tx-Power=15 dBm
         Retry  long limit:7   RTS thr:off   Fragment thr:off
         Encryption key:off
         Power Management:off
         Link Quality=43/70  Signal level=-67 dBm
         Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
         Tx excessive retries:0  Invalid misc:61   Missed beacon:0

so it seems like the signal strength is decent.

Restoring the essid with 'iwconfig wlan0 essid ******' fixes the
problem, no need to even restart dhcp.  Interestingly, the last thing that
appears in dmesg before the disconnect is always

[ 1280.279761] cfg80211: Calling CRDA to update world regulatory domain
[ 1280.287981] cfg80211: World regulatory domain updated:
[ 1280.287989] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[ 1280.287997] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288005] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288011] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288017] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288024] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288047] cfg80211: Calling CRDA for country: US
[ 1280.296588] cfg80211: Regulatory domain changed to country: US
[ 1280.296596] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[ 1280.296604] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2700 mBm)
[ 1280.296611] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
1700 mBm)
[ 1280.296618] cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.296624] cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.296630] cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.296636] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
3000 mBm)

(the below dmesg output has this happen twice, note the afs server
losing internet access).

Various searches indicate to me that cfg80211 is reseting the
connection, and that this is causing the problem.  However, I cannot
identify why it is being called.

I have tried several things to fix this.  I've tried the options:

options iwlagn 11n_disable=1 11n_disable50=1

as well as

options iwlagn swcrypto50=1 swcrypto=1

and

options cfg80211 ieee80211_regdom=US

in modprobe.d conf files (currently these are all enabled).  Initially crda was 
not even installed, and I
took this as the reason the wireless was failing, that is the dmesg just
showed:

[12626.267794] cfg80211: Calling CRDA to update world regulatory domain
[12758.689580] afs: Lost contact with file server 18.9.60.13 in cell 
athena.mit.edu (all multi-homed ip addresses down for the server)
[12758.689590] afs: Lost contact with file server 18.9.60.13 in cell 
athena.mit.edu (all multi-homed ip addresses down for the server)

without crda actually being run.  So I installed
crda.deb and iw.deb from the repository, but this only produced more verbose 
output in dmesg
with regards to what crda was doing.

I have also upgraded my firmware from the version in wheezy, to the latest
version from the firmware homepage http://intellinuxwireless.org/.

The disconnects seem to happen during network inactivity as well as
activity (including leaving a ping running).

I thought at one point it might be some sort of power management issue, but this
doesn't seem to make sense given the reliable connection to cfg80211, which I
don't think has a connection to power management.

It seems likely (but I haven't tried) that a network configuration daemon 
(networkmanager,wicd) could
solve this problem by reconnecting on each disconnect, but this seems to only
mask the issue.

I've had a remarkable lack of success in finding similar bugs, and am not
entirely sure that cfg80211 is actually the problem.  However the following
URL's seem vaguely similar to my problem:

http://www.linuxforums.org/forum/slackware-linux/171903-avoid-calling-crda.html
http://osdir.com/ml/debian-kernel/2011-05/msg00480.html
http://www.devheads.net/linux/fedora/user/how-can-i-stop-network-scan-cfg80211.htm

Any help would really be appreciated.

-Michael
mifor...@mit.edu

-- Package-specific info:
** Version:
Linux version 2.6.39-2-amd64 (Debian 2.6.39-2) (b...@decadent.org.uk) (gcc 
version 4.4.6 (Debian 4.4.6-3) ) #1 SMP Wed Jun 8 11:01:04 UTC 2011

** Command line:
BOOT_IMAGE=/vmlinuz-2.6.39-2-amd64 root=/dev/mapper/vg0-lv0 ro quiet

** Tainted: PO (4097)
* Proprietary module has been loaded.
* Out-of-tree module has been loaded.

** Kernel log:
[   10.797325] i915 0000:00:02.0: power state changed by ACPI to D0
[   10.797330] i915 0000:00:02.0: power state changed by ACPI to D0
[   10.797335] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   10.797338] i915 0000:00:02.0: setting latency timer to 64
[   10.810797] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 
in-tree:
[   10.810800] iwlagn: Copyright(c) 2003-2010 Intel Corporation
[   10.810895] iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[   10.810905] iwlagn 0000:03:00.0: setting latency timer to 64
[   10.810948] iwlagn 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 
6205 AGN, REV=0xB0
[   10.821599] iwlagn 0000:03:00.0: device EEPROM VER=0x715, CALIB=0x6
[   10.821601] iwlagn 0000:03:00.0: Device SKU: 0Xb
[   10.821602] iwlagn 0000:03:00.0: Valid Tx ant: 0X3, Valid Rx ant: 0X3
[   10.821640] iwlagn 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a 
channels
[   10.821736] iwlagn 0000:03:00.0: irq 46 for MSI/MSI-X
[   10.825203] i915 0000:00:02.0: irq 47 for MSI/MSI-X
[   10.825209] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[   10.825211] [drm] Driver supports precise vblank timestamp query.
[   10.832932] usbcore: registered new interface driver usbserial
[   10.833066] USB Serial support registered for generic
[   10.833081] usbcore: registered new interface driver usbserial_generic
[   10.833083] usbserial: USB Serial Driver core
[   10.853725] [drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed
[   10.962357] USB Serial support registered for GSM modem (1-port)
[   10.962378] usbcore: registered new interface driver option
[   10.962380] option: v0.7.2:USB Driver for GSM modems
[   11.008914] vgaarb: device changed decodes: 
PCI:0000:00:02.0,olddecodes=io+mem,decodes=none:owns=io+mem
[   11.008918] vgaarb: transferring owner from PCI:0000:00:02.0 to 
PCI:0000:01:00.0
[   11.025234] Synaptics Touchpad, model: 1, fw: 7.2, id: 0x1c0b1, caps: 
0xd047b3/0xb40000/0xa0000
[   11.025251] serio: Synaptics pass-through port at isa0060/serio1/input0
[   11.061364] fbcon: inteldrmfb (fb0) is primary device
[   11.074747] input: SynPS/2 Synaptics TouchPad as 
/devices/platform/i8042/serio1/input/input5
[   11.076636] usb 1-1: new high speed USB device number 2 using ehci_hcd
[   11.090472] thinkpad_acpi: ThinkPad ACPI Extras v0.24
[   11.090474] thinkpad_acpi: http://ibm-acpi.sf.net/
[   11.090475] thinkpad_acpi: ThinkPad BIOS 83ET57WW (1.27 ), EC unknown
[   11.090476] thinkpad_acpi: Lenovo ThinkPad T420, model 4177CTO
[   11.090806] thinkpad_acpi: detected a 8-level brightness capable ThinkPad
[   11.090928] thinkpad_acpi: radio switch found; radios are enabled
[   11.093207] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is 
unblocked
[   11.093547] Registered led device: tpacpi::thinklight
[   11.093589] Registered led device: tpacpi::power
[   11.093627] Registered led device: tpacpi::standby
[   11.093651] Registered led device: tpacpi::thinkvantage
[   11.093717] thinkpad_acpi: Standard ACPI backlight interface available, not 
loading native one.
[   11.093813] thinkpad_acpi: Console audio control enabled, mode: monitor 
(read only)
[   11.094763] input: ThinkPad Extra Buttons as 
/devices/platform/thinkpad_acpi/input/input6
[   11.136617] firewire_core: created device fw0: GUID 0021cc200604cf76, S400
[   11.184246] iwlagn 0000:03:00.0: loaded firmware version 17.168.5.3 build 
42301
[   11.184678] Registered led device: phy0-led
[   11.213003] usb 1-1: New USB device found, idVendor=8087, idProduct=0024
[   11.213005] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   11.213258] hub 1-1:1.0: USB hub found
[   11.213348] hub 1-1:1.0: 6 ports detected
[   11.234146] Console: switching to colour frame buffer device 200x56
[   11.237099] fb0: inteldrmfb frame buffer device
[   11.237100] drm: registered panic notifier
[   11.258057] acpi device:01: registered as cooling_device4
[   11.258165] input: Video Bus as 
/devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input7
[   11.258215] ACPI: Video Device [VID] (multi-head: yes  rom: no  post: no)
[   11.259976] acpi device:0b: registered as cooling_device5
[   11.260139] input: Video Bus as 
/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:0a/LNXVIDEO:01/input/input8
[   11.260185] ACPI: Video Device [VID1] (multi-head: yes  rom: yes  post: no)
[   11.260318] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[   11.260674] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 
22
[   11.260737] HDA Intel 0000:00:1b.0: irq 48 for MSI/MSI-X
[   11.260766] HDA Intel 0000:00:1b.0: setting latency timer to 64
[   11.314561] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[   11.324321] usb 2-1: new high speed USB device number 2 using ehci_hcd
[   11.325853] input: HDA Digital PCBeep as 
/devices/pci0000:00/0000:00:1b.0/input/input9
[   11.456569] usb 2-1: New USB device found, idVendor=8087, idProduct=0024
[   11.456579] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   11.456808] hub 2-1:1.0: USB hub found
[   11.456878] hub 2-1:1.0: 8 ports detected
[   11.528168] usb 1-1.4: new full speed USB device number 3 using ehci_hcd
[   11.628974] usb 1-1.4: New USB device found, idVendor=0a5c, idProduct=217f
[   11.628984] usb 1-1.4: New USB device strings: Mfr=1, Product=2, 
SerialNumber=3
[   11.628989] usb 1-1.4: Product: Broadcom Bluetooth Device
[   11.628994] usb 1-1.4: Manufacturer: Broadcom Corp
[   11.628998] usb 1-1.4: SerialNumber: EC55F9F020A9
[   11.700014] usb 1-1.6: new high speed USB device number 4 using ehci_hcd
[   11.798074] usb 1-1.6: New USB device found, idVendor=04f2, idProduct=b221
[   11.798084] usb 1-1.6: New USB device strings: Mfr=1, Product=2, 
SerialNumber=0
[   11.798090] usb 1-1.6: Product: Integrated Camera
[   11.798094] usb 1-1.6: Manufacturer: Chicony Electronics Co., Ltd.
[   11.872744] Linux media interface: v0.10
[   11.890290] Linux video capture interface: v2.00
[   11.894359] uvcvideo: Found UVC 1.00 device Integrated Camera (04f2:b221)
[   11.896091] input: Integrated Camera as 
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input10
[   11.896149] usbcore: registered new interface driver uvcvideo
[   11.896151] USB Video Class driver (v1.0.0)
[   11.936280] Bluetooth: Core ver 2.16
[   11.936304] NET: Registered protocol family 31
[   11.936305] Bluetooth: HCI device and connection manager initialized
[   11.936308] Bluetooth: HCI socket layer initialized
[   11.936310] Bluetooth: L2CAP socket layer initialized
[   11.936342] Bluetooth: SCO socket layer initialized
[   11.947642] Bluetooth: Generic Bluetooth USB driver ver 0.6
[   11.947801] usbcore: registered new interface driver btusb
[   12.016245] cfg80211: World regulatory domain updated:
[   12.016248] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[   12.016251] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[   12.016253] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 
2000 mBm)
[   12.016254] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 
2000 mBm)
[   12.016256] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[   12.016258] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[   12.016404] cfg80211: Calling CRDA for country: US
[   12.019046] cfg80211: Regulatory domain changed to country: US
[   12.019048] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[   12.019051] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2700 mBm)
[   12.019053] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
1700 mBm)
[   12.019055] cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[   12.019057] cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[   12.019058] cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[   12.019060] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
3000 mBm)
[   13.293481] EXT4-fs (dm-1): re-mounted. Opts: (null)
[   13.470535] EXT4-fs (dm-1): re-mounted. Opts: errors=remount-ro
[   13.601417] loop: module loaded
[   14.135619] Adding 7811068k swap on /dev/mapper/vg0-lv2.  Priority:-1 
extents:1 across:7811068k
[   15.055780] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: 
(null)
[   15.068529] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: 
(null)
[   15.198602] EXT3-fs: barriers not enabled
[   15.203989] kjournald starting.  Commit interval 5 seconds
[   15.204032] EXT3-fs (loop0): warning: maximal mount count reached, running 
e2fsck is recommended
[   15.204408] EXT3-fs (loop0): using internal journal
[   15.204411] EXT3-fs (loop0): recovery complete
[   15.204413] EXT3-fs (loop0): mounted filesystem with ordered data mode
[   15.280129] EXT3-fs: barriers not enabled
[   15.299891] kjournald starting.  Commit interval 5 seconds
[   15.299932] EXT3-fs (loop1): warning: maximal mount count reached, running 
e2fsck is recommended
[   15.300199] EXT3-fs (loop1): using internal journal
[   15.300202] EXT3-fs (loop1): recovery complete
[   15.300205] EXT3-fs (loop1): mounted filesystem with ordered data mode
[   15.355451] EXT3-fs: barriers not enabled
[   15.363980] kjournald starting.  Commit interval 5 seconds
[   15.363991] EXT3-fs (loop2): warning: maximal mount count reached, running 
e2fsck is recommended
[   15.364349] EXT3-fs (loop2): using internal journal
[   15.364351] EXT3-fs (loop2): recovery complete
[   15.364354] EXT3-fs (loop2): mounted filesystem with ordered data mode
[   16.719572] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   17.511021] IBM TrackPoint firmware: 0x0e, buttons: 3/3
[   17.767364] input: TPPS/2 IBM TrackPoint as 
/devices/platform/i8042/serio1/serio2/input/input11
[   96.429069] fuse init (API version 7.16)
[   97.691134] lp: driver loaded but no devices found
[   97.724516] Disabling lock debugging due to kernel taint
[   97.724522] openafs: module license 
'http://www.openafs.org/dl/license10.html' taints kernel.
[   97.837099] input: ACPI Virtual Keyboard Device as 
/devices/virtual/input/input12
[   97.901981] ppdev: user-space parallel port driver
[   98.318111] enabling dynamically allocated vcaches
[   98.318113] Starting AFS cache scan...
[   98.632250] ip_tables: (C) 2000-2006 Netfilter Core Team
[   99.386592] sshd (2098): /proc/2098/oom_adj is deprecated, please use 
/proc/2098/oom_score_adj instead.
[   99.669028] found 607 non-empty cache files (7%).
[  100.054534] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[  100.197009] Bluetooth: RFCOMM TTY layer initialized
[  100.197013] Bluetooth: RFCOMM socket layer initialized
[  100.197014] Bluetooth: RFCOMM ver 1.11
[  100.207523] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[  100.207532] Bluetooth: BNEP filters: protocol multicast
[  103.571707] e1000e 0000:00:19.0: PME# enabled
[  121.985770] EXT4-fs (dm-1): re-mounted. Opts: errors=remount-ro,commit=0
[  122.201202] EXT4-fs (sda5): re-mounted. Opts: commit=0
[  122.469208] EXT4-fs (dm-4): re-mounted. Opts: commit=0
[  146.913978] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  150.147872] wlan0: authenticate with 16:18:0a:30:23:5c (try 1)
[  150.176008] wlan0: authenticated
[  150.176447] wlan0: associate with 16:18:0a:30:23:5c (try 1)
[  150.208221] wlan0: RX AssocResp from 16:18:0a:30:23:5c (capab=0x21 status=0 
aid=3)
[  150.208230] wlan0: associated
[  150.210942] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  150.211200] cfg80211: Calling CRDA for country: US
[  150.219363] cfg80211: Regulatory domain changed to country: US
[  150.219371] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[  150.219380] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2700 mBm)
[  150.219386] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
1700 mBm)
[  150.219392] cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[  150.219398] cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[  150.219405] cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[  150.219411] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
3000 mBm)
[  160.685714] wlan0: no IPv6 routers present
[ 1280.279761] cfg80211: Calling CRDA to update world regulatory domain
[ 1280.287981] cfg80211: World regulatory domain updated:
[ 1280.287989] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[ 1280.287997] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288005] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288011] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288017] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288024] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.288047] cfg80211: Calling CRDA for country: US
[ 1280.296588] cfg80211: Regulatory domain changed to country: US
[ 1280.296596] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[ 1280.296604] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2700 mBm)
[ 1280.296611] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
1700 mBm)
[ 1280.296618] cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.296624] cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.296630] cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1280.296636] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
3000 mBm)
[ 1383.107768] afs: Lost contact with file server 18.9.60.13 in cell 
athena.mit.edu (all multi-homed ip addresses down for the server)
[ 1383.107779] afs: Lost contact with file server 18.9.60.13 in cell 
athena.mit.edu (all multi-homed ip addresses down for the server)
[ 1859.769728] afs: Lost contact with file server 18.9.60.94 in cell 
athena.mit.edu (all multi-homed ip addresses down for the server)
[ 1859.769740] afs: Lost contact with file server 18.9.60.94 in cell 
athena.mit.edu (all multi-homed ip addresses down for the server)
[ 1870.460644] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 1872.212104] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 1872.213996] wlan0: authenticate with 16:18:0a:30:23:5c (try 1)
[ 1872.267404] wlan0: authenticated
[ 1872.269214] wlan0: associate with 16:18:0a:30:23:5c (try 1)
[ 1872.296344] wlan0: RX AssocResp from 16:18:0a:30:23:5c (capab=0x21 status=0 
aid=3)
[ 1872.296353] wlan0: associated
[ 1872.300500] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 1872.300649] cfg80211: Calling CRDA for country: US
[ 1872.308520] cfg80211: Regulatory domain changed to country: US
[ 1872.308527] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[ 1872.308535] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2700 mBm)
[ 1872.308543] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
1700 mBm)
[ 1872.308549] cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1872.308555] cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1872.308561] cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 1872.308567] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
3000 mBm)
[ 1876.882912] afs: Lost contact with file server 18.9.60.97 in cell 
athena.mit.edu (all multi-homed ip addresses down for the server)
[ 1876.882924] afs: Lost contact with file server 18.9.60.97 in cell 
athena.mit.edu (all multi-homed ip addresses down for the server)
[ 1882.902834] wlan0: no IPv6 routers present
[ 1885.469028] afs: file server 18.9.60.97 in cell athena.mit.edu is back up 
(multi-homed address; other same-host interfaces may still be down)
[ 1885.469039] afs: file server 18.9.60.97 in cell athena.mit.edu is back up 
(multi-homed address; other same-host interfaces may still be down)
[ 1885.469049] afs: file server 18.9.60.13 in cell athena.mit.edu is back up 
(multi-homed address; other same-host interfaces may still be down)
[ 1885.469057] afs: file server 18.9.60.13 in cell athena.mit.edu is back up 
(multi-homed address; other same-host interfaces may still be down)
[ 1885.469065] afs: file server 18.9.60.94 in cell athena.mit.edu is back up 
(multi-homed address; other same-host interfaces may still be down)
[ 1885.469072] afs: file server 18.9.60.94 in cell athena.mit.edu is back up 
(multi-homed address; other same-host interfaces may still be down)
[ 1959.091794] ''OUT-internet':'IN= OUT=wlan0 SRC=10.33.3.109 DST=72.47.193.52 
LEN=40 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=59898 DPT=80 WINDOW=0 
RES=0x00 RST URGP=0
[ 6023.006347] cfg80211: Calling CRDA to update world regulatory domain
[ 6023.014480] cfg80211: World regulatory domain updated:
[ 6023.014488] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[ 6023.014496] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 6023.014503] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 
2000 mBm)
[ 6023.014509] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 
2000 mBm)
[ 6023.014515] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 6023.014521] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 6023.014544] cfg80211: Calling CRDA for country: US
[ 6023.022918] cfg80211: Regulatory domain changed to country: US
[ 6023.022926] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[ 6023.022934] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2700 mBm)
[ 6023.022941] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
1700 mBm)
[ 6023.022969] cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 6023.022979] cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 6023.022987] cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 6023.022996] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
3000 mBm)
[ 6148.544135] iwlagn 0000:03:00.0: Error: Response NULL in 'REPLY_ADD_STA'
[ 6148.544150] iwlagn 0000:03:00.0: Adding station ff:ff:ff:ff:ff:ff failed.
[ 6148.545239] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 6149.779715] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 6149.780084] wlan0: authenticate with 16:18:0a:30:23:5c (try 1)
[ 6149.819507] wlan0: authenticated
[ 6149.821014] wlan0: associate with 16:18:0a:30:23:5c (try 1)
[ 6149.837640] wlan0: RX AssocResp from 16:18:0a:30:23:5c (capab=0x21 status=0 
aid=3)
[ 6149.837652] wlan0: associated
[ 6149.840630] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 6149.840794] cfg80211: Calling CRDA for country: US
[ 6149.848763] cfg80211: Regulatory domain changed to country: US
[ 6149.848770] cfg80211:     (start_freq - end_freq @ bandwidth), 
(max_antenna_gain, max_eirp)
[ 6149.848779] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
2700 mBm)
[ 6149.848786] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
1700 mBm)
[ 6149.848792] cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 6149.848798] cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 6149.848804] cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 
2000 mBm)
[ 6149.848810] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
3000 mBm)
[ 6160.097802] wlan0: no IPv6 routers present

** Model information
sys_vendor: LENOVO
product_name: 4177CTO
product_version: ThinkPad T420
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: 83ET57WW (1.27 )
board_vendor: LENOVO
board_name: 4177CTO
board_version: Not Available

** Loaded modules:
Module                  Size  Used by
nf_conntrack_ftp       12572  0
nf_conntrack_irc       12427  0
xt_tcpudp              12527  28
xt_state               12503  35
ipt_LOG                12605  12
xt_limit               12638  14
bnep                   17424  2
rfcomm                 32744  8
nf_conntrack_ipv4      18081  35
nf_conntrack           56001  4 
nf_conntrack_ftp,nf_conntrack_irc,xt_state,nf_conntrack_ipv4
nf_defrag_ipv4         12483  1 nf_conntrack_ipv4
iptable_filter         12536  1
ip_tables              21818  1 iptable_filter
x_tables               18886  6 
xt_tcpudp,xt_state,ipt_LOG,xt_limit,iptable_filter,ip_tables
parport_pc             22191  0
ppdev                  12725  0
openafs               623927  2
lp                     17190  0
parport                31650  3 parport_pc,ppdev,lp
acpi_cpufreq           12849  1
mperf                  12411  1 acpi_cpufreq
cpufreq_conservative    13147  0
cpufreq_userspace      12576  0
cpufreq_stats          12713  0
cpufreq_powersave      12454  0
uinput                 17392  1
fuse                   61554  3
ext3                  112254  3
jbd                    41698  1 ext3
loop                   22479  6
firewire_sbp2          17825  0
btusb                  17417  2
bluetooth             107224  23 bnep,rfcomm,btusb
uvcvideo               57386  0
videodev               66266  1 uvcvideo
media                  18148  1 videodev
v4l2_compat_ioctl32    16575  1 videodev
snd_hda_codec_conexant    40393  1
arc4                   12458  2
ecb                    12737  2
snd_hda_intel          25946  0
joydev                 17138  0
snd_hda_codec          67865  2 snd_hda_codec_conexant,snd_hda_intel
thinkpad_acpi          60656  0
snd_hwdep              13148  1 snd_hda_codec
snd_pcm                67276  2 snd_hda_intel,snd_hda_codec
option                 24802  0
usb_wwan               17206  1 option
snd_seq                44678  0
usbserial              31986  2 option,usb_wwan
snd_timer              22658  2 snd_pcm,snd_seq
iwlagn                174901  0
nouveau               515735  0
i915                  329754  2
ehci_hcd               39487  0
sdhci_pci              13184  0
usbcore               127203  7 
btusb,uvcvideo,option,usb_wwan,usbserial,ehci_hcd
i2c_i801               16870  0
sg                     25769  0
ttm                    52224  1 nouveau
snd_seq_device         13155  1 snd_seq
drm_kms_helper         26950  2 nouveau,i915
snd                    52324  9 
snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,thinkpad_acpi,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_device
mac80211              181270  1 iwlagn
soundcore              13014  1 snd
firewire_ohci          35027  0
cfg80211              126244  2 iwlagn,mac80211
sdhci                  21685  1 sdhci_pci
snd_page_alloc         12969  2 snd_hda_intel,snd_pcm
firewire_core          47790  2 firewire_sbp2,firewire_ohci
drm                   166500  5 nouveau,i915,ttm,drm_kms_helper
sr_mod                 21824  0
e1000e                128034  0
cdrom                  35134  1 sr_mod
i2c_algo_bit           12834  2 nouveau,i915
i2c_core               23766  7 
videodev,nouveau,i915,i2c_i801,drm_kms_helper,drm,i2c_algo_bit
mmc_core               58824  1 sdhci
nvram                  12997  1 thinkpad_acpi
rfkill                 19014  4 bluetooth,thinkpad_acpi,cfg80211
ac                     12624  0
psmouse                55199  0
evdev                  17475  28
serio_raw              12878  0
battery                13109  0
power_supply           13475  3 nouveau,ac,battery
pcspkr                 12579  0
button                 12895  2 nouveau,i915
processor              27431  5 acpi_cpufreq
video                  17553  2 nouveau,i915
wmi                    13202  0
crc_itu_t              12347  1 firewire_core
ext4                  317160  3
mbcache                12930  2 ext3,ext4
jbd2                   65105  1 ext4
crc16                  12343  2 bluetooth,ext4
sha256_generic         16797  2
aes_x86_64             16796  16
aes_generic            37122  1 aes_x86_64
cbc                    12747  8
dm_crypt               22257  1
dm_mod                 62468  14 dm_crypt
sd_mod                 35644  3
crc_t10dif             12348  1 sd_mod
ahci                   25089  2
libahci                22616  1 ahci
libata                151572  2 ahci,libahci
scsi_mod              161557  5 firewire_sbp2,sg,sr_mod,sd_mod,libata
thermal                17330  0
thermal_sys            17939  3 processor,video,thermal

** Network interface configuration:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

#auto eth0
#iface eth0 inet static
#       address  192.168.1.2
#       netmask 255.255.255.0
#       gateway 192.168.1.1

#mapping eth0
#       script ifscheme-mapping

auto wlan0
allow-hotplug wlan0

mapping wlan0
        script ifscheme-mapping

iface wlan0-s inet dhcp
        wireless-essid **********

iface wlan0-sr inet dhcp
        wireless-essid **********

#essid's cleared for privacy

** Network status:
*** IP interfaces and addresses:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
   link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
   inet 127.0.0.1/8 scope host lo
   inet6 ::1/128 scope host
      valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
   link/ether 00:21:cc:5f:7e:d7 brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
   link/ether a0:88:b4:68:59:e4 brd ff:ff:ff:ff:ff:ff
   inet 10.33.3.109/21 brd 10.33.7.255 scope global wlan0
   inet6 fe80::a288:b4ff:fe68:59e4/64 scope link
      valid_lft forever preferred_lft forever

*** Device statistics:
Inter-|   Receive                                                |  Transmit
face |bytes    packets errs drop fifo frame compressed multicast|bytes    
packets errs drop fifo colls carrier compressed
   lo:  213946    1203    0    0    0     0          0         0   213946    
1203    0    0    0     0       0          0
 eth0:       0       0    0    0    0     0          0         0        0       
0    0    0    0     0       0          0
wlan0: 50729748  216624    0    0    0     0          0         0  4837104   
28310    0    0    0     0       0          0

*** Protocol statistics:
Ip:
   169646 total packets received
   2707 with invalid addresses
   0 forwarded
   0 incoming packets discarded
   28020 incoming packets delivered
   30054 requests sent out
   1 outgoing packets dropped
   324 dropped because of missing route
   55 reassemblies required
   25 packets reassembled ok
Icmp:
   1404 ICMP messages received
   0 input ICMP message failed.
   ICMP input histogram:
       destination unreachable: 388
       echo replies: 1016
   1518 ICMP messages sent
   0 ICMP messages failed
   ICMP output histogram:
       destination unreachable: 390
       echo request: 1128
IcmpMsg:
       InType0: 1016
       InType3: 388
       OutType3: 390
       OutType8: 1128
Tcp:
   1337 active connections openings
   0 passive connection openings
   23 failed connection attempts
   74 connection resets received
   24 connections established
   20445 segments received
   21165 segments send out
   312 segments retransmited
   0 bad segments received.
   398 resets sent
Udp:
   5494 packets received
   22 packets to unknown port received.
   0 packet receive errors
   7056 packets sent
UdpLite:
TcpExt:
   696 TCP sockets finished time wait in fast timer
   38 packets rejects in established connections because of timestamp
   827 delayed acks sent
   Quick ack mode was activated 238 times
   491 packets directly queued to recvmsg prequeue.
   481339 bytes directly received in process context from prequeue
   12214 packet headers predicted
   438 packets header predicted and directly queued to user
   2319 acknowledgments not containing data payload received
   321 predicted acknowledgments
   5 congestion windows recovered without slow start by DSACK
   201 congestion windows recovered without slow start after partial ack
   1 timeouts after SACK recovery
   1 timeouts in loss state
   12 retransmits in slow start
   272 other TCP timeouts
   201 DSACKs sent for old packets
   126 DSACKs received
   70 connections reset due to unexpected data
   32 connections reset due to early user close
   TCPDSACKIgnoredOld: 25
   TCPDSACKIgnoredNoUndo: 25
   TCPSpuriousRTOs: 2
IpExt:
   InMcastPkts: 31610
   OutMcastPkts: 184
   InBcastPkts: 76703
   InOctets: 45706267
   OutOctets: 4148703
   InMcastOctets: 6382150
   OutMcastOctets: 20111
   InBcastOctets: 11700118

*** Device features:
eth0: 0x1149a9
lo: 0x201b7c65
wlan0: 0x6000

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor 
Family DRAM Controller [8086:0104] (rev 09)
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort+ >SERR- <PERR- INTx-
        Latency: 0
        Capabilities: <access denied>
        Kernel driver in use: agpgart-intel

00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200/2nd Generation Core 
Processor Family PCI Express Root Port [8086:0101] (rev 09) (prog-if 00 [Normal 
decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        I/O behind bridge: 00005000-00005fff
        Memory behind bridge: f0000000-f10fffff
        Prefetchable memory behind bridge: 00000000c0000000-00000000d1ffffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>
        Kernel driver in use: pcieport

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core 
Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 
00 [VGA controller])
        Subsystem: Lenovo Device [17aa:21d0]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 47
        Region 0: Memory at f1400000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at 6000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: <access denied>
        Kernel driver in use: i915

00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200 Series 
Chipset Family HECI Controller #1 [8086:1c3a] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx+
        Latency: 0
        Interrupt: pin A routed to IRQ 11
        Region 0: Memory at f3a25000 (64-bit, non-prefetchable) [size=16]
        Capabilities: <access denied>

00:16.3 Serial controller [0700]: Intel Corporation 6 Series/C200 Series 
Chipset Family KT Controller [8086:1c3d] (rev 04) (prog-if 02 [16550])
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin B routed to IRQ 19
        Region 0: I/O ports at 60b0 [size=8]
        Region 1: Memory at f3a2c000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: <access denied>
        Kernel driver in use: serial

00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network 
Connection [8086:1502] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Interrupt: pin A routed to IRQ 44
        Region 0: Memory at f3a00000 (32-bit, non-prefetchable) [disabled] 
[size=128K]
        Region 1: Memory at f3a2b000 (32-bit, non-prefetchable) [disabled] 
[size=4K]
        Region 2: I/O ports at 6080 [disabled] [size=32]
        Capabilities: <access denied>
        Kernel driver in use: e1000e

00:1a.0 USB Controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset 
Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 04) (prog-if 20 [EHCI])
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at f3a2a000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: <access denied>
        Kernel driver in use: ehci_hcd

00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset 
Family High Definition Audio Controller [8086:1c20] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 48
        Region 0: Memory at f3a20000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: HDA Intel

00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset 
Family PCI Express Root Port 1 [8086:1c10] (rev b4) (prog-if 00 [Normal decode])
        Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort+ <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>
        Kernel driver in use: pcieport

00:1c.1 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset 
Family PCI Express Root Port 2 [8086:1c12] (rev b4) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        Memory behind bridge: f3900000-f39fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>
        Kernel driver in use: pcieport

00:1c.3 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset 
Family PCI Express Root Port 4 [8086:1c16] (rev b4) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=05, subordinate=0c, sec-latency=0
        I/O behind bridge: 00004000-00004fff
        Memory behind bridge: f3100000-f38fffff
        Prefetchable memory behind bridge: 00000000f1800000-00000000f1ffffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>
        Kernel driver in use: pcieport

00:1c.4 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset 
Family PCI Express Root Port 5 [8086:1c18] (rev b4) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=0d, subordinate=0d, sec-latency=0
        I/O behind bridge: 00003000-00003fff
        Memory behind bridge: f2800000-f30fffff
        Prefetchable memory behind bridge: 00000000f2000000-00000000f27fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>
        Kernel driver in use: pcieport

00:1d.0 USB Controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset 
Family USB Enhanced Host Controller #1 [8086:1c26] (rev 04) (prog-if 20 [EHCI])
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 23
        Region 0: Memory at f3a29000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: <access denied>
        Kernel driver in use: ehci_hcd

00:1f.0 ISA bridge [0601]: Intel Corporation QM67 Express Chipset Family LPC 
Controller [8086:1c4f] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Capabilities: <access denied>

00:1f.2 SATA controller [0106]: Intel Corporation 6 Series/C200 Series Chipset 
Family 6 port SATA AHCI Controller [8086:1c03] (rev 04) (prog-if 01 [AHCI 1.0])
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin B routed to IRQ 43
        Region 0: I/O ports at 60a8 [size=8]
        Region 1: I/O ports at 60bc [size=4]
        Region 2: I/O ports at 60a0 [size=8]
        Region 3: I/O ports at 60b8 [size=4]
        Region 4: I/O ports at 6060 [size=32]
        Region 5: Memory at f3a28000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: <access denied>
        Kernel driver in use: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 6 Series/C200 Series Chipset Family 
SMBus Controller [8086:1c22] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Interrupt: pin C routed to IRQ 18
        Region 0: Memory at f3a24000 (64-bit, non-prefetchable) [size=256]
        Region 4: I/O ports at efa0 [size=32]
        Kernel driver in use: i801_smbus

01:00.0 VGA compatible controller [0300]: nVidia Corporation Device [10de:1057] 
(rev a1) (prog-if 00 [VGA controller])
        Subsystem: Lenovo Device [17aa:21d0]
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at f0000000 (32-bit, non-prefetchable) [disabled] 
[size=16M]
        Region 1: Memory at c0000000 (64-bit, prefetchable) [disabled] 
[size=256M]
        Region 3: Memory at d0000000 (64-bit, prefetchable) [disabled] 
[size=32M]
        Region 5: I/O ports at 5000 [disabled] [size=128]
        Expansion ROM at f1000000 [disabled] [size=512K]
        Capabilities: <access denied>

03:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6205 
[8086:0085] (rev 34)
        Subsystem: Intel Corporation Centrino Advanced-N 6205 AGN [8086:1311]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 46
        Region 0: Memory at f3900000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: <access denied>
        Kernel driver in use: iwlagn

0d:00.0 System peripheral [0880]: Ricoh Co Ltd Device [1180:e823] (rev 05) 
(prog-if 01)
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at f2801000 (32-bit, non-prefetchable) [size=256]
        Capabilities: <access denied>
        Kernel driver in use: sdhci-pci

0d:00.3 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd FireWire Host Controller 
[1180:e832] (rev 04) (prog-if 10 [OHCI])
        Subsystem: Lenovo Device [17aa:21ce]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin D routed to IRQ 45
        Region 0: Memory at f2800000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: <access denied>
        Kernel driver in use: firewire_ohci


** USB devices:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 0a5c:217f Broadcom Corp. Bluetooth Controller
Bus 001 Device 004: ID 04f2:b221 Chicony Electronics Co., Ltd


-- System Information:
Debian Release: wheezy/sid
 APT prefers testing
 APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.39-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.39-2-amd64 depends on:
ii  debconf [debconf-2.0]         1.5.40     Debian configuration management sy
ii  initramfs-tools [linux-initra 0.99       tools for generating an initramfs
ii  linux-base                    3.2        Linux image base package
ii  module-init-tools             3.16-1     tools for managing Linux kernel mo

Versions of packages linux-image-2.6.39-2-amd64 recommends:
pn  firmware-linux-free           <none>     (no description available)

Versions of packages linux-image-2.6.39-2-amd64 suggests:
ii  grub-pc                       1.99-6     GRand Unified Bootloader, version
pn  linux-doc-2.6.39              <none>     (no description available)

Versions of packages linux-image-2.6.39-2-amd64 is related to:
pn  firmware-bnx2                 <none>     (no description available)
pn  firmware-bnx2x                <none>     (no description available)
pn  firmware-ipw2x00              <none>     (no description available)
pn  firmware-ivtv                 <none>     (no description available)
ii  firmware-iwlwifi              0.30       Binary firmware for Intel Wireless
pn  firmware-linux                <none>     (no description available)
pn  firmware-linux-nonfree        <none>     (no description available)
pn  firmware-qlogic               <none>     (no description available)
pn  firmware-ralink               <none>     (no description available)
pn  xen-hypervisor                <none>     (no description available)

-- debconf information:
 linux-image-2.6.39-2-amd64/postinst/depmod-error-initrd-2.6.39-2-amd64: false
 linux-image-2.6.39-2-amd64/postinst/ignoring-ramdisk:
 linux-image-2.6.39-2-amd64/prerm/removing-running-kernel-2.6.39-2-amd64: true
 linux-image-2.6.39-2-amd64/postinst/missing-firmware-2.6.39-2-amd64:






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