Centrino Ultimate-N 6300 WiFi firmware crashes on attempt to connect Ad-Hoc network

Bug #1574577 reported by dronus on 2016-04-25
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-lts-vivid (Ubuntu)
Undecided
Unassigned

Bug Description

At some time (maybe after some resumes from standby), any attempt to connect certain Ad-Hoc WiFi networks fails. I can still connect access point networks.

dmesg output is full of wifi firmware related crashes I guess.

Restarting the machine solves the problem, until it kicks in again at some point.

Please don't poke on the older BIOS version of this machine, I have my reasons and it won't affect this very defined problem I guess.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.19.0-58-generic 3.19.0-58.64~14.04.1
ProcVersionSignature: Ubuntu 3.19.0-58.64~14.04.1-generic 3.19.8-ckt16
Uname: Linux 3.19.0-58-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Apr 25 13:03:41 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-11-22 (154 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: linux-lts-vivid
UpgradeStatus: No upgrade log present (probably fresh install)

dronus (paul-geisler) wrote :
dronus (paul-geisler) wrote :
Download full text (208.5 KiB)

dmesg:

[66361.833201] bbswitch: disabling discrete graphics
[66361.833209] ACPI Warning: \_SB_.PCI0.PEG_.VID_._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20141107/nsarguments-95)
[66361.903303] psmouse serio1: synaptics: queried max coordinates: x [..5888], y [..4820]
[66362.407738] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[66362.409849] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[66362.410099] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[66362.633611] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[66362.633835] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[66362.744662] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[66366.134713] wlan0: authenticate with 00:22:75:e5:d2:ed
[66366.180044] wlan0: send auth to 00:22:75:e5:d2:ed (try 1/3)
[66366.181889] wlan0: authenticated
[66366.183992] wlan0: associate with 00:22:75:e5:d2:ed (try 1/3)
[66366.188089] wlan0: RX AssocResp from 00:22:75:e5:d2:ed (capab=0x411 status=0 aid=6)
[66366.191684] wlan0: associated
[66366.191730] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[66371.721304] wlan0: deauthenticating from 00:22:75:e5:d2:ed by local choice (Reason: 3=DEAUTH_LEAVING)
[66371.727541] cfg80211: Calling CRDA to update world regulatory domain
[66371.735766] cfg80211: World regulatory domain updated:
[66371.735777] cfg80211: DFS Master region: unset
[66371.735782] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[66371.735791] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[66371.735798] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[66371.735805] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[66371.735810] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[66371.735814] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[66375.802371] wlan0: Selected IBSS BSSID aa:26:59:36:64:da based on configured SSID
[66375.847658] iwlwifi 0000:03:00.0: Unable to find TIM Element in beacon
[66375.848935] iwlwifi 0000:03:00.0: Unable to find TIM Element in beacon
[66530.452548] e1000e: eth0 NIC Link is Down
[66530.674116] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[66530.674432] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[66530.898713] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[66530.898952] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[66530.997359] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[66531.334299] init: anacron main process (24543) killed by TERM signal
[66531.384062] PM: Syncing filesystems ... done.
[66531.389751] PM: Preparing system for mem sleep
[66531.389972] bbswitch: enabling discrete graphics
[66531.653171] thinkpad_acpi: EC reports that Thermal Table has changed
[66531.653251] Freezing user space processes ... (elapsed 0.001 seconds) done.
[66531.655115] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[66531.656350] PM: Entering mem sleep
[66531.656408] Suspending console(s) (use no_console_suspend to debug)
[66531.841034] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[66531.841138] sd 0...

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