[Bug 1178841] Re: [regression] iwl3945 0000:04:00.0: Radio disabled by HW RF Kill switch

[Zelek Uther]

I'm running Linux Mint 17 Qiana, and I have experience the same problem.

I have posted about it here:
http://forums.linuxmint.com/viewtopic.php?f=49t=181680e=0

I'm new to Linux Mint, I don't know how to log a bug report, but if
someone can post instructions I will follow them.

Thanks very much,
Zelek.

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Title:
  [regression] iwl3945 :04:00.0: Radio disabled by HW RF Kill switch

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[Bug 1388488] Re: iwl3945 0000:10:00.0: Radio disabled by HW RF Kill switch

[Zelek Uther]

If a developer require remote access to my laptop to view the issue,
just let me know.

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https://bugs.launchpad.net/bugs/1388488

Title:
  iwl3945 :10:00.0: Radio disabled by HW RF Kill switch

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[Bug 1388488] [NEW] iwl3945 0000:10:00.0: Radio disabled by HW RF Kill switch

[Zelek Uther]

Public bug reported:

See http://forums.linuxmint.com/viewtopic.php?f=49t=181680e=0
(Text from above is copied below)

I have just installed Linux Mint 17 on one of my laptops.
syslog and kern.log are going crazy. 

kern.log is filling up with lines like this:
[code]Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.138890] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch
Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.139569] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch
Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.144192] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch
Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.144563] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch
Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.146589] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch
Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.147038] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch
Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.148757] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch
Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.149123] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch
Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.151086] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch
Nov  2 09:35:42 mark-HP-Compaq-nc6400-RR980UC-ABG kernel: [ 3081.151381] 
iwl3945 :10:00.0: Radio disabled by HW RF Kill switch[/code]

syslog is filling up with lines like this:
[code]Nov  2 09:28:17 mark-HP-Compaq-nc6400-RR980UC-ABG NetworkManager[768]: 
warn Trying to remove a non-existant call id.
Nov  2 09:28:17 mark-HP-Compaq-nc6400-RR980UC-ABG wpa_supplicant[813]: Could 
not set interface wlan0 flags (UP): No such device
Nov  2 09:28:17 mark-HP-Compaq-nc6400-RR980UC-ABG wpa_supplicant[813]: nl80211: 
Could not set interface 'wlan0' UP
Nov  2 09:28:17 mark-HP-Compaq-nc6400-RR980UC-ABG wpa_supplicant[813]: Could 
not set interface wlan0 flags (UP): No such device
Nov  2 09:28:17 mark-HP-Compaq-nc6400-RR980UC-ABG wpa_supplicant[813]: WEXT: 
Could not set interface 'wlan0' UP
Nov  2 09:28:17 mark-HP-Compaq-nc6400-RR980UC-ABG wpa_supplicant[813]: wlan0: 
Failed to initialize driver interface
Nov  2 09:28:17 mark-HP-Compaq-nc6400-RR980UC-ABG NetworkManager[768]: error 
[1414873697.838472] [nm-supplicant-interface.c:997] interface_add_cb(): 
(wlan0): error adding interface: wpa_supplicant couldn't grab this interface.
[/code]

wpa_supplicant and rsyslogd are tanking the CPU (two-core laptop):
[code]top - 09:29:44 up 45 min,  3 users,  load average: 3.28, 3.36, 3.22
Tasks: 163 total,   4 running, 159 sleeping,   0 stopped,   0 zombie
%Cpu(s): 48.9 us, 29.7 sy,  0.0 ni, 20.7 id,  0.2 wa,  0.5 hi,  0.0 si,  0.0 st
KiB Mem:   3082052 total,  2998228 used,83824 free, 5168 buffers
KiB Swap:  1998844 total,34532 used,  1964312 free.  2062920 cached Mem

  PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND 
  
  813 root  20   0   30476   1004856 R  49.7  0.0  22:46.56 
wpa_supplicant  
  
  551 syslog20   0  255844   1172716 S  26.2  0.0  12:00.12 rsyslogd
  
  768 root  20   0  340840   3976   3336 S  24.2  0.1  11:06.54 
NetworkManager  
  
  497 message+  20   0   40008   1744900 R  14.2  0.1   6:24.06 dbus-daemon 
 [/code]
 

I believe it is related to the following bug:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1178841

Does anyone have a fix for this? Due to the excessive CPU load and filling up 
the root filesystem with logs the system is under heavy strain and not usable 
for what I plan for it.
I have already had to delete syslog.1 and kern.log.1 once... the root 
filesystem had 0 bytes free, I waited for the system to automatically create 
the .1 files then I deleted them.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
 USERPID ACCESS COMMAND
 /dev/snd/controlC0:  mark   1917 F pulseaudio
CurrentDesktop: X-Cinnamon
Date: Sun Nov  2 15:13:14 2014
HibernationDevice: RESUME=UUID=ba7c5f8c-8e81-47fc-b3f5-ca9b24261ee1
InstallationDate: Installed on 2014-11-01 (0 days ago)
InstallationMedia: Linux Mint 17 Qiana - Release amd64 20140624
MachineType: Hewlett-Packard HP Compaq nc6400 (RR980UC#ABG)