[Mageia-dev] kernel problem with wifi rfkill?

Thu Apr 21 11:56:37 CEST 2011

Hiya,
+
+Since the last little while (I think since kernel 2.6.38) the rfkill
+switch on my laptop doesn't work too well.
+
+I can turn the machine on with wireless (+bluetooth) enabled and if I
+hit the rfkill switch (Fn+F2 on my machine) both wifi and bt turn off as
+they should.
+
+If I turn it back on again however, both of the lights turn on briefly
+but then the wifi one goes out and bt follows shortly thereafter. The
+only way I can find to get wifi back is to reboot or:
+
+[root at jimmy ~]# rmmod btusb
+[root at jimmy ~]# rmmod bluetooth
+[root at jimmy ~]# rmmod dell_laptop
+[root at jimmy ~]# rmmod iwlagn
+[root at jimmy ~]# rmmod iwlcore
+[root at jimmy ~]# rmmod mac80211
+[root at jimmy ~]# rmmod cfg80211
+[root at jimmy ~]# rmmod rfkill
+[root at jimmy ~]# lsmod | grep rfk
+<press button to enable>
+[root at jimmy ~]# modprobe iwlagn
+
+
+
+When I disable the radio dmesg says this:
+
+
+iwlagn 0000:0b:00.0: RF_KILL bit toggled to disable radio.
+iwlagn 0000:0b:00.0: Not sending command - RF KILL
+iwlagn 0000:0b:00.0: Error sending REPLY_QOS_PARAM: enqueue_hcmd failed: -5
+iwlagn 0000:0b:00.0: Not sending command - RF KILL
+iwlagn 0000:0b:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -5
+iwlagn 0000:0b:00.0: Error setting new RXON (-5)
+iwlagn 0000:0b:00.0: Not sending command - RF KILL
+iwlagn 0000:0b:00.0: Error sending REPLY_RXON_ASSOC: enqueue_hcmd failed: -5
+wlan0: deauthenticating from 1c:af:f7:1a:bc:6e by local choice (reason=3)
+keyboard: can't emulate rawmode for keycode 240
+keyboard: can't emulate rawmode for keycode 240
+iwlagn 0000:0b:00.0: Not sending command - RF KILL
+iwlagn 0000:0b:00.0: Error sending REPLY_REMOVE_STA: enqueue_hcmd failed: -5
+iwlagn 0000:0b:00.0: Error removing station 1c:af:f7:1a:bc:6e
+iwlagn 0000:0b:00.0: Not sending command - RF KILL
+iwlagn 0000:0b:00.0: Error sending REPLY_RXON_ASSOC: enqueue_hcmd failed: -5
+iwlagn 0000:0b:00.0: Not sending command - RF KILL
+iwlagn 0000:0b:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -5
+iwlagn 0000:0b:00.0: Error setting new RXON (-5)
+cfg80211: Calling CRDA to update world regulatory domain
+iwlagn 0000:0b:00.0: Not sending command - RF KILL
+iwlagn 0000:0b:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -5
+iwlagn 0000:0b:00.0: Error setting new RXON (-5)
+iwlagn 0000:0b:00.0: Failing on timeout while stopping DMA channel 1
+[0xa5a5a5a2]
+iwlagn 0000:0b:00.0: Failing on timeout while stopping DMA channel 3
+[0xa5a5a5a2]
+iwlagn 0000:0b:00.0: Failing on timeout while stopping DMA channel 4
+[0xa5a5a5a2]
+iwlagn 0000:0b:00.0: Failing on timeout while stopping DMA channel 6
+[0xa5a5a5a2]
+cfg80211: World regulatory domain updated:
+cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain,
+max_eirp)
+cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
+cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
+cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
+cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
+cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
+usb 5-2: USB disconnect, address 5
+btusb_intr_complete: hci0 urb ffff8800286416c0 failed to resubmit (19)
+btusb_bulk_complete: hci0 urb ffff880028641f00 failed to resubmit (19)
+btusb_bulk_complete: hci0 urb ffff8800286419c0 failed to resubmit (19)
+btusb_send_frame: hci0 urb ffff88009a8ffe40 submission failed
+
+
+When I enable it again (and it fails) it says this:
+iwlagn 0000:0b:00.0: RF_KILL bit toggled to enable radio.
+keyboard: can't emulate rawmode for keycode 240
+keyboard: can't emulate rawmode for keycode 240
+usb 5-2: new full speed USB device using uhci_hcd and address 6
+usb 5-2: New USB device found, idVendor=413c, idProduct=8126
+usb 5-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
+usb 5-2: Product: BCM2045
+usb 5-2: Manufacturer: Broadcom Corp
+iwlagn 0000:0b:00.0: RF_KILL bit toggled to disable radio.
+usb 5-2: USB disconnect, address 6
+iwlagn 0000:0b:00.0: START_ALIVE timeout after 4000ms.
+
+
+Note that this is *without* pressing it wtiwce as the log's indicate -
+it's almost like the keypress is being detected twice enable/disable. or
+somethig (or the iwlagn driver somehow redisabled it after activation?)
+
+After pressing the button a third time (to disable the radio again
+(after the failed activation)) all I get is:
+
+keyboard: can't emulate rawmode for keycode 240
+keyboard: can't emulate rawmode for keycode 240
+
+
+So I'm a little stumped.
+
+Anyone else get this problem?
+
+iwlagn          : Intel Corporation|PRO/Wireless 4965 AG or AGN [Kedron]
+Network Connection [NETWORK_OTHER] (vendor:8086 device:4229 subv:8086
+subd:1101) (rev: 61)
+
+
+
+I found this which seems like a likely candidate for a fix...
+http://ns.spinics.net/lists/linux-wireless/msg64176.html
+
+but it's from February... is it really not in the .38.x kernel yet??
+
+
+Col
+
+-- 
+
+Colin Guthrie
+mageia(at)colin.guthr.ie
+http://colin.guthr.ie/
+
+Day Job:
+  Tribalogic Limited [http://www.tribalogic.net/]
+Open Source:
+  Mageia Contributor [http://www.mageia.org/]
+  PulseAudio Hacker [http://www.pulseaudio.org/]
+  Trac Hacker [http://trac.edgewall.org/]
+