Hi, RFKILL used to work fine on 2.6.37 for me but I have a regression on .38. wifi works fine generally, but after cycling RFKILL I have to reload the various modules before it works again. 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@jimmy ~]# rmmod btusb [root@jimmy ~]# rmmod bluetooth [root@jimmy ~]# rmmod dell_laptop [root@jimmy ~]# rmmod iwlagn [root@jimmy ~]# rmmod iwlcore [root@jimmy ~]# rmmod mac80211 [root@jimmy ~]# rmmod cfg80211 [root@jimmy ~]# rmmod rfkill [root@jimmy ~]# lsmod | grep rfk <press button to enable> [root@jimmy ~]# modprobe iwlagn The dmesg is below (it's short enough to just paste in-line). What appears to happen is that when re-enabling it, it will automatically re-kill it again. On and working -> Turn off: 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 00:24:01:c5:4a:16 by local choice (reason=3) 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 00:24:01:c5:4a:16 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) cfg80211: Calling CRDA for country: GB cfg80211: Regulatory domain changed to country: GB cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm) cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm) cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm) cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm) usb 4-2: USB disconnect, address 3 Turn back on: iwlagn 0000:0b:00.0: RF_KILL bit toggled to enable radio. usb 4-2: new full speed USB device using uhci_hcd and address 4 usb 4-2: New USB device found, idVendor=413c, idProduct=8126 usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 4-2: Product: BCM2045 usb 4-2: Manufacturer: Broadcom Corp ADDRCONF(NETDEV_UP): wlan0: link is not ready iwlagn 0000:0b:00.0: RF_KILL bit toggled to disable radio. <------------Problem here? 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] usb 4-2: USB disconnect, address 4 FWIW, I already mentioned this problem here: https://www.mageia.org/pipermail/mageia-dev/20110421/004124.html Another user using the same kernel with the same hardware cannot reproduce, so not quite sure what's causing the issue. 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've been looking through the various commits that could come into play (although I am sure there are others): http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commitdiff;h=3dd823e6b86407aed1a025041d8f1df77e43a9c8 http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commitdiff;h=554d1d027b19265c4aa3f718b3126d2b86e09a08 http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commitdiff;h=6cd0b1cb872b3bf9fc5de4536404206ab74bafdd What is odd about the 3dd8 commit is that there is code that says: if (test_bit(STATUS_INT_ENABLED, &priv->status)) iwl_enable_interrupts(priv); I presume test_bit returns "true" if the bit is set? If so, then the call, is a little strange as iwl_enable_interrupts sets the bit again. So it's only enabled if it's already set? Perhaps test_bit returns 0 when it's already set? 172 static inline void iwl_enable_interrupts(struct iwl_priv *priv) 173 { 174 IWL_DEBUG_ISR(priv, "Enabling interrupts\n"); 175 set_bit(STATUS_INT_ENABLED, &priv->status); 176 iwl_write32(priv, CSR_INT_MASK, priv->inta_mask); 177 } But I'm no kernel hacker, so all this could be rubbish. Cheers in advance for any insights! Col -- Colin Guthrie gmane(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/] -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
