On Tue, Apr 26, 2011 at 03:00:38PM +0100, Colin Guthrie wrote: > RFKILL used to work fine on 2.6.37 for me but I have a regression on .38. [snip] > 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? That mean device see rf switch in state to disable radio. > 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 You may want to revert these commits and see if that helps. > 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? Sometimes function iwl_enable_interrupts() is called unconditionally without STATUS_INT_ENABLED check. This part is generally ok. If reverting 2 above commit will not help, you may wish to blacklist all *wmi* and/or *acpi* modules. This problems looks more like platform problem than rfkill core or iwlagn. If that will not help, bisection will be needed to solve the issue. Stanislaw -- 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
