Bug#697501: AR9285: enabling or disabling Wi-Fi freezes the system

[Jonathan Nieder <jrnieder@gmail.com>]

Hi,

programmer11180@programist.ru wrote:

> When I enable or disable wi-fi, system sometimes hangs. Also, Also,
> the system sometimes hangs when booting.  This bug is also present
> in other kernels (higher 3.2) and 64-bit system.  After that I had
> to turn off the laptop by power button.

Thanks for reporting.  By enable/disable wi-fi, do you mean using a
hardware switch?  Can you reproduce this problem without the "quiet"
option on the kernel command line (for example when booting in
recovery mode), and if so, does it show any messages on the screen
when it hangs?  A photograph would be fine.

[...]
> DMI: Gateway          LT31            /SJM11-YK        , BIOS v1.3201  06/18/2009
[...]
> Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-4-686-pae root=UUID=13f3c2d1-c820-4b5d-89d9-62b8cdd3dd23 ro quiet acpi_backlight=vendor init=/sbin/e4rat-preload
[...]
> pci 0000:04:00.0: [168c:002b] type 0 class 0x000280
> pci 0000:04:00.0: reg 10: [mem 0xf0200000-0xf020ffff 64bit]
> pci 0000:04:00.0: supports D1
> pci 0000:04:00.0: PME# supported from D0 D1 D3hot
[...]
> ath9k 0000:04:00.0: setting latency timer to 64
> input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:14.2/input/input7
> input: HDA ATI SB Mic as /devices/pci0000:00/0000:00:14.2/sound/card0/input8
> input: HDA ATI SB Headphone as /devices/pci0000:00/0000:00:14.2/sound/card0/input9
> ath: EEPROM regdomain: 0x65
> ath: EEPROM indicates we should expect a direct regpair map
> ath: Country alpha2 being used: 00
> ath: Regpair used: 0x65
> ieee80211 phy0: Selected rate control algorithm 'ath9k_rate_control'
> Registered led device: ath9k-phy0
> ieee80211 phy0: Atheros AR9285 Rev:2 mem=0xf8740000, irq=18
> acer_wmi: Function bitmap for Communication Device: 0x7

Hope that helps,
Jonathan