Comment 0 for bug 674285

If I try to turn wireless off using Fn-F2 on my Asus Eee PC 701SDX the kernel panics. This is reproducible every time.

I can avoid the panic by manually removing the r8187se driver first (using rmmod). Then the kernel does not panic, and I can turn the wireless back on using Fn-F2 again, r8187se appears to autoload and everything continues to work fine.

I think that this problem the same as bug 522119, but a comment there says to file a new bug, so here it is.

I have also had a possibly related problem with the same r8187se driver causing the system to freeze if I boot it the system with wireless on and on AC power, suspend it, resume it and then switch to battery power. I have worked around this by adding SUSPEND_MODULES="r8187se" to /etc/pm/config.d/unload_module. Other reports of this suspend problem are in bug 663784, bug 665728, but 667238 and bug 672591. These may not be related, although both the suspend problem and this wireless switch problem appear to go away when the r8187se module is not loaded.

I can provide more information / do more debugging if needed, I'm comfortable hacking kernel code. I have not been able to get the kernel to reboot after panic, and I presume this is why I'm not getting anything in /var/crash after installing linux-crashdump. Setting /proc/sys/kernel/panic (or doing it with sysctl) does not seem to work.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-22-generic-pae 2.6.35-22.35
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic-pae 2.6.35.4
Uname: Linux 2.6.35-22-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: robie 1284 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf3eb8000 irq 44'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,10438330,00100004'
   Controls : 11
   Simple ctrls : 7
Date: Thu Nov 11 22:49:24 2010
HibernationDevice: RESUME=UUID=511d8d4a-7fbf-46ad-9a9e-25e50f26895d
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Release i386 (20101007)
Lsusb:
 Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK Computer INC. 701SDX
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic-pae root=UUID=659ad3ee-b65b-4715-9edf-11b4945710f7 ro crashkernel=384M-2G:64M,2G-:128M quiet splash
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:
 0: eeepc-wlan: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
StagingDrivers: r8187se
Title: [STAGING]
dmi.bios.date: 02/12/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0402
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 701SDX
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTek Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0402:bd02/12/2009:svnASUSTeKComputerINC.:pn701SDX:pvr0402:rvnASUSTeKComputerINC.:rn701SDX:rvrx.xx:cvnASUSTekComputerINC.:ct10:cvrx.x:
dmi.product.name: 701SDX
dmi.product.version: 0402
dmi.sys.vendor: ASUSTeK Computer INC.