[Bug 655769] [NEW] running powertop with r8192se_pci module loaded results in a kernel panic

[Steve Langasek]

Public bug reported:

When the r8192se_pci module is loaded on my system, running powertop
yields the following kernel panic.

[  139.210836] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff8149e995
[  139.210838]
[  139.210925] Pid: 2946, comm: iwpriv Not tainted 2.6.35-22-generic #33-Ubuntu
[  139.210976] Call Trace:
[  139.211003]  [<ffffffff815863e0>] panic+0x90/0x111
[  139.211043]  [<ffffffff8149e995>] ? dev_ioctl+0x415/0x4f0
[  139.211093]  [<ffffffff8106097b>] __stack_chk_fail+0x1b/0x30
[  139.211135]  [<ffffffff8149e995>] dev_ioctl+0x415/0x4f0
[  139.211176]  [<ffffffff81101717>] ? unlock_page+0x27/0x30
[  139.211219]  [<ffffffff8111df59>] ? __do_fault+0x479/0x560
[  139.211319] panic occurred, switching back to text console

If I manually unload the module with 'modprobe -r', I can run powertop
without problem.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-22-generic 2.6.35-22.33
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  vorlon     2812 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2520000 irq 46'
   Mixer name	: 'Intel IbexPeak HDMI'
   Components	: 'HDA:14f15069,17aa2155,00100302 HDA:80862804,17aa21b5,00100000'
   Controls      : 14
   Simple ctrls  : 6
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6QHT30WW-1.11'
   Mixer name	: 'ThinkPad EC 6QHT30WW-1.11'
   Components	: ''
   Controls      : 1
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Wed Oct  6 00:22:21 2010
HibernationDevice: RESUME=UUID=f6ab3c43-61b4-4af7-bf03-fa3b147a1de0
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
MachineType: LENOVO 3249CTO
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-22-generic root=/dev/mapper/hostname-root ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:
 0: tpacpi_bluetooth_sw: Bluetooth
 	Soft blocked: yes
 	Hard blocked: no
SourcePackage: linux
dmi.bios.date: 08/23/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET52WW (1.22 )
dmi.board.name: 3249CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET52WW(1.22):bd08/23/2010:svnLENOVO:pn3249CTO:pvrThinkPadX201:rvnLENOVO:rn3249CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 3249CTO
dmi.product.version: ThinkPad X201
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kernel-net maverick needs-upstream-testing

-- 
running powertop with r8192se_pci module loaded results in a kernel panic
https://bugs.launchpad.net/bugs/655769
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