[Bug 612077] [NEW] System freeze when plugging in USB audio device

[auxbuss]

Public bug reported:

When I plug in a Novation X-Station (a usb soundcard) and then try to
perform any other action, the whole system freezes. I cannot switch to
the terminal and SysRQ keys also don't work.

If I leave htop open in a terminal and then plug in the device, I can
see that modprobe launches and hits 100% on one cpu.

I can move the mouse, but if I attempt any action, then the system
freezes hard.

I use, and have used for years, this same device on a Jaunty laptop
without any difficulties. This is a new issue on Lucid, albeit on a
different laptop. It is currently working on 2.6.28-19-generic

$ lsb_release -rd
Description:	Ubuntu 10.04.1 LTS
Release:	10.04

$ cat /proc/version_signature
Ubuntu 2.6.32-24.38-generic 2.6.32.15+drm33.5

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-24-generic 2.6.32-24.38
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-24.38-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
NonfreeKernelModules: nvidia
AlsaVersion:
 Advanced Linux Sound Architecture Driver Version 1.0.23.
 Compiled on Jul  6 2010 for kernel 2.6.32-24-generic (SMP).
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC275 Analog [ALC275 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  marc       2558 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xe8e00000 irq 37'
   Mixer name	: 'Realtek ALC275'
   Components	: 'HDA:10ec0275,104d3f00,00100005'
   Controls      : 16
   Simple ctrls  : 9
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xe3080000 irq 16'
   Mixer name	: 'Nvidia GT220 HDMI'
   Components	: 'HDA:10de000a,104d3f00,00100100'
   Controls      : 16
   Simple ctrls  : 4
Date: Sat Jul 31 16:30:05 2010
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=a0f31a72-24cc-4bdc-8b33-fb8c3ad876a0
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427.1)
MachineType: Sony Corporation VPCF11M1E
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-24-generic root=UUID=bebc2260-be62-4b06-b2fc-b2b55cc0a04f ro processor.max_cstate=2 splash vga=799 quiet splash
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
SourcePackage: linux
dmi.bios.date: 02/26/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R0260Y6
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0260Y6:bd02/26/2010:svnSonyCorporation:pnVPCF11M1E:pvrC604JB8N:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCF11M1E
dmi.product.version: C604JB8N
dmi.sys.vendor: Sony Corporation

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


** Tags: apport-bug audio i386 lucid needs-upstream-testing regression-release

-- 
System freeze when plugging in USB audio device
https://bugs.launchpad.net/bugs/612077
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