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
I notice that there is useful debug information in the attached WifiSyslog.txt:
Jul 31 15:59:12 localhost kernel: [21311.163931] usb 2-1.5: new full speed USB device using ehci_hcd and address 5
Jul 31 15:59:13 localhost kernel: [21311.679546] hub 2-1:1.0: unable to enumerate USB device on port 5
Jul 31 15:59:13 localhost kernel: [21312.186198] usb 2-1.5: new full speed USB device using ehci_hcd and address 7
Jul 31 15:59:14 localhost kernel: [21312.299400] usb 2-1.5: configuration #1 chosen from 1 choice
Jul 31 15:59:14 localhost kernel: [21312.307919] input: Novation DMS XStation as /devices/
Jul 31 15:59:14 localhost kernel: [21312.308046] generic-usb 0003:1235:
Jul 31 16:00:19 localhost kernel: [21377.127336] BUG: soft lockup - CPU#0 stuck for 61s! [modprobe:8383]
Jul 31 16:00:19 localhost kernel: [21377.127341] Modules linked in: snd_usb_audio(+) snd_usbmidi_lib nls_iso8859_1 nls_cp437 vfat fat usb_storage binfmt_misc ppdev rfcomm sco bridge stp bnep l2cap sha256_generic aes_i586 aes_generic dm_crypt snd_hda_
Jul 31 16:00:19 localhost kernel: [21377.127427]