kernel BUG at /build/buildd/linux-2.6.32/drivers/char/tty_ldisc.c:707!

[Erez D.]

it has something to do with the usb-serial and pl2303 driver. the kernel bug appears once in a while. it happanes more when i pull out the usb-serial. especially if the serial port is open, but it can also happen without me doing anything.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-24-generic 2.6.32-24.43
Regression: No
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-24.43-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices: aplay: device_list:223: no soundcards found...
Architecture: i386
ArecordDevices: arecord: device_list:223: no soundcards found...
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/seq', '/dev/snd/timer', '/dev/sequencer2', '/dev/sequencer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Date: Mon Sep 20 10:10:24 2010
Frequency: Once a day.
HibernationDevice: RESUME=/dev/sda5
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.

 pan0 no wireless extensions.
MachineType: System manufacturer System Product Name
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-24-generic root=UUID=0be9a309-8d2e-404f-8960-acd49480a39a ro crashkernel=384M-2G:64M,2G-:128M
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
dmi.bios.date: 11/27/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: ASUS P5VD2-MX ACPI BIOS Revision 1005
dmi.board.name: P5VD2-MX
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: 1.XX
dmi.chassis.asset.tag: 123456789000
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: 1111
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSP5VD2-MXACPIBIOSRevision1005:bd11/27/2006:svnSystemmanufacturer:pnSystemProductName:pvr:rvnASUSTeKComputerINC.:rnP5VD2-MX:rvr1.XX:cvnChassisManufacture:ct3:cvr1111:
dmi.product.name: System Product Name
dmi.sys.vendor: System manufacturer

[Erez D. (erez0001)]

adding the original crash/bug log from dmesg:

[Erez D. (erez0001)]

adding lsusb

[Jeremy Foshee (jeremyfoshee)]

Hi Erez,

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Erez D. (erez0001)]

tried with mainline kernel:
Linux wsim1 2.6.35-020635rc1-generic #020635rc1 SMP Tue Jun 1 18:38:58 UTC 2010 i686 GNU/Linux

attached - crash log for the mainline kernel

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]