[Bug 556317] [NEW] WARNING: at /build/buildd/linux-2.6.32/drivers/usb/serial/usb-serial.c:440 serial_unthrottle+0x8e/0x90 [usbserial]()

[michael.huettemann]

Public bug reported:

These kernel warning started to happen pretty consistently after every
reboot somewhere during the lucid alpha cycle and have not stopped
since. I just realized that there might be a connection to a regression
with gobi_loader (the firmware loader for the internal gobi WWAN chipset
of this notebook): https://bugzilla.kernel.org/show_bug.cgi?id=15134

While the WWAN module worked in Karmic without problems, it fails in
Lucid.

Now, the kernel problem reported here could be the cause or could be the
effect of this.

ProblemType: KernelOops
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-19-generic 2.6.32-19.28
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  mhuettemann   2423 F.... pulseaudio
 /dev/snd/seq:        timidity   1618 F.... timidity
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xdab20000 irq 21'
   Mixer name	: 'Realtek ALC262'
   Components	: 'HDA:10ec0262,104d2f00,00100302 HDA:14f12c06,104d1700,00100000'
   Controls      : 17
   Simple ctrls  : 9
Date: Tue Apr  6 10:51:51 2010
Failure: oops
Frequency: Once a day.
HibernationDevice: RESUME=UUID=0f49f333-4792-496f-b1f5-86997243eddc
MachineType: Sony Corporation VGN-Z31WN_B
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=e540f235-d66b-4a46-839d-4fd034fdec67 ro acpi_osi="!Windows 2006" quiet splash acpi_backlight=vendor
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
Title: WARNING: at /build/buildd/linux-2.6.32/drivers/usb/serial/usb-serial.c:440 serial_unthrottle+0x8e/0x90 [usbserial]()
WpaSupplicantLog:
 
dmi.bios.date: 07/17/2009
dmi.bios.vendor: INSYDE
dmi.bios.version: R4041M3
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:bvnINSYDE:bvrR4041M3:bd07/17/2009:svnSonyCorporation:pnVGN-Z31WN_B:pvrJ003K70V:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VGN-Z31WN_B
dmi.product.version: J003K70V
dmi.sys.vendor: Sony Corporation

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


** Tags: amd64 apport-kerneloops kernel-oops lucid needs-upstream-testing regression-potential

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WARNING: at /build/buildd/linux-2.6.32/drivers/usb/serial/usb-serial.c:440 serial_unthrottle+0x8e/0x90 [usbserial]()
https://bugs.launchpad.net/bugs/556317
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