Ubuntu
linux-source-2.6.15 package

crash when plugging in a USB device with the USB 2.0 driver

Bug #51771 reported by Luca Falavigna
10
Affects Status Importance Assigned to Milestone
hal (Ubuntu)
New
Undecided
Unassigned
linux-source-2.6.15 (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

I noticed a strange behaviour when plugging in a USB device in Dapper. As soon as I plug in any device, system freezes completely beyond any recovery. Disabling hal everything works fine.
It should not a kernel-related bug because I was running the same kernel in Breezy without any problem.

More info can be found here: http://ubuntuforums.org/showthread.php?t=207033

Please find here attached lspci and /proc/cpuinfo output

If you need more info, please let me know.

--
Luca

See original description
Luca Falavigna (dktrkranz)
description: updated
Revision history for this message
Luca Falavigna (dktrkranz) wrote :

Kubuntu is affected too

Revision history for this message
Luca Falavigna (dktrkranz) wrote :

It seems this bug is related to uhci_hdc kernel module. If you remove it using rmmod a crash doesn't occour.

Revision history for this message
Luca Falavigna (dktrkranz) wrote :

When passing acpi=force option to the bootloader, everything goes right.
I tried this with the LiveCD. I'm going to test it on a hdd-installed version as soon as possible.

Revision history for this message
John Vivirito (gnomefreak) wrote :

Thanks for your bug report. Could you please try to obtain a
backtrace by following the instructions on
       http://wiki.ubuntu.com/DebuggingProgramCrash.
This will greatly aid us in tracking down your problem.

Changed in hal:
status: Unconfirmed → Needs Info
Revision history for this message
Luca Falavigna (dktrkranz) wrote :

Thank you for your help, but I am not able to get a backtrace because system crashes as soon as an USB device is plugged in.

As you can see from bug #50610, this behaviour only occours when ACPI BIOS is disabled. I heard about a related kernel bug, but a Debian system installed on my PC running the same kernel and hal version is not affected at all.

Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for linux-source-2.6.15 (Ubuntu) because there has been no activity for 60 days.]

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