Bug 233865

Summary:	system freeze when plugging in USB-stick
Product:	[Unmaintained] solid	Reporter:	didi156 <didi156>
Component:	general	Assignee:	Kevin Ottens <ervin>
Status:	RESOLVED WORKSFORME
Severity:	crash	CC:	afiestas
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description didi156 2010-04-09 19:31:23 UTC

Version:           unknown (using 4.4.2 (KDE 4.4.2), Kubuntu packages)
Compiler:          cc
OS:                Linux (x86_64) release 2.6.31-20-generic

Initially it all looked like a HW issue, but seems not:
When attaching an USB-stick to my PC, it freezes in the moment the LED of the stick begins to blink. Freeeze means: mouse pointer dead, nomore GUI update, no reaction at any keyboard input. I can always reproduce that, tried with 2 sticks and on different USB ports.
Also tried with an SuSE 11.0 install (KDE 3.5) on same machine/HDD, but different partition, there no probelem (no freeze, can access sticks content).
What pointed me to KDE:
I tried the following: log out, stop kdm from console, attach USB-stick (is mounted successfully), then start kdm and login again. That way everything is fine (also USB-stick access).
I have "kubuntu-ppa/backports" added to sources list and think that one of the recent updates may have broken this.

Comment 1 Kevin Ottens 2010-04-09 20:11:29 UTC

Well, could be something in the X server as well. Rolling a completely different distro to test the different gives us nothing. A better test would be to keep the distro but with a different desktop started.

In any case it's impossible to debug without more information. If you have a second computer login into it via ssh and checking if something eats up the CPU, etc. would be welcome.

Looking for output related to the device plug in .xession-errors would help as well. And last but not least plasma-desktop debug output would be welcome as well.

Comment 2 didi156 2010-04-09 21:29:36 UTC

I guess you are right.
I did a quick look at the .xsession-errors, but couldn't locate anything interesting (difficult without timestamps). I don't want to upload it bcs it's full of private data.
However, I now upgraded my installation to 10.04 beta and the problem disappeared. I'm not sure if that KDE is more recent then the one in ppa-backports which I guess would render this report irrelevant.
I couldn't locate a logfile for plasma-desktop output, can you help me out?

Comment 3 Alex Fiestas 2013-03-14 01:56:52 UTC

Since this was fixed for the reporter after upgrading, some considerable time has passed since latest interaction and there is no other bug like this, I'm going to set the bug as Resolved/Worksforme.

Please, if you are able to reproduce the bug in 4.9.5 or 4.10.1 feel free to reopen this bug !

Thanks for reporting and sorry for the delay :/