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Bug 265738 - KDE4/xfce4 gets stuck with 100% cpu usage on login with specific user
Summary: KDE4/xfce4 gets stuck with 100% cpu usage on login with specific user
Status: RESOLVED TEST-REQUEST
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] KDE (show other bugs)
Hardware: AMD64 Linux
: High critical (vote)
Assignee: Gentoo KDE team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-04-11 09:25 UTC by Thorsten
Modified: 2009-10-19 17:22 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Thorsten 2009-04-11 09:25:58 UTC
After installing KDE 4.2 (upgrade from 3.5 via Portage 2.2 sets) on a fresh (5 days old) gentoo machine, everything went fine. Machine is a Core2Duo w/ 4GB RAM and a ATI Radeon 4850 using x11-drivers/ati-drivers. Kernel is 2.6.28-gentoo-r4. 

The problem: 
Since today, when I do a login as restricted user "johndoe" (wheel, audio...), X consumes 100% cpu and the WM is completly unresponsible. After about 5 minutes, the login splash disapears and slowly the KDE desktop appears. A click on the "K"-launcher takes another 5 minutes to respond. Exactly the same happens, if I choose to start xfce4 instead of KDE, so it may be more an x-server problem in combination with that users config.
BTW: Everything is fine using root for exampel, no strange behavior here.

I _THINK_ there maybe something to trying autostart after login, maybe even X is trying to restore something. Logs do say nothing. Xorg-config is nearly default (except fglrx and monitor resolution).

PS: English is really not my native language, but I think you'll be able to read it.
PS2: my first bug report in 4 years of gentoo - hope everything relevant is attached :)
PS3: I've already searched the usual sources (gentoo forums, gentoo bugs, google etc)

Reproducible: Always

Steps to Reproduce:
1. Start WM via XDM on Boot
2. login in as "johndoe"
-OR-
1. Start WM via startx (kernelcmd nox to avoid starting xdm)
2. login in as "johndoe"
Actual Results:  
WM takes 100% cpu and is unresponsible even after 10 Minutes


Used versions:
sys-kernel/gentoo-sources-2.6.28-r4
x11-base/xorg-server-1.5.3-r5
x11-drivers/ati-drivers-8.582
sys-apps/portage-2.2_rc28
portage-set @kdebase 4.2.1
Comment 1 Thorsten 2009-04-11 13:22:35 UTC
Cleaning the users malfunctioning profile did help a little bit, but now the situation seems to get even more strange.

I did the following
----------------------
1. # cd /home/johndoe
2. # rm /home/johndoe/.kde (was a symlink pointing to /home/johndoe/.kde3.5
3. # mv /home/johndoe/.kde3.5 XXX-kde3.5
4. # mv /home/johndoe/.kde4 XXX-kde4
5. reboot
6. login to KDE  session as johndoe
7. KDE created a new profile
8. Changed a few settings (e.g. Wallpaper)
9. logged out
10. login as johndoe -> Same as before, cpu is utilized to 100%
11. reset (yes, the button on the pc's case)
12. after reboot, logged in as johndoe again
13. everything fine

So it looks like there is some condition triggering this bug. Any ideas?
Comment 2 Samuli Suominen (RETIRED) gentoo-dev 2009-10-19 17:22:20 UTC
(In reply to comment #0)
> Used versions:
> sys-kernel/gentoo-sources-2.6.28-r4

2.6.30 is stable

> x11-base/xorg-server-1.5.3-r5

1.6.3.901-r2 is stable

> x11-drivers/ati-drivers-8.582

9.9-r2 is stable

> portage-set @kdebase 4.2.1

4.3.1 is stable

about time to retest?