Bug 159529

not enough information.

I know sorry. This will be enough?

(no debugging symbols found)
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread -1247660320 (LWP 8373)]
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
0xffffe410 in __kernel_vsyscall ()
[Current thread is 0 (process 8373)]

Thread 1 (Thread -1247660320 (LWP 8373)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7eb6e70 in nanosleep () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7eb6ca7 in sleep () from /lib/tls/i686/cmov/libc.so.6
#3  0xb784b640 in ?? () from /usr/lib/kde4/lib/libkdeui.so.5
#4  0x00000001 in ?? ()
#5  0x00000000 in ?? ()
#0  0xffffe410 in __kernel_vsyscall ()

Another times in start kde4 was
1247336763 (LWP 7884)

can you install debbuging symbol with your distribution package...It will help us to find the problem...

Lukasz: Where did you get the KDE4 packages for Kubuntu?  Did you install a recent KDE4 Kubuntu Live CD Live CD or did you install KDE4 packages through adept?  

yes, unfortunately there are no debugging symbols in that backtract; Alexis has the right idea though (install the debug packages).

i'm pretty sure that this is just the same upgrade bug we've already seen before though.

I have kubuntu 7.10.
 I instal KDE4 from:
http://kubuntu.org/announcements/kde-4.0.2.php
What mean "install debbuging symbol? How?

You need to install the kde4-packages ending with debug or dbg, not sure, what it is in Kubuntu...

Lukas

i was install python-kde4-dbg and i was saw:

(no debugging symbols found)
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread -1248172320 (LWP 31690)]
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
0xffffe410 in __kernel_vsyscall ()
[Current thread is 0 (process 31690)]

Thread 1 (Thread -1248172320 (LWP 31690)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7e39e70 in nanosleep () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e39ca7 in sleep () from /lib/tls/i686/cmov/libc.so.6
#3  0xb77ce640 in ?? () from /usr/lib/kde4/lib/libkdeui.so.5
#4  0x00000001 in ?? ()
#5  0x00000000 in ?? ()
#0  0xffffe410 in __kernel_vsyscall ()

So u see it's nothing new :(
I dont know what to do now?

http://techbase.kde.org/index.php?title=Development/Tutorials/Debugging/How_to_create_useful_crash_reports

You should install packages like kde4libs-dbg, kde4base-dbg etc. I think (I don't use Kubuntu). Simply the kde4-packages with -dbg suffix.

i was install kde4libs-dbg, kde4base-dbg etc, and now i saw:
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1247385888 (LWP 2105)]
[KCrash handler]
#6  0x081639e3 in ?? ()
#7  0xb7d88f3f in Plasma::Applet::flushUpdatedConstraints (this=0x810d018)
    at /build/buildd/kdebase-workspace-4.0.2/libs/plasma/applet.cpp:699
#8  0xb7db4b62 in Plasma::Corona::loadApplets (this=0x80ff3a8, 
    configName=@0x81064c0)
    at /build/buildd/kdebase-workspace-4.0.2/libs/plasma/corona.cpp:224
#9  0xb7db5527 in Plasma::Corona::loadApplets (this=0x80ff3a8)
    at /build/buildd/kdebase-workspace-4.0.2/libs/plasma/corona.cpp:296
#10 0xb7fd1ddc in PlasmaApp::corona (this=0x8061628)
    at /build/buildd/kdebase-workspace-4.0.2/plasma/plasma/plasmaapp.cpp:219
#11 0xb7fd4aca in RootWidget (this=0x80fee18)
    at /build/buildd/kdebase-workspace-4.0.2/plasma/plasma/rootwidget.cpp:49
#12 0xb7fd2786 in PlasmaApp (this=0x8061628, display=0x805b048, 
    visual=134592384, colormap=27262977)
    at /build/buildd/kdebase-workspace-4.0.2/plasma/plasma/plasmaapp.cpp:156
#13 0xb7fd2f79 in PlasmaApp::self ()
    at /build/buildd/kdebase-workspace-4.0.2/plasma/plasma/plasmaapp.cpp:96
#14 0xb7fd17ac in kdemain (argc=1, argv=0xbfd4b024)
    at /build/buildd/kdebase-workspace-4.0.2/plasma/plasma/main.cpp:51
#15 0x08048582 in main (argc=1466120, argv=0xb7e66000)
    at /build/buildd/kdebase-workspace-4.0.2/obj-i486-linux-gnu/plasma/plasma/plasma-qgv_dummy.cpp:3
#16 0xb7e7d050 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#17 0x080484f1 in _start ()
#0  0xffffe410 in __kernel_vsyscall ()

sommebody help me?

Reopening: we have a backtrace with at least function names, so it might be possible to do something with it.  Also, it's been reported again by another user.

*** Bug 159662 has been marked as a duplicate of this bug. ***

It seems, that Kubuntu and KDE 4.0.2 generates troubles. Please try again with KDE 4.0.3 and rename ./kde4 to ./kde4_old and do the same with ./kde. 
If it works after. Please close the bug.

Like descibed in another bug, try this first:
remove your ~/.kde/share/config/plasma-appletsrc and try again.

With 4.1 just around the corner, it's time to close off 4.0 bugs. If you get similar crashes with 4.1 please open a new bug with a full backtrace.