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Bug 133

Summary:	kdesktop crashes when screen size changes
Product:	TDE	Reporter:	Julius Schwartzenberg <julius.schwartzenberg>
Component:	tdebase	Assignee:	Timothy Pearson <kb9vqf>
Status:	RESOLVED FIXED
Severity:	enhancement	CC:	bugwatch, darrella
Priority:	P5
Version:	3.5.10
Hardware:	Other
OS:	Linux
Compiler Version:		TDE Version String:
Application Version:		Application Name:

Description Julius Schwartzenberg 2009-11-17 12:47:36 CST

This problem was introduced only recently. When I change my screen size with xrandr, kdesktop crashes.

Comment 1 Julius Schwartzenberg 2009-11-18 06:24:36 CST

Here is the trace:

[Thread debugging using libthread_db enabled]
[KCrash handler]
#5  0x00007fb0cb7f5109 in KBackgroundRenderer::desktopResized() ()
   from /opt/kde3/lib/libkdeinit_kdesktop.so
#6  0x00007fb0cb7ce3a8 in KBackgroundManager::desktopResized() ()
   from /opt/kde3/lib/libkdeinit_kdesktop.so
#7  0x00007fb0cb7ce560 in KBackgroundManager::qt_invoke(int, QUObject*) ()
   from /opt/kde3/lib/libkdeinit_kdesktop.so
#8  0x00007fb0c953cf20 in QObject::activate_signal(QConnectionList*, QUObject*) () from /usr/lib/libqt-mt.so.3
#9  0x00007fb0c953ec8a in QObject::activate_signal(int, int) ()
   from /usr/lib/libqt-mt.so.3
#10 0x00007fb0c947ca9b in QApplication::x11ProcessEvent(_XEvent*) ()
   from /usr/lib/libqt-mt.so.3
#11 0x00007fb0c948f7a2 in QEventLoop::processEvents(unsigned int) ()
   from /usr/lib/libqt-mt.so.3
#12 0x00007fb0c94f55c1 in QEventLoop::enterLoop() ()
   from /usr/lib/libqt-mt.so.3
#13 0x00007fb0c94f5472 in QEventLoop::exec() () from /usr/lib/libqt-mt.so.3
#14 0x00007fb0cb7db5e2 in kdemain () from /opt/kde3/lib/libkdeinit_kdesktop.so
#15 0x00007fb0cac72abd in __libc_start_main (main=<value optimized out>, 
    argc=<value optimized out>, ubp_av=<value optimized out>, 
    init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff90855ae8)
    at libc-start.c:220
#16 0x00000000004005b9 in ?? ()
#17 0x00007fff90855ae8 in ?? ()
#18 0x000000000000001c in ?? ()
#19 0x0000000000000001 in ?? ()
#20 0x00007fff90857b68 in ?? ()
#21 0x0000000000000000 in ?? ()

Comment 2 Timothy Pearson 2009-11-18 12:45:27 CST

Thank you for the backtrace.  Unfortunately it is not very useful; could you install the kdebase-kde3-dbg package (the debugging symbols) and generate a new backtrace?

After you do that the solution will most likely be trivial.

Thanks!

Comment 3 Julius Schwartzenberg 2009-11-18 14:39:20 CST

[Thread debugging using libthread_db enabled]
[KCrash handler]
#5  KBackgroundRenderer::desktopResized (this=0x0)
    at /build/buildd/kdebase-kde3-3.5.10/./kcontrol/background/bgrender.cpp:88
#6  0x00007f4bf46253a8 in KBackgroundManager::desktopResized (this=0x11e7d50)
    at /build/buildd/kdebase-kde3-3.5.10/./kdesktop/bgmanager.cc:759
#7  0x00007f4bf4625560 in KBackgroundManager::qt_invoke (this=0x11e7d50, 
    _id=7, _o=0x7fffdfd3ccc0) at ./bgmanager.moc:122
#8  0x00007f4bf2393f20 in QObject::activate_signal (this=0x10dbb40, 
    clist=<value optimized out>, o=0x7fffdfd3ccc0) at kernel/qobject.cpp:2383
#9  0x00007f4bf2395c8a in QObject::activate_signal (this=0x10dbb40, 
    signal=<value optimized out>, param=<value optimized out>)
    at kernel/qobject.cpp:2452
#10 0x00007f4bf22d3a9b in QApplication::x11ProcessEvent (this=0x7fffdfd3d700, 
    event=0x7fffdfd3d030) at kernel/qapplication_x11.cpp:3497
#11 0x00007f4bf22e67a2 in QEventLoop::processEvents (this=0x10dbe10, 
    flags=<value optimized out>) at kernel/qeventloop_x11.cpp:195
#12 0x00007f4bf234c5c1 in QEventLoop::enterLoop (this=0x10dbe10)
    at kernel/qeventloop.cpp:201
#13 0x00007f4bf234c472 in QEventLoop::exec (this=0x0)
    at kernel/qeventloop.cpp:148
#14 0x00007f4bf46325e2 in kdemain (argc=<value optimized out>, 
    argv=<value optimized out>)
    at /build/buildd/kdebase-kde3-3.5.10/./kdesktop/main.cc:214
#15 0x00007f4bf3ac9abd in __libc_start_main (main=<value optimized out>, 
    argc=<value optimized out>, ubp_av=<value optimized out>, 
    init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fffdfd3d9c8)
    at libc-start.c:220
#16 0x00000000004005b9 in _start () at ../sysdeps/x86_64/elf/start.S:113
Current language:  auto
The current source language is "auto; currently c".

Comment 4 Timothy Pearson 2009-11-19 01:35:35 CST

Thank you--that greatly aided debugging.

I believe the problem is now fixed; can you upgrade to the latest version of kdebase-kde3 and verify?

Comment 5 Julius Schwartzenberg 2009-11-24 04:59:32 CST

It's indeed fixed now! Thanks a lot!