Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

KDE 4.2.85/Qt 4.5.1 (version 4.2.85 is not selectable on bugzilla).

plasma crashed when I moved mouse over taskbar. Not sure how to reproduce it.

Application: Рабочее пространство Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f2a0ee01740 (LWP 7910))]

Thread 2 (Thread 0x7f29eea3f950 (LWP 7913)):
#0  0x00007f2a07ccef69 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f2a0b97c2b9 in QWaitCondition::wait (this=0x25540a0, mutex=0x2554098, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f2a08793adc in QHostInfoAgent::run (this=0x2554080) at kernel/qhostinfo.cpp:260
#3  0x00007f2a0b97b2d2 in QThreadPrivate::start (arg=0x2554080) at thread/qthread_unix.cpp:189
#4  0x00007f2a07ccb263 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f2a0e81678d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

Thread 1 (Thread 0x7f2a0ee01740 (LWP 7910)):
[KCrash Handler]
#5  strlen () at ../sysdeps/x86_64/strlen.S:37
#6  0x00007f2a0ba6d138 in QMetaObject::invokeMethod (obj=0x656a624f51286465, member=0x292a7463 <Address 0x292a7463 out of bounds>, type=Qt::AutoConnection, ret=
        {<QGenericArgument> = {_data = 0x0, _name = 0x0}, <No data fields>}, val0={_data = 0x7fff16f3ff58, _name = 0x7f2a0e4bd9e3 "qreal"}, val1={_data = 0x0, _name = 0x0}, val2=
      {_data = 0x0, _name = 0x0}, val3={_data = 0x0, _name = 0x0}, val4={_data = 0x0, _name = 0x0}, val5={_data = 0x0, _name = 0x0}, val6={_data = 0x0, _name = 0x0}, val7={_data = 0x0, _name = 0x0}, 
    val8={_data = 0x0, _name = 0x0}, val9={_data = 0x0, _name = 0x0}) at ../../src/corelib/tools/qbytearray.h:68
#7  0x00007f2a0e3a6afd in QMetaObject::invokeMethod (obj=0x656a624f51286465, member=0x292a7463 <Address 0x292a7463 out of bounds>, val0={_data = 0x7fff16f3ff58, _name = 0x7f2a0e4bd9e3 "qreal"}, val1=
      {_data = 0x0, _name = 0x0}, val2={_data = 0x0, _name = 0x0}, val3={_data = 0x0, _name = 0x0}, val4={_data = 0x0, _name = 0x0}, val5={_data = 0x0, _name = 0x0}, val6={_data = 0x0, _name = 0x0}, 
    val7={_data = 0x0, _name = 0x0}, val8={_data = 0x0, _name = 0x0}, val9={_data = 0x0, _name = 0x0}) at /usr/lib/qt4/include/QtCore/qobjectdefs.h:403
#8  0x00007f2a0e3a1c17 in Plasma::Animator::timerEvent (this=0x20813b0, event=<value optimized out>) at /usr/src/debug/kdelibs-4.2.85/plasma/animator.cpp:683
#9  0x00007f2a0ba742d3 in QObject::event (this=0x20813b0, e=0x292a7463) at kernel/qobject.cpp:1073
#10 0x00007f2a0c1590ed in QApplicationPrivate::notify_helper (this=0x1c26790, receiver=0x20813b0, e=0x7fff16f406a0) at kernel/qapplication.cpp:4057
#11 0x00007f2a0c16135a in QApplication::notify (this=0x1c0d660, receiver=0x20813b0, e=0x7fff16f406a0) at kernel/qapplication.cpp:4022
#12 0x00007f2a0d203e3e in KApplication::notify (this=0x1c0d660, receiver=0x20813b0, event=0x7fff16f406a0) at /usr/src/debug/kdelibs-4.2.85/kdeui/kernel/kapplication.cpp:307
#13 0x00007f2a0ba6453c in QCoreApplication::notifyInternal (this=0x1c0d660, receiver=0x20813b0, event=0x7fff16f406a0) at kernel/qcoreapplication.cpp:610
#14 0x00007f2a0ba91596 in QTimerInfoList::activateTimers (this=0x1c29f50) at ../../src/corelib/kernel/qcoreapplication.h:213
#15 0x00007f2a0ba8dc8d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:164
#16 0x00007f2a062bce91 in IA__g_main_loop_quit (loop=0x7f2a0e823600) at gmain.c:2692
#17 0x0000000001c28cc0 in ?? ()
#18 0x00007f2a0ba8dc80 in ?? () from /usr/lib64/libQtCore.so.4
#19 0x0000000000000000 in ?? ()