Version:            (using Devel)
Compiler:          QMake version 2.01a
Using Qt version 4.5.0-rc1 in /home/kde-devel/qt-copy/lib 
OS:                Linux
Installed from:    Compiled sources

I followed the tutorial to compile trunk ... now I started it in its own X and plasma keeps crashing and restarting. Last time I started it this way (2 days ago) it worked just fine.

I am using Revision: 926392, here is the backtrace:

Application: Plasma Workspace (plasma-desktop), signal SIGSEGV
[Current thread is 0 (LWP 30351)]

Thread 4 (Thread 0xa8a00b90 (LWP 30353)):
#0  0xb7f3a430 in __kernel_vsyscall ()
#1  0xb6343df1 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb66373b1 in QProcessManager::run (this=0x98e3c20) at io/qprocess_unix.cpp:300
#3  0xb655f61b in QThreadPrivate::start (arg=0x98e3c20) at thread/qthread_unix.cpp:184
#4  0xb64f150f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb634ba0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa812bb90 (LWP 30355)):
#0  0xb7f3a430 in __kernel_vsyscall ()
#1  0xb64f5075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb655ff40 in QWaitConditionPrivate::wait (this=0x9d83be0, time=4294967295) at thread/qwaitcondition_unix.cpp:82
#3  0xb655fa3f in QWaitCondition::wait (this=0x9d86338, mutex=0x9d86334, time=4294967295) at thread/qwaitcondition_unix.cpp:154
#4  0xb790e583 in QHostInfoAgent::run (this=0x9d86328) at kernel/qhostinfo.cpp:255
#5  0xb655f61b in QThreadPrivate::start (arg=0x9d86328) at thread/qthread_unix.cpp:184
#6  0xb64f150f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb634ba0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa78efb90 (LWP 30374)):
#0  0xb7f3a430 in __kernel_vsyscall ()
#1  0xb64f5075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb655ff40 in QWaitConditionPrivate::wait (this=0x9a858f0, time=4294967295) at thread/qwaitcondition_unix.cpp:82
#3  0xb655fa3f in QWaitCondition::wait (this=0x99d7e3c, mutex=0x99d7e38, time=4294967295) at thread/qwaitcondition_unix.cpp:154
#4  0xa8cda82a in RenderThread::run (this=0x99d7e30) at /home/kde-devel/kde/src/KDE/kdebase/workspace/plasma/wallpapers/image/renderthread.cpp:91
#5  0xb655f61b in QThreadPrivate::start (arg=0x99d7e30) at thread/qthread_unix.cpp:184
#6  0xb64f150f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb634ba0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb40fb6e0 (LWP 30351)):
[KCrash Handler]
#6  SystemMonitorEngine::answerReceived (this=0x9bf2578, id=-364, answer=@0x9c1e5bc) at /usr/include/qt4/QtCore/qatomic_i386.h:116
#7  0xa8a06d38 in KSGRD::SensorAgent::processAnswer (this=0x9c1e5a8, 
    buf=0xa14da10 "Write accesses device sda3 (8:3)\t0\t0\tKB/s\nksysguardd> Dummy\t0\t0\t\nksysguardd> Read data device sda3 (8:3)\t0\t0\t1/s\nksysguardd> Write data device sda3 (8:3)\t0\t0\t1/s\nksysguardd> Read accesses device sda3 "..., buflen=6143) at /home/kde-devel/kde/src/KDE/kdebase/workspace/ksysguard/gui/ksgrd/SensorAgent.cc:184
#8  0xa8a0eb62 in KSGRD::SensorShellAgent::msgRcvd (this=0x9c1e5a8) at /home/kde-devel/kde/src/KDE/kdebase/workspace/ksysguard/gui/ksgrd/SensorShellAgent.cc:91
#9  0xa8a10295 in KSGRD::SensorShellAgent::qt_metacall (this=0x9c1e5a8, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfd3b09c)
    at /home/kde-devel/kde/build/KDE/kdebase/workspace/ksysguard/gui/ksgrd/SensorShellAgent.moc:71
#10 0xb666bb9b in QMetaObject::activate (sender=0x9b65870, from_signal_index=13, to_signal_index=13, argv=0x0) at kernel/qobject.cpp:3061
#11 0xb666cf6b in QMetaObject::activate (sender=0x9b65870, m=0xb670fe8c, local_signal_index=5, argv=0x0) at kernel/qobject.cpp:3136
#12 0xb65fa4ad in QProcess::readyReadStandardOutput (this=0x9b65870) at .moc/debug-shared/moc_qprocess.cpp:156
#13 0xb65fc752 in QProcessPrivate::_q_canReadStandardOutput (this=0x9bf0ae0) at io/qprocess.cpp:559
#14 0xb65fca52 in QProcess::qt_metacall (this=0x9b65870, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbfd3b28c) at .moc/debug-shared/moc_qprocess.cpp:101
#15 0xb7362a4a in KProcess::qt_metacall (this=0x9b65870, _c=QMetaObject::InvokeMetaMethod, _id=17, _a=0xbfd3b28c) at /home/kde-devel/kde/build/KDE/kdelibs/kdecore/kprocess.moc:62
#16 0xb666bb9b in QMetaObject::activate (sender=0x9b32718, from_signal_index=4, to_signal_index=4, argv=0xbfd3b28c) at kernel/qobject.cpp:3061
#17 0xb666cf6b in QMetaObject::activate (sender=0x9b32718, m=0xb67118b0, local_signal_index=0, argv=0xbfd3b28c) at kernel/qobject.cpp:3136
#18 0xb66a99fc in QSocketNotifier::activated (this=0x9b32718, _t1=26) at .moc/debug-shared/moc_qsocketnotifier.cpp:83
#19 0xb66739c9 in QSocketNotifier::event (this=0x9b32718, e=0xbfd3b6f8) at kernel/qsocketnotifier.cpp:311
#20 0xb68d7015 in QApplicationPrivate::notify_helper (this=0x98e0c50, receiver=0x9b32718, e=0xbfd3b6f8) at kernel/qapplication.cpp:4051
#21 0xb68d7337 in QApplication::notify (this=0x98b7a30, receiver=0x9b32718, e=0xbfd3b6f8) at kernel/qapplication.cpp:3598
#22 0xb769805d in KApplication::notify (this=0x98b7a30, receiver=0x9b32718, event=0xbfd3b6f8) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/kernel/kapplication.cpp:307
#23 0xb66555a3 in QCoreApplication::notifyInternal (this=0x98b7a30, receiver=0x9b32718, event=0xbfd3b6f8) at kernel/qcoreapplication.cpp:590
#24 0xb68d3a85 in QCoreApplication::sendEvent (receiver=0x9b32718, event=0xbfd3b6f8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:208
#25 0xb66852d8 in socketNotifierSourceDispatch (source=0x98e4ac8) at kernel/qeventdispatcher_glib.cpp:104
#26 0xb520e6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0xb5211da3 in ?? () from /usr/lib/libglib-2.0.so.0
#28 0xb5211f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0xb66843d2 in QEventDispatcherGlib::processEvents (this=0x98e01c0, flags={i = -1076643756}) at kernel/qeventdispatcher_glib.cpp:318
#30 0xb6985398 in QGuiEventDispatcherGlib::processEvents (this=0x98e01c0, flags={i = -1076643708}) at kernel/qguieventdispatcher_glib.cpp:197
#31 0xb6652594 in QEventLoop::processEvents (this=0xbfd3b910, flags={i = -1076643632}) at kernel/qeventloop.cpp:144
#32 0xb66527ee in QEventLoop::exec (this=0xbfd3b910, flags={i = -1076643560}) at kernel/qeventloop.cpp:191
#33 0xb6655d7b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:872
#34 0xb68d6d2e in QApplication::exec () at kernel/qapplication.cpp:3526
#35 0xb7edf020 in kdemain (argc=1, argv=0xbfd3bac4) at /home/kde-devel/kde/src/KDE/kdebase/workspace/plasma/shells/desktop/main.cpp:50
#36 0x08048772 in main (argc=168450072, argv=0x7000000) at /home/kde-devel/kde/build/KDE/kdebase/workspace/plasma/shells/desktop/plasma-desktop_dummy.cpp:3