Application: kdevelop (4.4.1)
KDE Platform Version: 4.10.5
Qt Version: 4.8.4
Operating System: Linux 3.8.0-19-lowlatency x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
I opened a normal KDevelop project using KDevelop from the Ubuntu Studio 13.04 repo, under both XFCE and Unity. The application have worked for some time before this happened. KDevelop asks me to if it should delete the cache after to crashes, but that does not help.

I have experienced a lot similar crashes on all three of my machines running Ubuntu Studio, but I do not know if they are related or not. I will take a closer look at that the next time a crash happens.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f19e4a667c0 (LWP 1632))]

Thread 9 (Thread 0x7f19c3d34700 (LWP 1634)):
#0  __GI___pthread_mutex_lock (mutex=0x7f19bc00cea0) at pthread_mutex_lock.c:95
#1  0x00007f19db6b45c1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f19db6751c2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f19db6756ba in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f19cb7cb4f6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f19db698eb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f19d31c51b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#7  0x00007f19e05baf8e in start_thread (arg=0x7f19c3d34700) at pthread_create.c:311
#8  0x00007f19e1251e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 8 (Thread 0x7f19b8dea700 (LWP 1635)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f19e254c0a7 in wait (time=1000, this=0x320c210) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3225440, time=1000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f19de6a727b in ?? () from /usr/lib/libkdevplatformlanguage.so.6
#4  0x00007f19e254bbec in QThreadPrivate::start (arg=0x3225420) at thread/qthread_unix.cpp:338
#5  0x00007f19d31c51b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#6  0x00007f19e05baf8e in start_thread (arg=0x7f19b8dea700) at pthread_create.c:311
#7  0x00007f19e1251e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 7 (Thread 0x7f199f310700 (LWP 1638)):
#0  0x00007f19db6b4359 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f19db6b45b9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f19db674493 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f19db675188 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f19db675304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f19e2677036 in QEventDispatcherGlib::processEvents (this=0x7f19980008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f19e264738f in QEventLoop::processEvents (this=this@entry=0x7f199f30fcd0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f19e2647618 in QEventLoop::exec (this=this@entry=0x7f199f30fcd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f19e2549410 in QThread::exec (this=this@entry=0x3de4360) at thread/qthread.cpp:542
#9  0x00007f19e2628edf in QInotifyFileSystemWatcherEngine::run (this=0x3de4360) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007f19e254bbec in QThreadPrivate::start (arg=0x3de4360) at thread/qthread_unix.cpp:338
#11 0x00007f19d31c51b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#12 0x00007f19e05baf8e in start_thread (arg=0x7f199f310700) at pthread_create.c:311
#13 0x00007f19e1251e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7f199eb0f700 (LWP 1639)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f19dda28e77 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f19dda28ea9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f19d31c51b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#4  0x00007f19e05baf8e in start_thread (arg=0x7f199eb0f700) at pthread_create.c:311
#5  0x00007f19e1251e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f199ce7d700 (LWP 1654)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f19d86f3585 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f19d86f35d9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f19d31c51b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#4  0x00007f19e05baf8e in start_thread (arg=0x7f199ce7d700) at pthread_create.c:311
#5  0x00007f19e1251e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f199d67e700 (LWP 1655)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f19d8439a09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f19d8721cee in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f19d31c51b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#4  0x00007f19e05baf8e in start_thread (arg=0x7f199d67e700) at pthread_create.c:311
#5  0x00007f19e1251e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f193c9ba700 (LWP 1656)):
#0  0x00007f19e12453cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f19db6751dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f19db675304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f19e2677036 in QEventDispatcherGlib::processEvents (this=0x7f19900028c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f19e264738f in QEventLoop::processEvents (this=this@entry=0x7f193c9b9d00, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f19e2647618 in QEventLoop::exec (this=this@entry=0x7f193c9b9d00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f19e2549410 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#7  0x00007f19e254bbec in QThreadPrivate::start (arg=0x4720410) at thread/qthread_unix.cpp:338
#8  0x00007f19d31c51b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#9  0x00007f19e05baf8e in start_thread (arg=0x7f193c9ba700) at pthread_create.c:311
#10 0x00007f19e1251e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f193b727700 (LWP 1695)):
[KCrash Handler]
#6  QHash<QString, QHashDummyValue>::findNode (this=this@entry=0x7f1934010178, akey=..., ahp=ahp@entry=0x0) at /usr/include/qt4/QtCore/qhash.h:884
#7  0x00007f19a5fb7938 in contains (akey=..., this=0x7f1934010178) at /usr/include/qt4/QtCore/qhash.h:874
#8  contains (value=..., this=0x7f1934010178) at /usr/include/qt4/QtCore/qset.h:91
#9  VariableMap::insert (this=this@entry=0x7f1934002c78, varName=..., value=..., parentScope=parentScope@entry=false) at /home/hakon/Src/kdevelop-4.5.1/projectmanagers/cmake/parser/variablemap.cpp:39
#10 0x00007f19a5fbe622 in CMakeParserUtils::includeScript (file=..., parent=..., data=data@entry=0x7f1934002c48, sourcedir=..., env=...) at /home/hakon/Src/kdevelop-4.5.1/projectmanagers/cmake/parser/cmakeparserutils.cpp:157
#11 0x00007f199c13aaa4 in CMakeManager::includeScript (this=this@entry=0x44f0550, file=..., project=project@entry=0x5ba8a00, dir=..., parent=...) at ../../../projectmanagers/cmake/cmakemanager.cpp:669
#12 0x00007f199c13b40a in CMakeManager::initializeProject (this=this@entry=0x44f0550, project=0x5ba8a00) at ../../../projectmanagers/cmake/cmakemanager.cpp:549
#13 0x00007f199c13e065 in CMakeManager::parse (this=0x44f0550, item=0x52dcc60) at ../../../projectmanagers/cmake/cmakemanager.cpp:731
#14 0x00007f19dec8fe7b in ?? () from /usr/lib/libkdevplatformproject.so.6
#15 0x00007f19dec8fc56 in ?? () from /usr/lib/libkdevplatformproject.so.6
#16 0x00007f19e253f55d in QThreadPoolThread::run (this=0x52de870) at concurrent/qthreadpool.cpp:107
#17 0x00007f19e254bbec in QThreadPrivate::start (arg=0x52de870) at thread/qthread_unix.cpp:338
#18 0x00007f19d31c51b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#19 0x00007f19e05baf8e in start_thread (arg=0x7f193b727700) at pthread_create.c:311
#20 0x00007f19e1251e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f19e4a667c0 (LWP 1632)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f19e254c14b in wait (time=18446744073709551615, this=0x5d4ca30) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x5592620, mutex=0x55925f8, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f19e253ed2f in QThreadPoolPrivate::waitForDone (this=0x5592570, msecs=msecs@entry=-1) at concurrent/qthreadpool.cpp:298
#4  0x00007f19e25407dd in QThreadPool::~QThreadPool (this=0x532a420, __in_chrg=<optimized out>) at concurrent/qthreadpool.cpp:440
#5  0x00007f19e2540819 in QThreadPool::~QThreadPool (this=0x532a420, __in_chrg=<optimized out>) at concurrent/qthreadpool.cpp:442
#6  0x00007f19e2540845 in QGlobalStaticDeleter<QThreadPool>::~QGlobalStaticDeleter (this=0x7f19e29a6008 <theInstance()::cleanup>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qglobal.h:1950
#7  0x00007f19e1194121 in __run_exit_handlers (status=1, listp=0x7f19e15196a8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:77
#8  0x00007f19e11941a5 in __GI_exit (status=<optimized out>) at exit.c:99
#9  0x00007f19cac54284 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
#10 0x00007f19e2e47f38 in KApplication::xioErrhandler (this=0x7fff8bca04d0, dpy=0x1adbc30) at ../../kdeui/kernel/kapplication.cpp:419
#11 0x00007f19dc9065be in _XIOError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#12 0x00007f19dc90408d in _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#13 0x00007f19dc8f565b in XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#14 0x00007f19e1a93bdc in x11EventSourceCheck (s=0x1ab28a0) at kernel/qguieventdispatcher_glib.cpp:85
#15 0x00007f19db674c69 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f19db675175 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f19db675304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f19e2677016 in QEventDispatcherGlib::processEvents (this=0x1a77460, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#19 0x00007f19e1a941ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#20 0x00007f19e264738f in QEventLoop::processEvents (this=this@entry=0x7fff8bc9ff90, flags=...) at kernel/qeventloop.cpp:149
#21 0x00007f19e2647618 in QEventLoop::exec (this=this@entry=0x7fff8bc9ff90, flags=...) at kernel/qeventloop.cpp:204
#22 0x00007f19e264ccf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#23 0x00007f19e19ecffc in QApplication::exec () at kernel/qapplication.cpp:3828
#24 0x000000000040e71a in main (argc=<optimized out>, argv=<optimized out>) at ../../app/main.cpp:519

Reported using DrKonqi