Application: kcachegrind (0.7kde)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-43-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed:

When I loaded a cachegrind file (created from using the xDebug extenstion for PHP v 5.4), selected a function, and then clicked on the "Call Graph" tab the program crashed/quit. The cachegrind file itself is quite large (~3.2 GB). I'm running Kubuntu v12.04 LTS.

The crash can be reproduced every time.

-- Backtrace:
Application: KCachegrind (kcachegrind), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2b96180780 (LWP 3056))]

Thread 3 (Thread 0x7f2b840e6700 (LWP 3057)):
#0  0x00007fff6cae298f in clock_gettime ()
#1  0x00007f2b8e9b615d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f2b93c47bb4 in do_gettime (frac=0x7f2b840e5b98, sec=0x7f2b840e5b90) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f2b93d1fb8d in QTimerInfoList::updateCurrentTime (this=0x7f2b7c002860) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f2b93d1fec3 in QTimerInfoList::timerWait (this=0x7f2b7c002860, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007f2b93d1e97c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f2b840e5c6c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f2b93d1ea25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f2b905df846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f2b905dff5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f2b905e0164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f2b93d1f426 in QEventDispatcherGlib::processEvents (this=0x7f2b7c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007f2b93ceec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f2b93ceeed7 in QEventLoop::exec (this=0x7f2b840e5dd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007f2b93bedfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007f2b93cce9ff in QInotifyFileSystemWatcherEngine::run (this=0x10c8a60) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f2b93bf0fcb in QThreadPrivate::start (arg=0x10c8a60) at thread/qthread_unix.cpp:298
#17 0x00007f2b90aace9a in start_thread (arg=0x7f2b840e6700) at pthread_create.c:308
#18 0x00007f2b932adccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f2b8322c700 (LWP 3059)):
#0  0x00007fff6cae298f in clock_gettime ()
#1  0x00007f2b8e9b615d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f2b93c47bb4 in do_gettime (frac=0x7f2b8322bb98, sec=0x7f2b8322bb90) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f2b93d1fb8d in QTimerInfoList::updateCurrentTime (this=0x7f2b74002660) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f2b93d1fec3 in QTimerInfoList::timerWait (this=0x7f2b74002660, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007f2b93d1e97c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f2b8322bc6c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f2b93d1ea25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f2b905df846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f2b905dff5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f2b905e0164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f2b93d1f426 in QEventDispatcherGlib::processEvents (this=0x7f2b740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007f2b93ceec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f2b93ceeed7 in QEventLoop::exec (this=0x7f2b8322bdd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007f2b93bedfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007f2b93cce9ff in QInotifyFileSystemWatcherEngine::run (this=0x964b30) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f2b93bf0fcb in QThreadPrivate::start (arg=0x964b30) at thread/qthread_unix.cpp:298
#17 0x00007f2b90aace9a in start_thread (arg=0x7f2b8322c700) at pthread_create.c:308
#18 0x00007f2b932adccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f2b96180780 (LWP 3056)):
[KCrash Handler]
#6  data (this=0x8) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:135
#7  qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at ../../include/QtCore/../../src/corelib/global/qglobal.h:2430
#8  d_func (this=0x0) at io/qprocess.h:227
#9  QProcess::closeWriteChannel (this=0x0) at io/qprocess.cpp:1290
#10 0x000000000047cb72 in CallGraphView::refresh (this=0xc8c580) at ../../../kcachegrind/libviews/callgraphview.cpp:2078
#11 0x000000000047d2e2 in CallGraphView::doUpdate (this=0xc8c580, changeType=<optimized out>) at ../../../kcachegrind/libviews/callgraphview.cpp:1927
#12 0x00007f2b93d04281 in QMetaObject::activate (sender=0xc84f70, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#13 0x00007f2b93d09179 in QObject::event (this=0xc84f70, e=<optimized out>) at kernel/qobject.cpp:1157
#14 0x00007f2b94966894 in notify_helper (e=0x7fff6ca5ae20, receiver=0xc84f70, this=0x8a67f0) at kernel/qapplication.cpp:4559
#15 QApplicationPrivate::notify_helper (this=0x8a67f0, receiver=0xc84f70, e=0x7fff6ca5ae20) at kernel/qapplication.cpp:4531
#16 0x00007f2b9496b713 in QApplication::notify (this=0x7fff6ca5b0f0, receiver=0xc84f70, e=0x7fff6ca5ae20) at kernel/qapplication.cpp:4420
#17 0x00007f2b956a03f6 in KApplication::notify (this=0x7fff6ca5b0f0, receiver=0xc84f70, event=0x7fff6ca5ae20) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007f2b93cefe9c in QCoreApplication::notifyInternal (this=0x7fff6ca5b0f0, receiver=0xc84f70, event=0x7fff6ca5ae20) at kernel/qcoreapplication.cpp:876
#19 0x00007f2b93d211f2 in sendEvent (event=0x7fff6ca5ae20, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 QTimerInfoList::activateTimers (this=0x8a0110) at kernel/qeventdispatcher_unix.cpp:611
#21 0x00007f2b93d1ec0d in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#22 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#23 0x00007f2b905dfd53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f2b905e00a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f2b905e0164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f2b93d1f3bf in QEventDispatcherGlib::processEvents (this=0x8804b0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#27 0x00007f2b94a0ed5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007f2b93ceec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007f2b93ceeed7 in QEventLoop::exec (this=0x7fff6ca5b080, flags=...) at kernel/qeventloop.cpp:204
#30 0x00007f2b93cf3f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#31 0x000000000041cc11 in main (argc=1, argv=0x7fff6ca5b3d8) at ../../../kcachegrind/kcachegrind/main.cpp:91

Reported using DrKonqi