Application: kmail (4.8.4)
KDE Platform Version: 4.8.4 (4.8.4) "release 513"
Qt Version: 4.8.2
Operating System: Linux 3.1.10-1.16-desktop x86_64
Distribution: "openSUSE 12.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I've hit the ctrl+Q keyboard sequence and kmail2 closed. 
Then in a second I've receive the message. Nothing special between yesterday and today ...

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f90940bc780 (LWP 24775))]

Thread 3 (Thread 0x7f907594d700 (LWP 24790)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f908589cc12 in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f908623b1a0) at ../../../Source/JavaScriptCore/wtf/FastMalloc.cpp:2495
#2  0x00007f908589cc49 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../../../Source/JavaScriptCore/wtf/FastMalloc.cpp:1618
#3  0x00007f908f203f05 in start_thread (arg=0x7f907594d700) at pthread_create.c:301
#4  0x00007f90913ff10d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7f902f359700 (LWP 27074)):
#0  0x00007f90913f5ff3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f90895b9a98 in g_main_context_poll (n_fds=1, fds=0x7f902809e630, timeout=-1, context=0x7f90280014c0, priority=<optimized out>) at gmain.c:3386
#2  g_main_context_iterate (context=0x7f90280014c0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3068
#3  0x00007f90895b9f59 in g_main_context_iteration (context=0x7f90280014c0, may_block=1) at gmain.c:3136
#4  0x00007f9092a5de36 in QEventDispatcherGlib::processEvents (this=0x7f90280008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f9092a2d842 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f9092a2da97 in QEventLoop::exec (this=0x7f902f358dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f909292d5f7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f9092a0d62f in QInotifyFileSystemWatcherEngine::run (this=0x19ecdb0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f909293061b in QThreadPrivate::start (arg=0x19ecdb0) at thread/qthread_unix.cpp:307
#10 0x00007f908f203f05 in start_thread (arg=0x7f902f359700) at pthread_create.c:301
#11 0x00007f90913ff10d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f90940bc780 (LWP 24775)):
[KCrash Handler]
#6  QMutex::lock (this=0xd8) at thread/qmutex.cpp:150
#7  0x00007f908a1ac130 in Nepomuk::ResourceData::resetAll (this=0x7f9020a15f30, isDelete=true) at /usr/src/debug/kdelibs-4.8.4/nepomuk/core/resourcedata.cpp:167
#8  0x00007f908a1acf3e in Nepomuk::ResourceData::~ResourceData (this=0x7f9020a15f30, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.8.4/nepomuk/core/resourcedata.cpp:106
#9  0x00007f908a1b4f26 in Nepomuk::ResourceManagerPrivate::cleanupCache (this=<optimized out>, num=-1) at /usr/src/debug/kdelibs-4.8.4/nepomuk/core/resourcemanager.cpp:194
#10 0x00007f908a1b516c in Nepomuk::ResourceManager::~ResourceManager (this=0xc0c9c0, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.8.4/nepomuk/core/resourcemanager.cpp:292
#11 0x00007f908a1b5239 in Nepomuk::ResourceManager::~ResourceManager (this=0xc0c9c0, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.8.4/nepomuk/core/resourcemanager.cpp:299
#12 0x00007f9092a412f5 in QObjectPrivate::deleteChildren (this=0x673840) at kernel/qobject.cpp:1917
#13 0x00007f9092a4755c in QObject::~QObject (this=0x7fff81007930, __in_chrg=<optimized out>) at kernel/qobject.cpp:927
#14 0x00007f9091dbba1e in QApplication::~QApplication (this=0x7fff81007930, __in_chrg=<optimized out>) at kernel/qapplication.cpp:1095
#15 0x0000000000402e27 in ~KMailApplication (this=0x7fff81007930, __in_chrg=<optimized out>) at /usr/src/debug/kdepim-4.8.4/kmail/main.cpp:42
#16 main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kdepim-4.8.4/kmail/main.cpp:113

Reported using DrKonqi