Application: kmail (4.8.0)
KDE Platform Version: 4.8.1 (4.8.1)
Qt Version: 4.8.0
Operating System: Linux 3.0.0-17-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
I just opened Kmail and after recieving new mail I tried to open it.
Kmail hangs a few seconds and than crashed.
This was the first thing I did after booting my pc.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
__lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
	in ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
[Current thread is 1 (Thread 0x7fe03f9877c0 (LWP 2515))]

Thread 8 (Thread 0x7fe019260700 (LWP 2520)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fe031d9dc2c in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fe031d9dd59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fe03a88befc in start_thread (arg=0x7fe019260700) at pthread_create.c:304
#4  0x00007fe03ccf659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fe01895f700 (LWP 2521)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007fe03cc9362f in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fe03cc919c1 in __GI___libc_free (mem=0x7fe03cfaf1c0) at malloc.c:3736
#3  0x00007fe03d67b8d4 in QTimerInfoList::unregisterTimer (this=0x157eeb0, timerId=704643089) at kernel/qeventdispatcher_unix.cpp:507
#4  0x00007fe03d668f51 in stop (this=0x1594930) at kernel/qtimer.cpp:266
#5  QTimer::stop (this=0x1594930) at kernel/qtimer.cpp:263
#6  0x00007fe03d669055 in QTimer::timerEvent (this=0x1594930, e=<optimized out>) at kernel/qtimer.cpp:279
#7  0x00007fe03d6648d9 in QObject::event (this=0x1594930, e=<optimized out>) at kernel/qobject.cpp:1157
#8  0x00007fe03db6e104 in notify_helper (e=0x7fe01895eb50, receiver=0x1594930, this=0xf5b9c0) at kernel/qapplication.cpp:4555
#9  QApplicationPrivate::notify_helper (this=0xf5b9c0, receiver=0x1594930, e=0x7fe01895eb50) at kernel/qapplication.cpp:4527
#10 0x00007fe03db72f83 in QApplication::notify (this=0x7fff7a3de7d0, receiver=0x1594930, e=0x7fe01895eb50) at kernel/qapplication.cpp:4416
#11 0x00007fe03f39c9a6 in KApplication::notify (this=0x7fff7a3de7d0, receiver=0x1594930, event=0x7fe01895eb50) at ../../kdeui/kernel/kapplication.cpp:311
#12 0x00007fe03d64b5fc in QCoreApplication::notifyInternal (this=0x7fff7a3de7d0, receiver=0x1594930, event=0x7fe01895eb50) at kernel/qcoreapplication.cpp:876
#13 0x00007fe03d67c9a2 in sendEvent (event=0x7fe01895eb50, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#14 QTimerInfoList::activateTimers (this=0x157eeb0) at kernel/qeventdispatcher_unix.cpp:611
#15 0x00007fe03d67a36d in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#16 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#17 0x00007fe03d67a391 in idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:233
#18 0x00007fe035685a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fe035686258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fe035686429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fe03d67ab9f in QEventDispatcherGlib::processEvents (this=0x157d420, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#22 0x00007fe03d64a3e2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#23 0x00007fe03d64a637 in QEventLoop::exec (this=0x7fe01895edc0, flags=...) at kernel/qeventloop.cpp:204
#24 0x00007fe03d54a067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#25 0x00007fe03d54d08b in QThreadPrivate::start (arg=0x157cc90) at thread/qthread_unix.cpp:298
#26 0x00007fe03a88befc in start_thread (arg=0x7fe01895f700) at pthread_create.c:304
#27 0x00007fe03ccf659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#28 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fdfd15c1700 (LWP 2603)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007fe03cc9362f in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fe03cc919c1 in __GI___libc_free (mem=0x7fe03cfaf1c0) at malloc.c:3736
#3  0x00007fe03d67a2a5 in socketNotifierSourceCheck (source=0x1a75490) at kernel/qeventdispatcher_glib.cpp:92
#4  0x00007fe035685734 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe035685f82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fe035686429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fe03d67ab9f in QEventDispatcherGlib::processEvents (this=0x1a6f0a0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#8  0x00007fe03d64a3e2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#9  0x00007fe03d64a637 in QEventLoop::exec (this=0x7fdfd15c0d90, flags=...) at kernel/qeventloop.cpp:204
#10 0x00007fe03d54a067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#11 0x00007fe03d62a17f in QInotifyFileSystemWatcherEngine::run (this=0x1a6f000) at io/qfilesystemwatcher_inotify.cpp:248
#12 0x00007fe03d54d08b in QThreadPrivate::start (arg=0x1a6f000) at thread/qthread_unix.cpp:298
#13 0x00007fe03a88befc in start_thread (arg=0x7fdfd15c1700) at pthread_create.c:304
#14 0x00007fe03ccf659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fdfd2cde700 (LWP 2847)):
[KCrash Handler]
#6  malloc_consolidate (av=0x7fe03cfaf1c0) at malloc.c:5153
#7  0x00007fe03cc8ea4f in malloc_consolidate (av=0x7fe03cfaf1c0) at malloc.c:5115
#8  _int_malloc (av=0x7fe03cfaf1c0, bytes=65536) at malloc.c:4373
#9  0x00007fe03cc913cd in __GI___libc_malloc (bytes=65536) at malloc.c:3660
#10 0x00007fe03d54f088 in QByteArray::realloc (this=0x7fe01400e1c8, alloc=65504) at tools/qbytearray.cpp:1452
#11 0x00007fe03d54f1a9 in QByteArray::resize (this=0x7fe01400e1c8, size=32768) at tools/qbytearray.cpp:1420
#12 0x00007fe03bd4ef84 in reserve (bytes=155, this=0x7fe014003020) at ../../include/QtCore/private/../../../src/corelib/tools/qringbuffer_p.h:158
#13 QAbstractSocketPrivate::readFromSocket (this=0x7fe014002ec0) at socket/qabstractsocket.cpp:1163
#14 0x00007fe03bd4f604 in QAbstractSocketPrivate::canReadNotification (this=0x7fe014002ec0) at socket/qabstractsocket.cpp:625
#15 0x00007fe03bd516d0 in QAbstractSocket::waitForReadyRead (this=0x7fe014002b78, msecs=600000) at socket/qabstractsocket.cpp:1902
#16 0x00007fe02f2d2019 in ?? () from /usr/lib/libsopranoclient.so.1
#17 0x00007fe02f2d6296 in ?? () from /usr/lib/libsopranoclient.so.1
#18 0x00007fe02f2d5c95 in ?? () from /usr/lib/libsopranoclient.so.1
#19 0x00007fe036386d37 in Soprano::QueryResultIterator::binding(QString const&) const () from /usr/lib/libsoprano.so.4
#20 0x00007fe036386ec9 in Soprano::QueryResultIterator::operator[](QString) const () from /usr/lib/libsoprano.so.4
#21 0x00007fe0360b717c in Nepomuk::ResourceData::load (this=0x1bdbc80) at ../../nepomuk/core/resourcedata.cpp:419
#22 0x00007fe0360b795c in Nepomuk::ResourceData::property (this=0x1bdbc80, uri=...) at ../../nepomuk/core/resourcedata.cpp:265
#23 0x00007fe0360cb893 in Nepomuk::Resource::property (this=0x7fdfd2cddcc0, uri=...) at ../../nepomuk/core/resource.cpp:301
#24 0x00007fe03942a7da in MessageCore::NepomukResourceRetrieverRunnable::run (this=0x1b10f20) at ../../messagecore/asyncnepomukresourceretriever.cpp:47
#25 0x00007fe03d5405b2 in QThreadPoolThread::run (this=0x163c730) at concurrent/qthreadpool.cpp:107
#26 0x00007fe03d54d08b in QThreadPrivate::start (arg=0x163c730) at thread/qthread_unix.cpp:298
#27 0x00007fe03a88befc in start_thread (arg=0x7fdfd2cde700) at pthread_create.c:304
#28 0x00007fe03ccf659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#29 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fdfd0b0c700 (LWP 2849)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007fe03cc9362f in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fe03cc919c1 in __GI___libc_free (mem=0x7fe03cfaf1c0) at malloc.c:3736
#3  0x00007fe03bd4ffeb in QAbstractSocket::disconnectFromHostImplementation (this=0x1bdba98) at socket/qabstractsocket.cpp:2510
#4  0x00007fe03bd5067d in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at .moc/release-shared/moc_qabstractsocket.cpp:168
#5  QAbstractSocket::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/release-shared/moc_qabstractsocket.cpp:152
#6  0x00007fe03d653661 in QMetaMethod::invoke (this=0x7fdfd0b0b8c0, object=0x1bdba98, connectionType=Qt::DirectConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1641
#7  0x00007fe03d655970 in QMetaObject::invokeMethod (obj=0x1bdba98, member=<optimized out>, type=Qt::DirectConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#8  0x00007fe03bd4b8b4 in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., type=Qt::DirectConnection, member=0x7fe03bd86820 "disconnectFromHostImplementation", obj=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs.h:418
#9  QAbstractSocket::disconnectFromHost (this=<optimized out>) at socket/qabstractsocket.cpp:2474
#10 0x00007fe03bd4b9e7 in QAbstractSocket::close (this=0x1bdba98) at socket/qabstractsocket.cpp:2452
#11 0x00007fe03bd5ce7b in QLocalSocket::close (this=<optimized out>) at socket/qlocalsocket_unix.cpp:436
#12 0x00007fe03bd5593b in QLocalSocket::~QLocalSocket (this=0x1bd97e0, __in_chrg=<optimized out>) at socket/qlocalsocket.cpp:348
#13 0x00007fe03bd55989 in QLocalSocket::~QLocalSocket (this=0x1bd97e0, __in_chrg=<optimized out>) at socket/qlocalsocket.cpp:353
#14 0x00007fe02f2d3d60 in ?? () from /usr/lib/libsopranoclient.so.1
#15 0x00007fe02f2d3df9 in ?? () from /usr/lib/libsopranoclient.so.1
#16 0x00007fe03d54b360 in QThreadStorageData::finish (p=0x1bdb798) at thread/qthreadstorage.cpp:203
#17 0x00007fe03d54beb7 in QThreadPrivate::finish (arg=0x1bdc1a0) at thread/qthread_unix.cpp:321
#18 0x00007fe03d54d093 in ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at /usr/include/pthread.h:545
#19 ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at thread/qthread_unix.cpp:716
#20 QThreadPrivate::start (arg=0x1bdc1a0) at thread/qthread_unix.cpp:273
#21 0x00007fe03a88befc in start_thread (arg=0x7fdfd0b0c700) at pthread_create.c:304
#22 0x00007fe03ccf659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#23 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fdfce48e700 (LWP 2856)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007fe03cc9362f in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fe03cc919c1 in __GI___libc_free (mem=0x7fe03cfaf1c0) at malloc.c:3736
#3  0x00007fe0356814e1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe03d67a937 in QEventDispatcherGlib::~QEventDispatcherGlib (this=0x1d43280, __in_chrg=<optimized out>) at kernel/qeventdispatcher_glib.cpp:375
#5  0x00007fe03d67ab19 in QEventDispatcherGlib::~QEventDispatcherGlib (this=0x1d43280, __in_chrg=<optimized out>) at kernel/qeventdispatcher_glib.cpp:403
#6  0x00007fe03d54bf35 in QThreadPrivate::finish (arg=<optimized out>) at thread/qthread_unix.cpp:330
#7  0x00007fe03d54d093 in ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at /usr/include/pthread.h:545
#8  ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at thread/qthread_unix.cpp:716
#9  QThreadPrivate::start (arg=0x1d42ce0) at thread/qthread_unix.cpp:273
#10 0x00007fe03a88befc in start_thread (arg=0x7fdfce48e700) at pthread_create.c:304
#11 0x00007fe03ccf659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fdfcdc67700 (LWP 2857)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007fe03cc9362f in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fe03cc919c1 in __GI___libc_free (mem=0x7fe03cfaf1c0) at malloc.c:3736
#3  0x00007fe0356814e1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe03d67a937 in QEventDispatcherGlib::~QEventDispatcherGlib (this=0x10bdfd0, __in_chrg=<optimized out>) at kernel/qeventdispatcher_glib.cpp:375
#5  0x00007fe03d67ab19 in QEventDispatcherGlib::~QEventDispatcherGlib (this=0x10bdfd0, __in_chrg=<optimized out>) at kernel/qeventdispatcher_glib.cpp:403
#6  0x00007fe03d54bf35 in QThreadPrivate::finish (arg=<optimized out>) at thread/qthread_unix.cpp:330
#7  0x00007fe03d54d093 in ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at /usr/include/pthread.h:545
#8  ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at thread/qthread_unix.cpp:716
#9  QThreadPrivate::start (arg=0x7fe01401f210) at thread/qthread_unix.cpp:273
#10 0x00007fe03a88befc in start_thread (arg=0x7fdfcdc67700) at pthread_create.c:304
#11 0x00007fe03ccf659d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe03f9877c0 (LWP 2515)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007fe03cc9362f in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fe03cc919c1 in __GI___libc_free (mem=0x7fe03cfaf1c0) at malloc.c:3736
#3  0x00007fe03d67a2a5 in socketNotifierSourceCheck (source=0xf5f290) at kernel/qeventdispatcher_glib.cpp:92
#4  0x00007fe035685734 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe035685f82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fe035686429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fe03d67ab9f in QEventDispatcherGlib::processEvents (this=0xf02b00, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#8  0x00007fe03dc1321e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#9  0x00007fe03d64a3e2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007fe03d64a637 in QEventLoop::exec (this=0x7fff7a3de6b0, flags=...) at kernel/qeventloop.cpp:204
#11 0x00007fe03d64f6c7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#12 0x0000000000402bd3 in main (argc=<optimized out>, argv=<optimized out>) at ../../kmail/main.cpp:145

This bug may be a duplicate of or related to bug 294698.

Possible duplicates by query: bug 296098, bug 295989, bug 295872, bug 295846, bug 295725.

Reported using DrKonqi