Bug 299581

Application: kmail (4.8.2)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:  Not using system.  System was up, pretty much idle with lots of windows open on multiple desktops.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:93
[Current thread is 1 (Thread 0x7ff533c717c0 (LWP 6150))]

Thread 4 (Thread 0x7ff511c24700 (LWP 8564)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff525f6ddec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007ff525f6df19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007ff52ea9fe9a in start_thread (arg=0x7ff511c24700) at pthread_create.c:308
#4  0x00007ff530fd04bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ff511323700 (LWP 8565)):
[KCrash Handler]
#6  _int_free (av=0x7ff531294720, p=0x12769a0, have_lock=0) at malloc.c:4005
#7  0x00007ff531877612 in QString::free (d=0x12769b0) at tools/qstring.cpp:1235
#8  0x00007ff52f626a19 in ~QString (this=0x187b590, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qstring.h:880
#9  QDBusMessagePrivate::~QDBusMessagePrivate (this=0x187b560, __in_chrg=<optimized out>) at qdbusmessage.cpp:72
#10 0x00007ff52f626b7f in ~QDBusMessage (this=<optimized out>, __in_chrg=<optimized out>) at qdbusmessage.cpp:537
#11 QDBusMessage::~QDBusMessage (this=<optimized out>, __in_chrg=<optimized out>) at qdbusmessage.cpp:534
#12 0x00007ff52f622fd4 in ~QDBusCallDeliveryEvent (this=0x19b7a80, __in_chrg=<optimized out>) at qdbusintegrator_p.h:93
#13 QDBusCallDeliveryEvent::~QDBusCallDeliveryEvent (this=0x19b7a80, __in_chrg=<optimized out>) at qdbusintegrator_p.h:93
#14 0x00007ff53192fc73 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1274590) at kernel/qcoreapplication.cpp:1516
#15 0x00007ff53195af93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#16 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#17 0x00007ff529879c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007ff52987a060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007ff52987a124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007ff53195b3bf in QEventDispatcherGlib::processEvents (this=0x7ff50c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#21 0x00007ff53192ac82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007ff53192aed7 in QEventLoop::exec (this=0x7ff511322dc0, flags=...) at kernel/qeventloop.cpp:204
#23 0x00007ff531829fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#24 0x00007ff53182cfcb in QThreadPrivate::start (arg=0x1274470) at thread/qthread_unix.cpp:298
#25 0x00007ff52ea9fe9a in start_thread (arg=0x7ff511323700) at pthread_create.c:308
#26 0x00007ff530fd04bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#27 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ff4c3fff700 (LWP 8573)):
#0  0x00007ff530fc4b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ff529879ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff52987a124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff53195b426 in QEventDispatcherGlib::processEvents (this=0x7ff4b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007ff53192ac82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ff53192aed7 in QEventLoop::exec (this=0x7ff4c3ffed90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007ff531829fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007ff53190a9ff in QInotifyFileSystemWatcherEngine::run (this=0x14a75d0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007ff53182cfcb in QThreadPrivate::start (arg=0x14a75d0) at thread/qthread_unix.cpp:298
#9  0x00007ff52ea9fe9a in start_thread (arg=0x7ff4c3fff700) at pthread_create.c:308
#10 0x00007ff530fd04bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff533c717c0 (LWP 6150)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:93
#1  0x00007ff530f62cb1 in _L_lock_10627 () at malloc.c:5209
#2  0x00007ff530f60a37 in __GI___libc_malloc (bytes=140691068503840) at malloc.c:2921
#3  0x00007ff533ac7900 in _dl_map_object_deps (map=0x7ff533cb19e8, preloads=<optimized out>, npreloads=<optimized out>, trace_mode=0, open_mode=-2147483648) at dl-deps.c:517
#4  0x00007ff533acd8a9 in dl_open_worker (a=0x7fffb065f6c0) at dl-open.c:262
#5  0x00007ff533ac9176 in _dl_catch_error (objname=0x7fffb065f708, errstring=0x7fffb065f710, mallocedp=0x7fffb065f71f, operate=0x7ff533acd700 <dl_open_worker>, args=0x7fffb065f6c0) at dl-error.c:178
#6  0x00007ff533acd31a in _dl_open (file=0x7ff531055a98 "libgcc_s.so.1", mode=-2147483647, caller_dlopen=0x7ff530fe70f5, nsid=-2, argc=3, argv=<optimized out>, env=0x1987b10) at dl-open.c:639
#7  0x00007ff53100ce02 in do_dlopen (ptr=0x7fffb065f8c0) at dl-libc.c:89
#8  0x00007ff533ac9176 in _dl_catch_error (objname=0x7fffb065f8f0, errstring=0x7fffb065f8e0, mallocedp=0x7fffb065f8ff, operate=0x7ff53100cdc0 <do_dlopen>, args=0x7fffb065f8c0) at dl-error.c:178
#9  0x00007ff53100cec4 in dlerror_run (args=0x7fffb065f8c0, operate=0x7ff53100cdc0 <do_dlopen>) at dl-libc.c:48
#10 __GI___libc_dlopen_mode (name=<optimized out>, mode=<optimized out>) at dl-libc.c:165
#11 0x00007ff530fe70f5 in init () at ../sysdeps/x86_64/../ia64/backtrace.c:53
#12 0x00007ff52eaa5400 in pthread_once () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S:104
#13 0x00007ff530fe7214 in __GI___backtrace (array=<optimized out>, size=64) at ../sysdeps/x86_64/../ia64/backtrace.c:104
#14 0x00007ff530f51e3f in __libc_message (do_abort=2, fmt=0x7ff53105a0d0 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:180
#15 0x00007ff530f5c626 in malloc_printerr (action=3, str=0x7ff53105a450 "malloc(): memory corruption (fast)", ptr=<optimized out>) at malloc.c:5007
#16 0x00007ff530f5ee78 in _int_malloc (av=0x7ff531294720, bytes=48) at malloc.c:3470
#17 0x00007ff530f61df5 in __libc_calloc (n=<optimized out>, elem_size=<optimized out>) at malloc.c:3274
#18 0x00007ff5282a8e69 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#19 0x00007ff5282a5e17 in dbus_message_get_path_decomposed () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#20 0x00007ff5282a8a0d in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#21 0x00007ff52829a9f0 in dbus_connection_dispatch () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#22 0x00007ff52f6146f9 in q_dbus_connection_dispatch (connection=<optimized out>) at qdbus_symbols_p.h:115
#23 QDBusConnectionPrivate::doDispatch (this=0x1275df0) at qdbusintegrator.cpp:1129
#24 0x00007ff52f6186c5 in QDBusConnectionPrivate::socketRead (this=0x1275df0, fd=<optimized out>) at qdbusintegrator.cpp:1149
#25 0x00007ff531940281 in QMetaObject::activate (sender=0x1279890, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb0660730) at kernel/qobject.cpp:3547
#26 0x00007ff53198d2fe in QSocketNotifier::activated (this=<optimized out>, _t1=15) at .moc/release-shared/moc_qsocketnotifier.cpp:103
#27 0x00007ff53194960b in QSocketNotifier::event (this=0x1279890, e=0x7fffb0660da0) at kernel/qsocketnotifier.cpp:317
#28 0x00007ff531e4e894 in notify_helper (e=0x7fffb0660da0, receiver=0x1279890, this=0xb14cd0) at kernel/qapplication.cpp:4559
#29 QApplicationPrivate::notify_helper (this=0xb14cd0, receiver=0x1279890, e=0x7fffb0660da0) at kernel/qapplication.cpp:4531
#30 0x00007ff531e53713 in QApplication::notify (this=0x7fffb06610d0, receiver=0x1279890, e=0x7fffb0660da0) at kernel/qapplication.cpp:4420
#31 0x00007ff533687b46 in KApplication::notify (this=0x7fffb06610d0, receiver=0x1279890, event=0x7fffb0660da0) at ../../kdeui/kernel/kapplication.cpp:311
#32 0x00007ff53192be9c in QCoreApplication::notifyInternal (this=0x7fffb06610d0, receiver=0x1279890, event=0x7fffb0660da0) at kernel/qcoreapplication.cpp:876
#33 0x00007ff53195aa97 in sendEvent (event=0x7fffb0660da0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#34 socketNotifierSourceDispatch (source=0xb18c00) at kernel/qeventdispatcher_glib.cpp:110
#35 0x00007ff529879c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007ff52987a060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007ff52987a124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007ff53195b3bf in QEventDispatcherGlib::processEvents (this=0xabab00, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#39 0x00007ff531ef6d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007ff53192ac82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007ff53192aed7 in QEventLoop::exec (this=0x7fffb0660fb0, flags=...) at kernel/qeventloop.cpp:204
#42 0x00007ff53192ff67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#43 0x0000000000402bd3 in main (argc=<optimized out>, argv=<optimized out>) at ../../kmail/main.cpp:145

Possible duplicates by query: bug 243262.

Reported using DrKonqi