Application: kmail (1.13.5)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-25-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
I wanted to mark all messages in a folder as ham and saw it was >5000. When I pressed the cancel button, KMail crashed.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f69ace02820 (LWP 22742))]

Thread 3 (Thread 0x7f6994d85700 (LWP 22743)):
#0  0x00007f69a9868203 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f69a0923009 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f69a09237b5 in g_main_loop_run () from /lib/libglib-2.0.so.0
#3  0x00007f6998d930f4 in ?? () from /usr/lib/libgio-2.0.so.0
#4  0x00007f69a09487e4 in ?? () from /lib/libglib-2.0.so.0
#5  0x00007f69a736e971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#6  0x00007f69a987492d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f697ee5d700 (LWP 22768)):
#0  0x00007f69a9868203 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f69a0923009 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f69a092345c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f69aa1c21e6 in QEventDispatcherGlib::processEvents (this=0x14cfcd0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007f69aa194a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f69aa194dec in QEventLoop::exec (this=0x7f697ee5ccf0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f69aa09f2fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007f69aa1745f8 in QInotifyFileSystemWatcherEngine::run (this=0x233df60) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f69aa0a227e in QThreadPrivate::start (arg=0x233df60) at thread/qthread_unix.cpp:266
#9  0x00007f69a736e971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007f69a987492d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f69ace02820 (LWP 22742)):
[KCrash Handler]
#6  0x00007f69ab695705 in KMMessage::setTransferInProgress (this=0x119a290, value=false, force=false) at ../../kmail/kmmessage.cpp:278
#7  0x00007f69ab916098 in KMCommand::slotTransferCancelled (this=0x20061cf0) at ../../kmail/kmcommands.cpp:473
#8  0x00007f69ab91e874 in KMCommand::qt_metacall (this=0x20061cf0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff9004b6d0) at ./kmcommands.moc:96
#9  0x00007f69aa1adb27 in QMetaObject::activate (sender=0x185f3c20, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xe20d30) at kernel/qobject.cpp:3280
#10 0x00007f69ac782b78 in KDialog::slotButtonClicked (this=0x185f3c20, button=32) at ../../kdeui/dialogs/kdialog.cpp:898
#11 0x00007f69ac784af9 in KDialog::qt_metacall (this=0x185f3c20, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff9004b8b0) at ./kdialog.moc:190
#12 0x00007f69ac7a44f0 in KProgressDialog::qt_metacall (this=0x119a290, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xe20d30) at ./kprogressdialog.moc:69
#13 0x00007f69aa1adb27 in QMetaObject::activate (sender=0x108d8818, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xe20d30) at kernel/qobject.cpp:3280
#14 0x00007f69aa1b07fe in QSignalMapper::mapped (this=0x119a290, _t1=32) at .moc/release-shared/moc_qsignalmapper.cpp:101
#15 0x00007f69aa1b1a12 in QSignalMapper::map (this=0x108d8818, sender=0x1d7085c0) at kernel/qsignalmapper.cpp:266
#16 0x00007f69aa1b1c90 in QSignalMapper::qt_metacall (this=0x108d8818, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff9004ba40) at .moc/release-shared/moc_qsignalmapper.cpp:87
#17 0x00007f69aa1adb27 in QMetaObject::activate (sender=0x1d7085c0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xe20d30) at kernel/qobject.cpp:3280
#18 0x00007f69aad5e402 in QAbstractButton::clicked (this=0x119a290, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:206
#19 0x00007f69aaa58eeb in QAbstractButtonPrivate::emitClicked (this=0x1f518500) at widgets/qabstractbutton.cpp:546
#20 0x00007f69aaa5a5bb in QAbstractButtonPrivate::click (this=0x1f518500) at widgets/qabstractbutton.cpp:539
#21 0x00007f69aaa5a82c in QAbstractButton::mouseReleaseEvent (this=0x1d7085c0, e=0x7fff9004c390) at widgets/qabstractbutton.cpp:1121
#22 0x00007f69aa6d704e in QWidget::event (this=0x1d7085c0, event=0x7fff9004c390) at kernel/qwidget.cpp:8187
#23 0x00007f69aa680fdc in QApplicationPrivate::notify_helper (this=0xe465c0, receiver=0x1d7085c0, e=0x7fff9004c390) at kernel/qapplication.cpp:4396
#24 0x00007f69aa68730e in QApplication::notify (this=0x7fff9004d1b0, receiver=0x1d7085c0, e=0x7fff9004c390) at kernel/qapplication.cpp:3959
#25 0x00007f69ac829156 in KApplication::notify (this=0x7fff9004d1b0, receiver=0x1d7085c0, event=0x7fff9004c390) at ../../kdeui/kernel/kapplication.cpp:310
#26 0x00007f69aa195cdc in QCoreApplication::notifyInternal (this=0x7fff9004d1b0, receiver=0x1d7085c0, event=0x7fff9004c390) at kernel/qcoreapplication.cpp:732
#27 0x00007f69aa685dbe in sendEvent (receiver=0x1d7085c0, event=0x7fff9004c390, alienWidget=0x1d7085c0, nativeWidget=0x185f3c20, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#28 QApplicationPrivate::sendMouseEvent (receiver=0x1d7085c0, event=0x7fff9004c390, alienWidget=0x1d7085c0, nativeWidget=0x185f3c20, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#29 0x00007f69aa709345 in QETWidget::translateMouseEvent (this=0x185f3c20, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#30 0x00007f69aa707c5c in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff9004ccb0) at kernel/qapplication_x11.cpp:3536
#31 0x00007f69aa7340e2 in x11EventSourceDispatch (s=0xe49fa0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x00007f69a091f342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#33 0x00007f69a09232a8 in ?? () from /lib/libglib-2.0.so.0
#34 0x00007f69a092345c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#35 0x00007f69aa1c2193 in QEventDispatcherGlib::processEvents (this=0xdfb8a0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#36 0x00007f69aa733a4e in QGuiEventDispatcherGlib::processEvents (this=0x119a290, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f69aa194a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#38 0x00007f69aa194dec in QEventLoop::exec (this=0x7fff9004cfe0, flags=) at kernel/qeventloop.cpp:201
#39 0x00007f69aa198ebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#40 0x0000000000403212 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../kmail/main.cpp:156

Reported using DrKonqi