Bug 291928

Application: kmail (1.13.6)
KDE Platform Version: 4.6.5 (4.6.5)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-13-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
I was writing recipient address. I typed some characters ( even non-word characters ) and then I hit backspace. I was confused and I typed some more characters and I hit backspace ... KMail crashed. Just before the crash, I had seen dialog with the possible addresses and I had hit down arrow.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f5f0d343840 (LWP 19183))]

Thread 4 (Thread 0x7f5eee3da700 (LWP 19185)):
#0  0x00007f5f0a29cf03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5f021a2104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5f021a29f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5ef93d3c44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f5f021c93e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5f07e58d8c in start_thread (arg=0x7f5eee3da700) at pthread_create.c:304
#6  0x00007f5f0a2aa04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f5ee450d700 (LWP 19187)):
#0  0x00007f5f0abf9e99 in postEventSourcePrepare (s=0x19d3710, timeout=0x7f5ee450cb8c) at kernel/qeventdispatcher_glib.cpp:254
#1  0x00007f5f021a10a2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5f021a1f9d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5f021a2639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5f0abfa446 in QEventDispatcherGlib::processEvents (this=0x1a922e0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f5f0abce882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f5f0abceabc in QEventLoop::exec (this=0x7f5ee450cd10, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f5f0aae5924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#8  0x00007f5f0abb0c2f in QInotifyFileSystemWatcherEngine::run (this=0x1a8a780) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f5f0aae8175 in QThreadPrivate::start (arg=0x1a8a780) at thread/qthread_unix.cpp:320
#10 0x00007f5f07e58d8c in start_thread (arg=0x7f5ee450d700) at pthread_create.c:304
#11 0x00007f5f0a2aa04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5ee3d0c700 (LWP 27219)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f5ee3d0ba20 in ?? ()
#2  0x00007fffc35ff7b2 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7f5f0d343840 (LWP 19183)):
[KCrash Handler]
#6  0x00007f5f0b0ffd2f in QWidget::testAttribute_helper (this=0x23fbe80, attribute=Qt::WA_WState_Created) at kernel/qwidget.cpp:10870
#7  0x00007f5f0b112e25 in testAttribute (this=0x23fbe90, visible=<value optimized out>) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:1031
#8  QWidget::setVisible (this=0x23fbe90, visible=<value optimized out>) at kernel/qwidget.cpp:7595
#9  0x00007f5f0ce1232a in KCompletionBox::setVisible (this=0x23fbe90, visible=true) at ../../kdeui/widgets/kcompletionbox.cpp:345
#10 0x00007f5f04579462 in KPIM::AddresseeLineEdit::setCompletedItems (this=0x1d472f0, items=..., autoSuggest=false) at ../../libkdepim/addresseelineedit.cpp:897
#11 0x00007f5f0457f8f4 in KPIM::AddresseeLineEdit::doCompletion (this=0x1d472f0, ctrlT=false) at ../../libkdepim/addresseelineedit.cpp:472
#12 0x00007f5f04581804 in KPIM::AddresseeLineEdit::qt_metacall (this=0x1d472f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffc34c6100) at ./addresseelineedit.moc:101
#13 0x00007f5f0bf63338 in KMLineEdit::qt_metacall (this=0x1d472f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>) at ./kmlineeditspell.moc:74
#14 0x00007f5f0bfca9e8 in RecipientLineEdit::qt_metacall (this=0x1d472f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>) at ./recipientseditor.moc:135
#15 0x00007f5f0abe45f8 in QMetaObject::activate (sender=0x1d472f0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffc34c6100) at kernel/qobject.cpp:3287
#16 0x00007f5f0ce2acd5 in KLineEdit::completion (this=<value optimized out>, _t1=<value optimized out>) at ./klineedit.moc:232
#17 0x00007f5f0ce2ad5b in KLineEdit::doCompletion (this=0x1d472f0, txt=...) at ../../kdeui/widgets/klineedit.cpp:1857
#18 0x00007f5f0ce2dac2 in KLineEdit::keyPressEvent (this=0x1d472f0, e=0x7fffc34c6ed0) at ../../kdeui/widgets/klineedit.cpp:977
#19 0x00007f5f04580b5d in KPIM::AddresseeLineEdit::keyPressEvent (this=0x1d472f0, e=0x7fffc34c6ed0) at ../../libkdepim/addresseelineedit.cpp:249
#20 0x00007f5f0bfcaa95 in RecipientLineEdit::keyPressEvent (this=0x1d472f0, ev=0x7fffc34c6ed0) at ../../kmail/recipientseditor.cpp:144
#21 0x00007f5f0b10ed4c in QWidget::event (this=0x1d472f0, event=0x7fffc34c6ed0) at kernel/qwidget.cpp:8294
#22 0x00007f5f0b4cf287 in QLineEdit::event (this=0x1d472f0, e=0x7fffc34c6ed0) at widgets/qlineedit.cpp:1485
#23 0x00007f5f0ce2b193 in KLineEdit::event (this=0x1d472f0, ev=0x7fffc34c6ed0) at ../../kdeui/widgets/klineedit.cpp:1399
#24 0x00007f5f0b0bd9f4 in QApplicationPrivate::notify_helper (this=0x1226c60, receiver=0x1d472f0, e=0x7fffc34c6ed0) at kernel/qapplication.cpp:4462
#25 0x00007f5f0b0c2c41 in QApplication::notify (this=<value optimized out>, receiver=<value optimized out>, e=0x7fffc34c6ed0) at kernel/qapplication.cpp:3921
#26 0x00007f5f0cd6e6c6 in KApplication::notify (this=0x7fffc34c7f20, receiver=0x1d472f0, event=0x7fffc34c6ed0) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x00007f5f0abcf49c in QCoreApplication::notifyInternal (this=0x7fffc34c7f20, receiver=0x1d472f0, event=0x7fffc34c6ed0) at kernel/qcoreapplication.cpp:731
#28 0x00007f5f0b1633d9 in QKeyMapper::sendKeyEvent (keyWidget=0x1d472f0, grab=<value optimized out>, type=QEvent::KeyPress, code=80, modifiers=..., text=..., autorepeat=false, count=1, nativeScanCode=33, nativeVirtualKey=80, nativeModifiers=17) at kernel/qkeymapper_x11.cpp:1866
#29 0x00007f5f0b163856 in QKeyMapperPrivate::translateKeyEvent (this=0x12d03b0, keyWidget=0x1d472f0, event=0x7fffc34c7a60, grab=false) at kernel/qkeymapper_x11.cpp:1836
#30 0x00007f5f0b13e72f in QApplication::x11ProcessEvent (this=0x7fffc34c7f20, event=0x7fffc34c7a60) at kernel/qapplication_x11.cpp:3573
#31 0x00007f5f0b167842 in x11EventSourceDispatch (s=0x12aa370, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x00007f5f021a1bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f5f021a23a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f5f021a2639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f5f0abfa3ef in QEventDispatcherGlib::processEvents (this=0x1186310, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#36 0x00007f5f0b1674de in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f5f0abce882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007f5f0abceabc in QEventLoop::exec (this=0x7fffc34c7d60, flags=...) at kernel/qeventloop.cpp:201
#39 0x00007f5f0abd2ecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#40 0x0000000000403175 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../kmail/main.cpp:158

Reported using DrKonqi