[kmail2] [Bug 340014] New: kMail crashes when opening a new main window if the original (first) main window has been closed

Thu Oct 16 09:55:56 BST 2014

https://bugs.kde.org/show_bug.cgi?id=340014

            Bug ID: 340014
           Summary: kMail crashes when opening a new main window if the
                    original (first) main window has been closed
           Product: kmail2
           Version: 4.14.1
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: UI
          Assignee: kdepim-bugs at kde.org
          Reporter: kdebugs at CustomCDROM.de

kMail crashes if a new main window should be opened but the original, first
main window has been closed before.

Reproducible: Always

Steps to Reproduce:
1. Start kMail
2. Open a new main window using File->New->Main Window
3. Close the first (original) main window.
4. Chose File->New->Main Window again, in the newly opened main window => crash

Actual Results:  
kMail crashes.

Expected Results:  
kMail should not crash and a new, second main window should appear.

Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f75977d6800 (LWP 7300))]

Thread 6 (Thread 0x7f756f8a9700 (LWP 7303)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f758957e81d in WTF::TCMalloc_PageHeap::scavengerThread() () from
/usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f758957e859 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) ()
from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f75923fc182 in start_thread (arg=0x7f756f8a9700) at
pthread_create.c:312
#4  0x00007f7594b3afbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f752e0aa700 (LWP 7304)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f75892bf20d in JSC::BlockAllocator::blockFreeingThreadMain() () from
/usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f75895adfd6 in WTF::wtfThreadEntryPoint(void*) () from
/usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f75923fc182 in start_thread (arg=0x7f752e0aa700) at
pthread_create.c:312
#4  0x00007f7594b3afbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f752d1b2700 (LWP 7305)):
#0  0x00007f7594b2dc6d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f758cb97fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f758cb980ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f75954ca7be in QEventDispatcherGlib::processEvents
(this=0x7f75200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f759549c0af in QEventLoop::processEvents
(this=this at entry=0x7f752d1b1de0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f759549c3a5 in QEventLoop::exec (this=this at entry=0x7f752d1b1de0,
flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f7595398c5f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:537
#7  0x00007f759539b32f in QThreadPrivate::start (arg=0x228ad60) at
thread/qthread_unix.cpp:349
#8  0x00007f75923fc182 in start_thread (arg=0x7f752d1b2700) at
pthread_create.c:312
#9  0x00007f7594b3afbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f752760f700 (LWP 7306)):
#0  0x00007f7594b2dc6d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f758cb97fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f758cb980ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f75954ca7be in QEventDispatcherGlib::processEvents
(this=0x7f751c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f759549c0af in QEventLoop::processEvents
(this=this at entry=0x7f752760eda0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f759549c3a5 in QEventLoop::exec (this=this at entry=0x7f752760eda0,
flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f7595398c5f in QThread::exec (this=this at entry=0x2677b20) at
thread/qthread.cpp:537
#7  0x00007f759547d823 in QInotifyFileSystemWatcherEngine::run (this=0x2677b20)
at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f759539b32f in QThreadPrivate::start (arg=0x2677b20) at
thread/qthread_unix.cpp:349
#9  0x00007f75923fc182 in start_thread (arg=0x7f752760f700) at
pthread_create.c:312
#10 0x00007f7594b3afbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f7526bfd700 (LWP 7308)):
#0  0x00007f7594b328e3 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f759547a171 in QProcessManager::run (this=0x7f7595804540
<processManager()::processManager>) at io/qprocess_unix.cpp:270
#2  0x00007f759539b32f in QThreadPrivate::start (arg=0x7f7595804540
<processManager()::processManager>) at thread/qthread_unix.cpp:349
#3  0x00007f75923fc182 in start_thread (arg=0x7f7526bfd700) at
pthread_create.c:312
#4  0x00007f7594b3afbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f75977d6800 (LWP 7300)):
[KCrash Handler]
#6  QString::operator== (this=0x28002000680103, other=...) at
tools/qstring.cpp:2192
#7  0x00007f759732874c in KStatusNotifierItem::setToolTipSubTitle
(this=this at entry=0x256dbe0, subTitle=...) at
../../kdeui/notifications/kstatusnotifieritem.cpp:419
#8  0x00007f759655e86e in KMail::KMSystemTray::unreadMail
(this=this at entry=0x256dbe0, model=model at entry=0x1e76cc0, parentIndex=...) at
../../kmail/kmsystemtray.cpp:415
#9  0x00007f759655e74d in KMail::KMSystemTray::unreadMail
(this=this at entry=0x256dbe0, model=model at entry=0x1e76cc0, parentIndex=...) at
../../kmail/kmsystemtray.cpp:408
#10 0x00007f759655ea25 in KMail::KMSystemTray::initListOfCollection
(this=0x256dbe0) at ../../kmail/kmsystemtray.cpp:375
#11 0x00007f759655ef3f in updateSystemTray (this=<optimized out>) at
../../kmail/kmsystemtray.cpp:437
#12 KMail::KMSystemTray::setShowUnreadCount (this=<optimized out>,
showUnreadCount=<optimized out>) at ../../kmail/kmsystemtray.cpp:154
#13 0x00007f75965674a5 in KMKernel::toggleSystemTray (this=0x7fff1cf95630) at
../../kmail/kmkernel.cpp:2060
#14 0x00007f7596597bff in KMMainWidget::readConfig (this=this at entry=0x23d1910)
at ../../kmail/kmmainwidget.cpp:875
#15 0x00007f75965a6f66 in KMMainWidget::KMMainWidget (this=0x23d1910,
parent=<optimized out>, aGUIClient=0x28e65e0, actionCollection=<optimized out>,
config=...) at ../../kmail/kmmainwidget.cpp:271
#16 0x00007f7596556ab1 in KMMainWin::KMMainWin (this=this at entry=0x28e6580,
__in_chrg=<optimized out>, __vtt_parm=<optimized out>) at
../../kmail/kmmainwin.cpp:67
#17 0x00007f7596556e5d in KMMainWin::slotNewMailReader (this=<optimized out>)
at ../../kmail/kmmainwin.cpp:156
#18 0x00007f75954b187a in QMetaObject::activate (sender=sender at entry=0xc8d2da0,
m=m at entry=0x7f7596478de0 <QAction::staticMetaObject>,
local_signal_index=local_signal_index at entry=1, argv=argv at entry=0x7fff1cf94400)
at kernel/qobject.cpp:3539
#19 0x00007f75959c8a62 in QAction::triggered (this=this at entry=0xc8d2da0,
_t1=false) at .moc/release-shared/moc_qaction.cpp:276
#20 0x00007f75959ca433 in QAction::activate (this=this at entry=0xc8d2da0,
event=event at entry=QAction::Trigger) at kernel/qaction.cpp:1257
#21 0x00007f7595df8489 in QMenuPrivate::activateCausedStack
(this=this at entry=0x86b07d0, causedStack=..., action=action at entry=0xc8d2da0,
action_e=action_e at entry=QAction::Trigger, self=self at entry=true) at
widgets/qmenu.cpp:1038
#22 0x00007f7595dfc9b9 in QMenuPrivate::activateAction (this=0x86b07d0,
action=0xc8d2da0, action_e=action_e at entry=QAction::Trigger,
self=self at entry=true) at widgets/qmenu.cpp:1130
#23 0x00007f7595e00385 in QMenu::mouseReleaseEvent (this=this at entry=0x84ff380,
e=e at entry=0x7fff1cf94b30) at widgets/qmenu.cpp:2372
#24 0x00007f75972cc665 in KMenu::mouseReleaseEvent (this=0x84ff380,
e=0x7fff1cf94b30) at ../../kdeui/widgets/kmenu.cpp:464
#25 0x00007f7595a1e50a in QWidget::event (this=this at entry=0x84ff380,
event=event at entry=0x7fff1cf94b30) at kernel/qwidget.cpp:8376
#26 0x00007f7595e007bb in QMenu::event (this=0x84ff380, e=0x7fff1cf94b30) at
widgets/qmenu.cpp:2481
#27 0x00007f75959cee2c in QApplicationPrivate::notify_helper
(this=this at entry=0x1cefa90, receiver=receiver at entry=0x84ff380,
e=e at entry=0x7fff1cf94b30) at kernel/qapplication.cpp:4567
#28 0x00007f75959d55dd in QApplication::notify (this=this at entry=0x7fff1cf95600,
receiver=receiver at entry=0x84ff380, e=e at entry=0x7fff1cf94b30) at
kernel/qapplication.cpp:4110
#29 0x00007f7597215d1a in KApplication::notify (this=0x7fff1cf95600,
receiver=0x84ff380, event=0x7fff1cf94b30) at
../../kdeui/kernel/kapplication.cpp:311
#30 0x00007f759549d4dd in QCoreApplication::notifyInternal
(this=0x7fff1cf95600, receiver=receiver at entry=0x84ff380,
event=event at entry=0x7fff1cf94b30) at kernel/qcoreapplication.cpp:953
#31 0x00007f75959d4d93 in sendEvent (event=<optimized out>, receiver=<optimized
out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QApplicationPrivate::sendMouseEvent (receiver=receiver at entry=0x84ff380,
event=event at entry=0x7fff1cf94b30, alienWidget=alienWidget at entry=0x0,
nativeWidget=nativeWidget at entry=0x84ff380,
buttonDown=buttonDown at entry=0x7f75964b4318 <qt_button_down>,
lastMouseReceiver=..., spontaneous=spontaneous at entry=true) at
kernel/qapplication.cpp:3178
#33 0x00007f7595a49cfc in QETWidget::translateMouseEvent
(this=this at entry=0x84ff380, event=event at entry=0x7fff1cf94e80) at
kernel/qapplication_x11.cpp:4568
#34 0x00007f7595a49269 in QApplication::x11ProcessEvent (this=0x7fff1cf95600,
event=event at entry=0x7fff1cf94e80) at kernel/qapplication_x11.cpp:3627
#35 0x00007f7595a70b02 in x11EventSourceDispatch (s=0x1d0a130, callback=0x0,
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0x00007f758cb97e04 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f758cb98048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f758cb980ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f75954ca7a1 in QEventDispatcherGlib::processEvents (this=0x1c08af0,
flags=...) at kernel/qeventdispatcher_glib.cpp:434
#40 0x00007f7595a70bb6 in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x00007f759549c0af in QEventLoop::processEvents
(this=this at entry=0x7fff1cf95250, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007f759549c3a5 in QEventLoop::exec (this=this at entry=0x7fff1cf95250,
flags=...) at kernel/qeventloop.cpp:204
#43 0x00007f75954a1b79 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1225
#44 0x00007f75959cd37c in QApplication::exec () at kernel/qapplication.cpp:3828
#45 0x0000000000402d18 in main (argc=<optimized out>, argv=<optimized out>) at
../../kmail/main.cpp:146

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