kmail often crashes when emptying wastebin

[auxbuss]

I experience this bug about one in five times when emptying the wastebin. The problem occurs when right-clicking either Local Folders/Wastebin or <mail account>/Trash, and clicking "Empty Wastebin".

Notes:
- All my email accounts are IMAP
- I am using the KDE wallet

$ lsb_release -rd
Description: Ubuntu 9.04
Release: 9.04

$ apt-cache policy kmail
kmail:
  Installed: 4:4.2.2-0ubuntu1
  Candidate: 4:4.2.2-0ubuntu1
  Version table:
 *** 4:4.2.2-0ubuntu1 0
        500 http://gb.archive.ubuntu.com jaunty/main Packages
        100 /var/lib/dpkg/status

[Jonathan Thomas (echidnaman)]

Could you please get a backtrace from the KDE Crash Handler (Click the "details" checkbox) with KDE 4.2.4, if the crash is still an issue?
http://www.kubuntu.org/news/kde-4.2.4
Alternately, if you could see if it still happens with KDE 4.3 Release Candidate 3, that would be great too
http://www.kubuntu.org/news/kde-4.2.4

Thanks in advance.

[auxbuss (launchpad-auxbuss)]

Thanks for the feedback. I upgraded to KDE 4.2.4 and things looked good until:

Application: KMail (kmail), signal SIGABRT
[Current thread is 0 (LWP 29034)]

Thread 2 (Thread 0xac451b90 (LWP 29283)):
#0 0xb8035430 in __kernel_vsyscall ()
#1 0xb5c657b1 in select () from /lib/tls/i686/cmov/libc.so.6
#2 0xb5f39380 in ?? () from /usr/lib/libQtCore.so.4
#3 0xb5e6796e in ?? () from /usr/lib/libQtCore.so.4
#4 0xb50964ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5 0xb5c6d49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb3c8cb40 (LWP 29034)):
[KCrash Handler]
#6 0xb8035430 in __kernel_vsyscall ()
#7 0xb5bb46d0 in raise () from /lib/tls/i686/cmov/libc.so.6
#8 0xb5bb6098 in abort () from /lib/tls/i686/cmov/libc.so.6
#9 0xb5e5f595 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb5e5f681 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb5e5f775 in qt_assert () from /usr/lib/libQtCore.so.4
#12 0xb77bf219 in ?? () from /usr/lib/libkmailprivate.so.4
#13 0xb72fed43 in ?? () from /usr/lib/libkmailprivate.so.4
#14 0xb5f71ca8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb5f72932 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb5fad717 in QTimer::timeout () from /usr/lib/libQtCore.so.4
#17 0xb5f776fe in QTimer::timerEvent () from /usr/lib/libQtCore.so.4
#18 0xb5f6c15f in QObject::event () from /usr/lib/libQtCore.so.4
#19 0xb6208e9c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#20 0xb621119e in QApplication::notify () from /usr/lib/libQtGui.so.4
#21 0xb7e68e0d in KApplication::notify () from /usr/lib/libkdeui.so.5
#22 0xb5f5ba3b in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#23 0xb5f8ad71 in ?? () from /usr/lib/libQtCore.so.4
#24 0xb5f874e0 in ?? () from /usr/lib/libQtCore.so.4
#25 0xb438db88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0xb43910eb in ?? () from /usr/lib/libglib-2.0.so.0
#27 0xb4391268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#28 0xb5f87438 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#29 0xb62aa365 in ?? () from /usr/lib/libQtGui.so.4
#30 0xb5f5a06a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#31 0xb5f5a4aa in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#32 0xb5f5c959 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#33 0xb6208d17 in QApplication::exec () from /usr/lib/libQtGui.so.4
#34 0x0804a7a0 in _start ()

This was when doing right-click, Empty wastebin on Local folders/wastebin.

Moving to KDE 4.3 RC is not an option on this m/c; it has to do real work, the kind hat pays the bills.

[Jonathan Thomas (echidnaman)]

Oh, whoops. I forgot to mention that to get a complete trace you will need to install kdepim-dbg. Sorry for forgetting. (You can remove this all later on by removing the libqt4-dbg package)

[auxbuss (launchpad-auxbuss)]

Here with kdepim-dbg installed.

As before, this was when doing right-click, Empty wastebin on Local folders/wastebin.

Application: KMail (kmail), signal SIGABRT
[Current thread is 0 (LWP 4645)]

Thread 2 (Thread 0xabb11b90 (LWP 4661)):
#0 0xb7fad430 in __kernel_vsyscall ()
#1 0xb5bdd7b1 in select () from /lib/tls/i686/cmov/libc.so.6
#2 0xb5eb1380 in QProcessManager::run (this=0x9f7b940) at io/qprocess_unix.cpp:305
#3 0xb5ddf96e in QThreadPrivate::start (arg=0x9f7b940) at thread/qthread_unix.cpp:189
#4 0xb500e4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5 0xb5be549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb3c04b40 (LWP 4645)):
[KCrash Handler]
#6 0xb7fad430 in __kernel_vsyscall ()
#7 0xb5b2c6d0 in raise () from /lib/tls/i686/cmov/libc.so.6
#8 0xb5b2e098 in abort () from /lib/tls/i686/cmov/libc.so.6
#9 0xb5dd7595 in qt_message_output (msgType=QtFatalMsg,
    buf=0x9fc4258 "ASSERT: \"mCurrentItemToRestoreAfterViewItemJobStep->isViewable()\" in file /build/buildd/kdepim-4.2.4/kmail/messagelistview/core/model.cpp, line 3853") at global/qglobal.cpp:2006
#10 0xb5dd7681 in qFatal (msg=0xb5f26318 "ASSERT: \"%s\" in file %s, line %d") at global/qglobal.cpp:2201
#11 0xb5dd7775 in qt_assert (assertion=0xb78f67d4 "mCurrentItemToRestoreAfterViewItemJobStep->isViewable()", file=0xb78f64cc "/build/buildd/kdepim-4.2.4/kmail/messagelistview/core/model.cpp",
    line=3853) at global/qglobal.cpp:1777
#12 0xb7737219 in KMail::MessageListView::Core::Model::viewItemJobStep (this=0xa2c12a0) at /build/buildd/kdepim-4.2.4/kmail/messagelistview/core/model.cpp:3853
#13 0xb7276d43 in KMail::MessageListView::Core::Model::qt_metacall (this=0xa2c12a0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfcc8e38)
    at /build/buildd/kdepim-4.2.4/obj-i486-linux-gnu/kmail/moc_model.cpp:76
#14 0xb5ee9ca8 in QMetaObject::activate (sender=0xa24e518, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3069
#15 0xb5eea932 in QMetaObject::activate (sender=0xa24e518, m=0xb5fc6904, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3143
#16 0xb5f25717 in QTimer::timeout (this=0xa24e518) at .moc/release-shared/moc_qtimer.cpp:128
#17 0xb5eef6fe in QTimer::timerEvent (this=0xa24e518, e=0xbfcc92bc) at kernel/qtimer.cpp:261
#18 0xb5ee415f in QObject::event (this=0xa24e518, e=0xbfcc92bc) at kernel/qobject.cpp:1082
#19 0xb6180e9c in QApplicationPrivate::notify_helper (this=0x9f798b8, receiver=0xa24e518, e=0xbfcc92bc) at kernel/qapplication.cpp:4084
#20 0xb618919e in QApplication::notify (this=0xbfcc95d8, receiver=0xa24e518, e=0xbfcc92bc) at kernel/qapplication.cpp:3631
#21 0xb7de0e0d in KApplication::notify (this=0xbfcc95d8, receiver=0xa24e518, event=0xbfcc92bc) at /build/buildd/kde4libs-4.2.4/kdeui/kernel/kapplication.cpp:307
#22 0xb5ed3a3b in QCoreApplication::notifyInternal (this=0xbfcc95d8, receiver=0xa24e518, event=0xbfcc92bc) at kernel/qcoreapplication.cpp:602
#23 0xb5f02d71 in QTimerInfoList::activateTimers (this=0x9f7c0c4) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#24 0xb5eff4e0 in timerSourceDispatch (source=0x9f7c090) at kernel/qeventdispatcher_glib.cpp:164
#25 0xb4305b88 in g...

[Jonathan Thomas (echidnaman)]

Thanks. This appears to be the same crash as in bug 311521. Unfortunately, it seems that the fix that KDE made for 4.2.x didn't work to well. :( The good news is that it will be fixed in 4.3.x.