Application: kontact (4.4.2)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-23-generic x86_64
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
Today kmail crash always (after some time, when I try to read a email or mark as span or other).
I've have this asame problem also more times some month ago, I don't found and fix, but some time later kmail works ok.
I've noted the kmail partially "freez" the system, bur the monitor have a time max of 10% dedicated to kmail and encfs (the mail folder is encrypted).
The same problem in the past when the mail folder was on cryptfs partition.

I can only noted that yesterday (before to shutdown), I've moved about 100 email from difernt folders to a new.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f40a89aa780 (LWP 2452))]

Thread 2 (Thread 0x7f408186b710 (LWP 2472)):
#0  0x00007f40a5a7bf83 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f409e5b04a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f409e5b08fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f40a6e67566 in QEventDispatcherGlib::processEvents (this=0x2f9c850, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007f40a6e3c992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f40a6e3cd6c in QEventLoop::exec (this=0x7f408186ad90, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f40a6d46d59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007f40a6e1d178 in QInotifyFileSystemWatcherEngine::run (this=0x2fb0560) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f40a6d49775 in QThreadPrivate::start (arg=0x2fb0560) at thread/qthread_unix.cpp:248
#9  0x00007f40a0b279ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f40a5a886fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f40a89aa780 (LWP 2452)):
[KCrash Handler]
#5  KMFolder::open (this=0x7f4022222222, owner=0x7f408ef3c5ed "kmcommand") at ../../kmail/kmfolder.cpp:543
#6  0x00007f408ec7d003 in KMCommand::keepFolderOpen (this=0x3682180, folder=0x7f4022222222) at ../../kmail/kmcommands.cpp:479
#7  0x00007f408ec8f83a in KMCommand::slotStart (this=0x3682180) at ../../kmail/kmcommands.cpp:277
#8  0x00007f408ec87c66 in KMCommand::qt_metacall (this=0x3682180, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffe21be5c0) at ./kmcommands.moc:92
#9  0x00007f40a6e50e3f in QMetaObject::activate (sender=0x34ae870, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3293
#10 0x00007f40a6e5865f in QSingleShotTimer::timerEvent (this=0x34ae870) at kernel/qtimer.cpp:308
#11 0x00007f40a6e4da63 in QObject::event (this=0x34ae870, e=0x7fffe21bed20) at kernel/qobject.cpp:1212
#12 0x00007f40a61f722c in QApplicationPrivate::notify_helper (this=0x1e57de0, receiver=0x34ae870, e=0x7fffe21bed20) at kernel/qapplication.cpp:4300
#13 0x00007f40a61fd6fb in QApplication::notify (this=0x7fffe21bffc0, receiver=0x34ae870, e=0x7fffe21bed20) at kernel/qapplication.cpp:4183
#14 0x00007f40a7826526 in KApplication::notify (this=0x7fffe21bffc0, receiver=0x34ae870, event=0x7fffe21bed20) at ../../kdeui/kernel/kapplication.cpp:302
#15 0x00007f40a6e3e06c in QCoreApplication::notifyInternal (this=0x7fffe21bffc0, receiver=0x34ae870, event=0x7fffe21bed20) at kernel/qcoreapplication.cpp:704
#16 0x00007f40a6e6ad42 in QCoreApplication::sendEvent (this=0x1e60130) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QTimerInfoList::activateTimers (this=0x1e60130) at kernel/qeventdispatcher_unix.cpp:603
#18 0x00007f40a6e67824 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#19 0x00007f409e5ac8c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#20 0x00007f409e5b0748 in ?? () from /lib/libglib-2.0.so.0
#21 0x00007f409e5b08fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#22 0x00007f40a6e67513 in QEventDispatcherGlib::processEvents (this=0x1e24d70, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#23 0x00007f40a62a746e in QGuiEventDispatcherGlib::processEvents (this=0x7f4022222222, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f40a6e40ba6 in QCoreApplication::processEvents (flags=) at kernel/qcoreapplication.cpp:924
#25 0x00007f408ec97ca2 in KMFilterActionCommand::execute (this=0x34c4240) at ../../kmail/kmcommands.cpp:1827
#26 0x00007f408ec7e34a in KMCommand::slotPostTransfer (this=0x34c4240, result=KMCommand::OK) at ../../kmail/kmcommands.cpp:291
#27 0x00007f408ec87c83 in KMCommand::qt_metacall (this=0x34c4240, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffe21bf2d0) at ./kmcommands.moc:93
#28 0x00007f40a6e50e3f in QMetaObject::activate (sender=0x34c4240, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3293
#29 0x00007f408ec7901e in KMCommand::messagesTransfered (this=0x7f4022222222, _t1=KMCommand::OK) at ./kmcommands.moc:108
#30 0x00007f408ec8f64c in KMCommand::transferSelectedMsgs (this=0x34c4240) at ../../kmail/kmcommands.cpp:389
#31 0x00007f408ec8f858 in KMCommand::slotStart (this=0x34c4240) at ../../kmail/kmcommands.cpp:283
#32 0x00007f408ec87c66 in KMCommand::qt_metacall (this=0x34c4240, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffe21bf500) at ./kmcommands.moc:92
#33 0x00007f40a6e50e3f in QMetaObject::activate (sender=0x3a603c0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3293
#34 0x00007f40a6e5865f in QSingleShotTimer::timerEvent (this=0x3a603c0) at kernel/qtimer.cpp:308
#35 0x00007f40a6e4da63 in QObject::event (this=0x3a603c0, e=0x7fffe21bfc60) at kernel/qobject.cpp:1212
#36 0x00007f40a61f722c in QApplicationPrivate::notify_helper (this=0x1e57de0, receiver=0x3a603c0, e=0x7fffe21bfc60) at kernel/qapplication.cpp:4300
#37 0x00007f40a61fd6fb in QApplication::notify (this=0x7fffe21bffc0, receiver=0x3a603c0, e=0x7fffe21bfc60) at kernel/qapplication.cpp:4183
#38 0x00007f40a7826526 in KApplication::notify (this=0x7fffe21bffc0, receiver=0x3a603c0, event=0x7fffe21bfc60) at ../../kdeui/kernel/kapplication.cpp:302
#39 0x00007f40a6e3e06c in QCoreApplication::notifyInternal (this=0x7fffe21bffc0, receiver=0x3a603c0, event=0x7fffe21bfc60) at kernel/qcoreapplication.cpp:704
#40 0x00007f40a6e6ad42 in QCoreApplication::sendEvent (this=0x1e60130) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#41 QTimerInfoList::activateTimers (this=0x1e60130) at kernel/qeventdispatcher_unix.cpp:603
#42 0x00007f40a6e67824 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#43 0x00007f409e5ac8c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#44 0x00007f409e5b0748 in ?? () from /lib/libglib-2.0.so.0
#45 0x00007f409e5b08fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#46 0x00007f40a6e67513 in QEventDispatcherGlib::processEvents (this=0x1e24d70, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#47 0x00007f40a62a746e in QGuiEventDispatcherGlib::processEvents (this=0x7f4022222222, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#48 0x00007f40a6e3c992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#49 0x00007f40a6e3cd6c in QEventLoop::exec (this=0x7fffe21bff00, flags=) at kernel/qeventloop.cpp:201
#50 0x00007f40a6e40aab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#51 0x0000000000403e8e in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kontact/src/main.cpp:224

Possible duplicates by query: bug 243103, bug 225891, bug 225425, bug 223431, bug 218362.

Reported using DrKonqi