Bug 294931

Application: kontact (4.4.11)
KDE Platform Version: 4.6.5 (4.6.5)
Qt Version: 4.7.4
Operating System: Linux 3.2.0-1-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:

Trying to reply to a message in KMail

- Unusual behavior I noticed:

When selecting the message by clicking on the message header in the message list pane, the message body pane was totally blank (not even the message headers were shown).

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1a21648760 (LWP 5692))]

Thread 2 (Thread 0x7f19fd266700 (LWP 5791)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007f1a1ea233f8 in _L_lock_9627 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f1a1ea217e1 in *__GI___libc_free (mem=0x7f1a1ed29e60) at malloc.c:3736
#3  0x00007f1a1f1bd605 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f1a1846dd7e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f1a1846e5f2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f1a1846ea99 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f1a1f1bde2f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#8  0x00007f1a1f192492 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#9  0x00007f1a1f19268f in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#10 0x00007f1a1f0aa30f in QThread::exec() () from /usr/lib/libQtCore.so.4
#11 0x00007f1a1f17535f in ?? () from /usr/lib/libQtCore.so.4
#12 0x00007f1a1f0accf5 in ?? () from /usr/lib/libQtCore.so.4
#13 0x00007f1a1893eb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#14 0x00007f1a1ea7f90d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f1a21648760 (LWP 5692)):
[KCrash Handler]
#6  _IO_flush_all_lockp (do_lock=0) at genops.c:846
#7  0x00007f1a1e9dc7a4 in *__GI_abort () at abort.c:77
#8  0x00007f1a1ea1326b in __libc_message (do_abort=<optimized out>, fmt=<optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
#9  0x00007f1a1ea1cab6 in malloc_printerr (action=3, str=0x7f1a1eaf08e2 "malloc(): memory corruption", ptr=<optimized out>) at malloc.c:6283
#10 0x00007f1a1ea1fb23 in _int_malloc (av=0x7f1a1ed29e60, bytes=<optimized out>) at malloc.c:4396
#11 0x00007f1a1ea218d0 in *__GI___libc_malloc (bytes=200) at malloc.c:3660
#12 0x00007f1a1f0ca1eb in QListData::detach(int) () from /usr/lib/libQtCore.so.4
#13 0x00007f1a0351e429 in ?? () from /usr/lib/libkmailprivate.so.4
#14 0x00007f1a033e2085 in ?? () from /usr/lib/libkmailprivate.so.4
#15 0x00007f1a034d9667 in KMCommand::transferSelectedMsgs() () from /usr/lib/libkmailprivate.so.4
#16 0x00007f1a034dc3c0 in KMCommand::slotStart() () from /usr/lib/libkmailprivate.so.4
#17 0x00007f1a034e3bb6 in KMCommand::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkmailprivate.so.4
#18 0x00007f1a1f1a9a6a in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#19 0x00007f1a1fb75c64 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#20 0x00007f1a1fb7aaf1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#21 0x00007f1a2089ab96 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#22 0x00007f1a1f19328c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#23 0x00007f1a1f196648 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#24 0x00007f1a1f1bd9d3 in ?? () from /usr/lib/libQtCore.so.4
#25 0x00007f1a1846e0cf in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f1a1846e8c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f1a1846ea99 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f1a1f1bde2f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#29 0x00007f1a1fc19eee in ?? () from /usr/lib/libQtGui.so.4
#30 0x00007f1a1f192492 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x00007f1a1f19268f in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#32 0x00007f1a1f196837 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#33 0x00000000004038ac in ?? ()
#34 0x00007f1a1e9c5ead in __libc_start_main (main=<optimized out>, argc=<optimized out>, ubp_av=<optimized out>, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff0c623f98) at libc-start.c:228
#35 0x0000000000403df1 in _start ()

Reported using DrKonqi