Application: kmail (4.8.0)
KDE Platform Version: 4.8.1 (4.8.1) (Compiled from sources)
Qt Version: 4.8.0
Operating System: Linux 3.2.1-gentoo-r2 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
- What I was doing when the application crashed:
1. Open a new message composer window.
2. Fill in a recipient's address.
3. Press the Tab key (repeatedly) to move the input focus into the body field.
4. KMail crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f26bee347a0 (LWP 5299))]

Thread 3 (Thread 0x7f26a1f00700 (LWP 5312)):
#0  pthread_cond_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f26b0d60034 in scavengerThread (this=0x7f26b1747100) at wtf/FastMalloc.cpp:2495
#2  WTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f26b1747100) at wtf/FastMalloc.cpp:1618
#3  0x00007f26b9e82d0c in start_thread (arg=0x7f26a1f00700) at pthread_create.c:301
#4  0x00007f26bc08fdbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7f26a15e7700 (LWP 5313)):
#0  0x00007f26bc086ee3 in *__GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f26b44dfb4d in g_main_context_poll (n_fds=1, fds=0x7f269c002030, timeout=-1, context=0x2d25ef0, priority=<optimized out>) at gmain.c:3402
#2  g_main_context_iterate (context=0x2d25ef0, block=1, dispatch=1, self=<optimized out>) at gmain.c:3084
#3  0x00007f26b44e0021 in g_main_context_iteration (context=0x2d25ef0, may_block=1) at gmain.c:3152
#4  0x00007f26bca07956 in QEventDispatcherGlib::processEvents (this=0x2d25a80, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f26bc9d77e2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f26bc9d7a95 in QEventLoop::exec (this=0x7f26a15e6de0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f26bc8d50d8 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f26bc8d774b in QThreadPrivate::start (arg=0x2d25700) at thread/qthread_unix.cpp:298
#9  0x00007f26b9e82d0c in start_thread (arg=0x7f26a15e7700) at pthread_create.c:301
#10 0x00007f26bc08fdbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f26bee347a0 (LWP 5299)):
[KCrash Handler]
#6  0x00007f26be86da53 in Sonnet::Highlighter::eventFilter (this=0x2c7f3b0, o=0x2741120, e=0x7fff0dde0550) at /var/tmp/portage/kde-base/kdelibs-4.8.1/work/kdelibs-4.8.1/kdeui/sonnet/highlighter.cpp:355
#7  0x00007f26bc9d8936 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x2741120, event=0x7fff0dde0550) at kernel/qcoreapplication.cpp:986
#8  0x00007f26bcf091f1 in QApplicationPrivate::notify_helper (this=0x23275b0, receiver=0x2741120, e=0x7fff0dde0550) at kernel/qapplication.cpp:4546
#9  0x00007f26bcf0e697 in QApplication::notify (this=<optimized out>, receiver=<optimized out>, e=0x7fff0dde0550) at kernel/qapplication.cpp:3991
#10 0x00007f26be7ff716 in KApplication::notify (this=0x7fff0dde1550, receiver=0x2741120, event=0x7fff0dde0550) at /var/tmp/portage/kde-base/kdelibs-4.8.1/work/kdelibs-4.8.1/kdeui/kernel/kapplication.cpp:311
#11 0x00007f26bc9d87bb in QCoreApplication::notifyInternal (this=0x7fff0dde1550, receiver=0x2741120, event=0x7fff0dde0550) at kernel/qcoreapplication.cpp:876
#12 0x00007f26bcfaa4ca in QKeyMapper::sendKeyEvent (keyWidget=0x2741120, grab=<optimized out>, type=QEvent::KeyPress, code=16777217, modifiers=..., text=..., autorepeat=false, count=1, nativeScanCode=23, nativeVirtualKey=65289, nativeModifiers=16) at kernel/qkeymapper_x11.cpp:1866
#13 0x00007f26bcfaa91f in QKeyMapperPrivate::translateKeyEvent (this=<optimized out>, keyWidget=0x2741120, event=<optimized out>, grab=false) at kernel/qkeymapper_x11.cpp:1836
#14 0x00007f26bcf86e43 in QApplication::x11ProcessEvent (this=0x7fff0dde1550, event=0x7fff0dde1100) at kernel/qapplication_x11.cpp:3513
#15 0x00007f26bcfae972 in x11EventSourceDispatch (s=0x232ae80, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#16 0x00007f26b44df4f5 in g_main_dispatch (context=0x2329c00) at gmain.c:2441
#17 g_main_context_dispatch (context=0x2329c00) at gmain.c:3011
#18 0x00007f26b44dfe38 in g_main_context_iterate (context=0x2329c00, block=1, dispatch=1, self=<optimized out>) at gmain.c:3089
#19 0x00007f26b44e0021 in g_main_context_iteration (context=0x2329c00, may_block=1) at gmain.c:3152
#20 0x00007f26bca078ff in QEventDispatcherGlib::processEvents (this=0x22cbad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#21 0x00007f26bcfae61e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#22 0x00007f26bc9d77e2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#23 0x00007f26bc9d7a95 in QEventLoop::exec (this=0x7fff0dde1420, flags=...) at kernel/qeventloop.cpp:204
#24 0x00007f26bc9dc21b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#25 0x00000000004033ae in main (argc=<optimized out>, argv=<optimized out>) at /var/tmp/portage/kde-base/kmail-4.8.1/work/kmail-4.8.1/kmail/main.cpp:145

Possible duplicates by query: bug 295615.

Reported using DrKonqi