Version:            (using KDE 4.2.2)
OS:                Linux
Installed from:    Ubuntu Packages

I started first time KTorrent and loaded one torrent. Next I wanted to change download and upload limits, so first I change download limit, next upload and application crashed. This problem appear when I change from 'No limits' to same special value or when I change from special value to 'No limits'. I used right click on tray icon and there changed speeds.

This is crash report:
Program: KTorrent (ktorrent), sygnał SIGSEGV
[Current thread is 0 (LWP 4524)]

Thread 3 (Thread 0xb1baab90 (LWP 4538)):
#0  0xb7f12430 in __kernel_vsyscall ()
#1  0xb5bd5412 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb64f4344 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb70cf359 in thread_sleep (ti=0xb1baa2c0) at thread/qthread_unix.cpp:298
#4  0xb70cf48b in QThread::msleep (msecs=<value optimized out>) at thread/qthread_unix.cpp:324
#5  0xb7e0b165 in ?? () from /usr/lib/libbtcore.so.10
#6  0xb7e0b9f8 in ?? () from /usr/lib/libbtcore.so.10
#7  0xb70cf96e in QThreadPrivate::start (arg=0x8dc3318) at thread/qthread_unix.cpp:189
#8  0xb5bd14ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb64e549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xb13a9b90 (LWP 4539)):
#0  0xb7f12430 in __kernel_vsyscall ()
#1  0xb5bd50e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb64f42ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb70d09b2 in QWaitCondition::wait (this=0x8dc3600, mutex=0x8dc3604, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7e0a6be in ?? () from /usr/lib/libbtcore.so.10
#5  0xb7e0b9f8 in ?? () from /usr/lib/libbtcore.so.10
#6  0xb70cf96e in QThreadPrivate::start (arg=0x8dc35c8) at thread/qthread_unix.cpp:189
#7  0xb5bd14ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb64e549e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb56d9700 (LWP 4524)):
[KCrash Handler]
#6  0xb6c3eac2 in QMenu::findIdForAction (this=0x8f10a70, act=0x8f10978) at widgets/qmenu.cpp:3157
#7  0xb6c4029d in QMenuPrivate::activateCausedStack (this=0x8f11358, causedStack=@0xbfb2d3d8, action=0x8f10978, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:965
#8  0xb6c46b5b in QMenuPrivate::activateAction (this=0x8f11358, action=0x8f10978, action_e=QAction::Trigger, self=<value optimized out>) at widgets/qmenu.cpp:1058
#9  0xb6c47632 in QMenu::mouseReleaseEvent (this=0x8f10a70, e=0xbfb2da18) at widgets/qmenu.cpp:2252
#10 0xb79c27e5 in KMenu::mouseReleaseEvent () from /usr/lib/libkdeui.so.5
#11 0xb6821bd3 in QWidget::event (this=0x8f10a70, event=0xbfb2da18) at kernel/qwidget.cpp:7516
#12 0xb6c49a19 in QMenu::event (this=0x8f10a70, e=0xbfb2da18) at widgets/qmenu.cpp:2351
#13 0xb67caf2c in QApplicationPrivate::notify_helper (this=0x8de4940, receiver=0x8f10a70, e=0xbfb2da18) at kernel/qapplication.cpp:4084
#14 0xb67d3ba1 in QApplication::notify (this=0xbfb2e32c, receiver=0x8f10a70, e=0xbfb2da18) at kernel/qapplication.cpp:3786
#15 0xb78db94d in KApplication::notify () from /usr/lib/libkdeui.so.5
#16 0xb71c3a3b in QCoreApplication::notifyInternal (this=0xbfb2e32c, receiver=0xbfb2e32c, event=0xbfb2da18) at kernel/qcoreapplication.cpp:602
#17 0xb67d2c0e in QApplicationPrivate::sendMouseEvent (receiver=0x8f10a70, event=0xbfb2da18, alienWidget=0x0, nativeWidget=0x8f10a70, buttonDown=0xb7076200, lastMouseReceiver=@0xb7076204)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#18 0xb6842c96 in QETWidget::translateMouseEvent (this=0x8f10a70, event=0xbfb2e05c) at kernel/qapplication_x11.cpp:4359
#19 0xb6841d37 in QApplication::x11ProcessEvent (this=0xbfb2e32c, event=0xbfb2e05c) at kernel/qapplication_x11.cpp:3421
#20 0xb686ccfa in x11EventSourceDispatch (s=0x8de7568, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#21 0xb5b15b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#22 0xb5b190eb in ?? () from /usr/lib/libglib-2.0.so.0
#23 0xb5b19268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#24 0xb71ef438 in QEventDispatcherGlib::processEvents (this=0x8dda1d0, flags={i = -1078795752}) at kernel/qeventdispatcher_glib.cpp:323
#25 0xb686c3f5 in QGuiEventDispatcherGlib::processEvents (this=0x8dda1d0, flags={i = -1078795704}) at kernel/qguieventdispatcher_glib.cpp:202
#26 0xb71c206a in QEventLoop::processEvents (this=0xbfb2e2c0, flags={i = -1078795640}) at kernel/qeventloop.cpp:149
#27 0xb71c24aa in QEventLoop::exec (this=0xbfb2e2c0, flags={i = -1078795576}) at kernel/qeventloop.cpp:200
#28 0xb71c4959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#29 0xb67cada7 in QApplication::exec () at kernel/qapplication.cpp:3553
#30 0x08064fa9 in _start ()