Application that crashed: konqueror
Version of the application: 4.3.2 (KDE 4.3.2)
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-15-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
At first I opened a browser(konqueror) to visit igoogle,then I do something else while waiting for the response of the website.When i returned i found a dialog ask me something like"Whether you want to continue when leave the safty mode",When I clicked the button "continue",the Konqueror crashed

 -- Backtrace:
Application: Konqueror (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f7f72965750 (LWP 3876))]

Thread 2 (Thread 0x7f7f5ba10910 (LWP 3924)):
#0  0x00007f7f6f1276dd in __pthread_mutex_unlock_usercnt (mutex=0x1004bf8) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x1004bf8) at pthread_mutex_unlock.c:289
#2  0x00007f7f6f3768cf in g_main_context_acquire () from /lib/libglib-2.0.so.0
#3  0x00007f7f6f378102 in ?? () from /lib/libglib-2.0.so.0
#4  0x00007f7f6f3786b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x00007f7f724bc1fe in QEventDispatcherGlib::processEvents (this=0x1004530, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:329
#6  0x00007f7f72492532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#7  0x00007f7f72492904 in QEventLoop::exec (this=0x7f7f5ba10010, flags=) at kernel/qeventloop.cpp:201
#8  0x00007f7f723aa6cb in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#9  0x00007f7f72475b78 in QInotifyFileSystemWatcherEngine::run (this=0x1003a70) at io/qfilesystemwatcher_inotify.cpp:214
#10 0x00007f7f723ad445 in QThreadPrivate::start (arg=0x1003a70) at thread/qthread_unix.cpp:188
#11 0x00007f7f6f123a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#12 0x00007f7f6fd037bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7f72965750 (LWP 3876)):
[KCrash Handler]
#5  KIO::Slave::deref (this=0x2220cd0) at ../../kio/kio/slave.cpp:242
#6  0x00007f7f7161f159 in KIO::Slave::gotInput (this=0x2220cd0) at ../../kio/kio/slave.cpp:335
#7  0x00007f7f7162126c in KIO::Slave::qt_metacall (this=0x2220cd0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff8ef30f80) at ./slave.moc:76
#8  0x00007f7f724a8ddc in QMetaObject::activate (sender=0x1cade30, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x29100) at kernel/qobject.cpp:3113
#9  0x00007f7f7153bf57 in KIO::ConnectionPrivate::dequeue (this=0x2001240) at ../../kio/kio/connection.cpp:82
#10 0x00007f7f7153c07d in KIO::Connection::qt_metacall (this=0x1cade30, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x65bd720) at ./connection.moc:73
#11 0x00007f7f724a30f9 in QObject::event (this=0x1cade30, e=0x1700580) at kernel/qobject.cpp:1111
#12 0x00007f7f70443efc in QApplicationPrivate::notify_helper (this=0x797750, receiver=0x1cade30, e=0x1700580) at kernel/qapplication.cpp:4056
#13 0x00007f7f7044b1ce in QApplication::notify (this=0x7fff8ef31a80, receiver=0x1cade30, e=0x1700580) at kernel/qapplication.cpp:4021
#14 0x00007f7f7107aab6 in KApplication::notify (this=0x7fff8ef31a80, receiver=0x1cade30, event=0x1700580) at ../../kdeui/kernel/kapplication.cpp:302
#15 0x00007f7f72493c2c in QCoreApplication::notifyInternal (this=0x7fff8ef31a80, receiver=0x1cade30, event=0x1700580) at kernel/qcoreapplication.cpp:610
#16 0x00007f7f7249480a in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x6ff4d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x6ff4d0) at kernel/qcoreapplication.cpp:1247
#18 0x00007f7f724bc533 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#19 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:210
#20 0x00007f7f6f374bbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#21 0x00007f7f6f378588 in ?? () from /lib/libglib-2.0.so.0
#22 0x00007f7f6f3786b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#23 0x00007f7f724bc1a6 in QEventDispatcherGlib::processEvents (this=0x702040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#24 0x00007f7f704d84be in QGuiEventDispatcherGlib::processEvents (this=0x2220cd0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#25 0x00007f7f72492532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#26 0x00007f7f72492904 in QEventLoop::exec (this=0x7fff8ef31880, flags=) at kernel/qeventloop.cpp:201
#27 0x00007f7f72494ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#28 0x00007f7f67543e26 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../apps/konqueror/src/konqmain.cpp:271
#29 0x0000000000406da8 in launch (argc=2, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=16, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x753c64 "yandy;1259641113;757412;2808_TIME1254568") at ../../kinit/kinit.cpp:677
#30 0x0000000000407aa0 in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#31 0x0000000000407f51 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#32 0x0000000000408bb2 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi