Application that crashed: konqueror
Version of the application: 4.3.3 (KDE 4.3.3)
KDE Version: 4.3.3 (KDE 4.3.3)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.6-166.fc12.x86_64 x86_64
Distribution: "Fedora release 12 (Constantine)"

What I was doing when the application crashed:
- Started Konqueror.
- Loaded one page (in my case: www.donnerwetter.de)
- Opened another tab (in my case by Ctrl+t)
- Loaded another page in this new tab (in my case: de.weather.com)
- Pressed Ctrl+Tab
-> Crash

 -- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f82ca47e840 (LWP 3245))]

Thread 4 (Thread 0x7f82ad6b1710 (LWP 3254)):
#0  0x00007f82c4f1eaa3 in poll () from /lib64/libc.so.6
#1  0x00007f82c124f2a5 in send_dg () from /lib64/libresolv.so.2
#2  0x00007f82c1250e54 in __libc_res_nsend () from /lib64/libresolv.so.2
#3  0x00007f82c124d771 in __libc_res_nquery () from /lib64/libresolv.so.2
#4  0x00007f82c124dd01 in __libc_res_nquerydomain () from /lib64/libresolv.so.2
#5  0x00007f82c124e50b in __libc_res_nsearch () from /lib64/libresolv.so.2
#6  0x00007f82aca8a807 in _nss_dns_gethostbyname4_r () from /lib64/libnss_dns.so.2
#7  0x00007f82c4f10944 in gaih_inet () from /lib64/libc.so.6
#8  0x00007f82c4f1270f in getaddrinfo () from /lib64/libc.so.6
#9  0x00007f82c8f6a162 in ?? () from /usr/lib64/libQtNetwork.so.4
#10 0x00007f82c8f5fc22 in QHostInfo::fromName(QString const&) () from /usr/lib64/libQtNetwork.so.4
#11 0x00007f82c93adcdb in ?? () from /usr/lib64/libkio.so.5
#12 0x00007f82c93ae3f7 in ?? () from /usr/lib64/libkio.so.5
#13 0x00007f82c7941d14 in ?? () from /usr/lib64/libQtCore.so.4
#14 0x00007f82c794ad25 in ?? () from /usr/lib64/libQtCore.so.4
#15 0x00007f82c76dba3a in start_thread () from /lib64/libpthread.so.0
#16 0x00007f82c4f27f3d in clone () from /lib64/libc.so.6
#17 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f82a4cb0710 (LWP 3309)):
#0  0x00007f82c4f1eaa3 in poll () from /lib64/libc.so.6
#1  0x00007f82c124f2a5 in send_dg () from /lib64/libresolv.so.2
#2  0x00007f82c1250e54 in __libc_res_nsend () from /lib64/libresolv.so.2
#3  0x00007f82c124d771 in __libc_res_nquery () from /lib64/libresolv.so.2
#4  0x00007f82c124dd01 in __libc_res_nquerydomain () from /lib64/libresolv.so.2
#5  0x00007f82c124e50b in __libc_res_nsearch () from /lib64/libresolv.so.2
#6  0x00007f82aca8a807 in _nss_dns_gethostbyname4_r () from /lib64/libnss_dns.so.2
#7  0x00007f82c4f10944 in gaih_inet () from /lib64/libc.so.6
#8  0x00007f82c4f1270f in getaddrinfo () from /lib64/libc.so.6
#9  0x00007f82c8f6a162 in ?? () from /usr/lib64/libQtNetwork.so.4
#10 0x00007f82c8f5fc22 in QHostInfo::fromName(QString const&) () from /usr/lib64/libQtNetwork.so.4
#11 0x00007f82c93adcdb in ?? () from /usr/lib64/libkio.so.5
#12 0x00007f82c93ae3f7 in ?? () from /usr/lib64/libkio.so.5
#13 0x00007f82c7941d14 in ?? () from /usr/lib64/libQtCore.so.4
#14 0x00007f82c794ad25 in ?? () from /usr/lib64/libQtCore.so.4
#15 0x00007f82c76dba3a in start_thread () from /lib64/libpthread.so.0
#16 0x00007f82c4f27f3d in clone () from /lib64/libc.so.6
#17 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f82a5f92710 (LWP 3352)):
#0  0x00007f82c4f1eaa3 in poll () from /lib64/libc.so.6
#1  0x00007f82c124f2a5 in send_dg () from /lib64/libresolv.so.2
#2  0x00007f82c1250e54 in __libc_res_nsend () from /lib64/libresolv.so.2
#3  0x00007f82c124d771 in __libc_res_nquery () from /lib64/libresolv.so.2
#4  0x00007f82c124dd01 in __libc_res_nquerydomain () from /lib64/libresolv.so.2
#5  0x00007f82c124e634 in __libc_res_nsearch () from /lib64/libresolv.so.2
#6  0x00007f82aca8c338 in _nss_dns_gethostbyname3_r () from /lib64/libnss_dns.so.2
#7  0x00007f82aca8c5f4 in _nss_dns_gethostbyname2_r () from /lib64/libnss_dns.so.2
#8  0x00007f82c4f42009 in gethostbyname2_r@@GLIBC_2.2.5 () from /lib64/libc.so.6
#9  0x00007f82c4f10dc6 in gaih_inet () from /lib64/libc.so.6
#10 0x00007f82c4f1270f in getaddrinfo () from /lib64/libc.so.6
#11 0x00007f82c8104890 in ?? () from /usr/lib64/libkdecore.so.5
#12 0x00007f82c810204a in ?? () from /usr/lib64/libkdecore.so.5
#13 0x00007f82c794ad25 in ?? () from /usr/lib64/libQtCore.so.4
#14 0x00007f82c76dba3a in start_thread () from /lib64/libpthread.so.0
#15 0x00007f82c4f27f3d in clone () from /lib64/libc.so.6
#16 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f82ca47e840 (LWP 3245)):
[KCrash Handler]
#5  0x00007f82c70b8bb1 in QTabWidget::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQtGui.so.4
#6  0x00007f82c897e945 in KTabWidget::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeui.so.5
#7  0x00007f82ca008b75 in KConfigGroup::writeEntry(QString const&, QStringList const&, QFlags<KConfigBase::WriteConfigFlag>) () from /usr/lib64/libkdeinit4_konqueror.so
#8  0x00007f82c7a4508c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#9  0x00007f82c9ffdb2a in KConfigGroup::writeEntry(QString const&, QStringList const&, QFlags<KConfigBase::WriteConfigFlag>) () from /usr/lib64/libkdeinit4_konqueror.so
#10 0x00007f82c7a2f187 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#11 0x00007f82c6c9f62c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#12 0x00007f82c6ca73d9 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#13 0x00007f82c888da76 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#14 0x00007f82c7a2fe6c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#15 0x00007f82c6d2e93a in ?? () from /usr/lib64/libQtGui.so.4
#16 0x00007f82c6d30ec0 in ?? () from /usr/lib64/libQtGui.so.4
#17 0x00007f82c6d0a484 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib64/libQtGui.so.4
#18 0x00007f82c6d3284c in ?? () from /usr/lib64/libQtGui.so.4
#19 0x00007f82c303722e in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#20 0x00007f82c303ac18 in ?? () from /lib64/libglib-2.0.so.0
#21 0x00007f82c303ad3a in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#22 0x00007f82c7a581e6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#23 0x00007f82c6d31ffe in ?? () from /usr/lib64/libQtGui.so.4
#24 0x00007f82c7a2e772 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#25 0x00007f82c7a2eb44 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#26 0x00007f82c7a30cd9 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#27 0x00007f82ca071583 in kdemain () from /usr/lib64/libkdeinit4_konqueror.so
#28 0x00007f82c4e68b1d in __libc_start_main () from /lib64/libc.so.6
#29 0x0000000000400759 in _start ()

This bug may be a duplicate of or related to bug 214360

Reported using DrKonqi