Bug 359891

Summary:	konqueror random crashes when clicking on links
Product:	[Applications] konqueror	Reporter:	Kwanza.Pili
Component:	general	Assignee:	Konqueror Developers <konq-bugs>
Status:	RESOLVED DUPLICATE
Severity:	crash	Keywords:	drkonqi
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Compiled Sources
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Kwanza.Pili 2016-02-28 16:42:55 UTC

Application: konqueror (4.14.17)
KDE Platform Version: 4.14.17 (Compiled from sources)
Qt Version: 4.8.6
Operating System: Linux 4.4.1-8 x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

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

Navigate through opensuse download page, then when I tried to click a download link, the application crashed. A similar crash occured when I clicked on a google link. So the website is probably not the issue; I think that is incidental. The problem could be somthing to do with QT/KDE plugins?

The crash can be reproduced sometimes.

-- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f43fab86900 (LWP 2543))]

Thread 5 (Thread 0x7f43dbae5700 (LWP 2546)):
#0  0x00007f43f927307f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f43e15e4eb6 in WTF::TCMalloc_PageHeap::scavengerThread() () at /usr/lib64/libQtWebKit.so.4
#2  0x00007f43e15e4ee9 in  () at /usr/lib64/libQtWebKit.so.4
#3  0x00007f43f926d4a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f43f77fabed in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f43da9e3700 (LWP 2550)):
#0  0x00007f43f77f229d in poll () at /lib64/libc.so.6
#1  0x00007f43f3f1edd4 in  () at /opt/gnome/lib64/libglib-2.0.so.0
#2  0x00007f43f3f1eedc in g_main_context_iteration () at /opt/gnome/lib64/libglib-2.0.so.0
#3  0x00007f43f9632fde in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#4  0x00007f43f9604d4f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#5  0x00007f43f9605045 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f43f95024df in QThread::exec() () at /usr/lib64/libQtCore.so.4
#7  0x00007f43f9504bbf in  () at /usr/lib64/libQtCore.so.4
#8  0x00007f43f926d4a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f43f77fabed in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f43d98c6700 (LWP 2561)):
#0  0x00007f43f927307f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f43e1357b3d in JSC::BlockAllocator::blockFreeingThreadMain() () at /usr/lib64/libQtWebKit.so.4
#2  0x00007f43e160ca06 in WTF::wtfThreadEntryPoint(void*) () at /usr/lib64/libQtWebKit.so.4
#3  0x00007f43f926d4a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f43f77fabed in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f43927ef700 (LWP 3376)):
#0  0x00007f43f77ee27d in read () at /lib64/libc.so.6
#1  0x00007f43dd776073 in  () at /usr/lib64/tls/libnvidia-tls.so.361.28
#2  0x00007f43f3f60aa0 in  () at /opt/gnome/lib64/libglib-2.0.so.0
#3  0x00007f43f3f1e904 in g_main_context_check () at /opt/gnome/lib64/libglib-2.0.so.0
#4  0x00007f43f3f1ed78 in  () at /opt/gnome/lib64/libglib-2.0.so.0
#5  0x00007f43f3f1eedc in g_main_context_iteration () at /opt/gnome/lib64/libglib-2.0.so.0
#6  0x00007f43f9632fde in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#7  0x00007f43f9604d4f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#8  0x00007f43f9605045 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#9  0x00007f43f95024df in QThread::exec() () at /usr/lib64/libQtCore.so.4
#10 0x00007f43efdbd6de in  () at /usr/lib64/libkio.so.5
#11 0x00007f43f9504bbf in  () at /usr/lib64/libQtCore.so.4
#12 0x00007f43f926d4a4 in start_thread () at /lib64/libpthread.so.0
#13 0x00007f43f77fabed in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f43fab86900 (LWP 2543)):
[KCrash Handler]
#6  0x00007f4370959724 in gdk_display_open () at /opt/gnome/lib64/libgdk-x11-2.0.so.0
#7  0x00007f437092a69f in gdk_display_open_default_libgtk_only () at /opt/gnome/lib64/libgdk-x11-2.0.so.0
#8  0x00007f4370cf4a15 in gtk_init () at /opt/gnome/lib64/libgtk-x11-2.0.so.0
#9  0x00007f43e0ad786b in WebCore::initializeGtk(QLibrary*) () at /usr/lib64/libQtWebKit.so.4
#10 0x00007f43e0ad7b4f in WebCore::PluginPackage::load() () at /usr/lib64/libQtWebKit.so.4
#11 0x00007f43e0ad7d66 in WebCore::PluginPackage::fetchInfo() () at /usr/lib64/libQtWebKit.so.4
#12 0x00007f43e08b2f36 in WebCore::PluginPackage::createPackage(WTF::String const&, long const&) () at /usr/lib64/libQtWebKit.so.4
#13 0x00007f43e08b0745 in WebCore::PluginDatabase::refresh() () at /usr/lib64/libQtWebKit.so.4
#14 0x00007f43e08b1881 in WebCore::PluginDatabase::installedPlugins(bool) () at /usr/lib64/libQtWebKit.so.4
#15 0x00007f43e01b0881 in WebCore::FrameLoaderClientQt::canShowMIMEType(WTF::String const&) const () at /usr/lib64/libQtWebKit.so.4
#16 0x00007f43e01b05fc in WebCore::FrameLoaderClientQt::dispatchDecidePolicyForResponse(void (WebCore::PolicyChecker::*)(WebCore::PolicyAction), WebCore::ResourceResponse const&, WebCore::ResourceRequest const&) () at /usr/lib64/libQtWebKit.so.4
#17 0x00007f43e07612d3 in WebCore::PolicyChecker::checkContentPolicy(WebCore::ResourceResponse const&, void (*)(void*, WebCore::PolicyAction), void*) () at /usr/lib64/libQtWebKit.so.4
#18 0x00007f43e07596a5 in WebCore::MainResourceLoader::didReceiveResponse(WebCore::ResourceResponse const&) () at /usr/lib64/libQtWebKit.so.4
#19 0x00007f43e0aaa6a2 in WebCore::QNetworkReplyHandler::sendResponseIfNeeded() () at /usr/lib64/libQtWebKit.so.4
#20 0x00007f43e0aa82bf in WebCore::QNetworkReplyHandlerCallQueue::flush() [clone .part.56] () at /usr/lib64/libQtWebKit.so.4
#21 0x00007f43e0aa88b7 in WebCore::QNetworkReplyWrapper::emitMetaDataChanged() () at /usr/lib64/libQtWebKit.so.4
#22 0x00007f43e0aa8990 in WebCore::QNetworkReplyWrapper::receiveSniffedMIMEType() () at /usr/lib64/libQtWebKit.so.4
#23 0x00007f43e0aa8bab in WebCore::QNetworkReplyWrapper::receiveMetaData() () at /usr/lib64/libQtWebKit.so.4
#24 0x00007f43f961a0fa in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/libQtCore.so.4
#25 0x00007f43efccd347 in  () at /usr/lib64/libkio.so.5
#26 0x00007f43f961a0fa in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/libQtCore.so.4
#27 0x00007f43efd09e57 in KIO::TransferJob::mimetype(KIO::Job*, QString const&) () at /usr/lib64/libkio.so.5
#28 0x00007f43efd0c782 in KIO::TransferJob::slotMimetype(QString const&) () at /usr/lib64/libkio.so.5
#29 0x00007f43f961a0fa in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/libQtCore.so.4
#30 0x00007f43efdae965 in KIO::SlaveInterface::mimeType(QString const&) () at /usr/lib64/libkio.so.5
#31 0x00007f43efdb06cb in KIO::SlaveInterface::dispatch(int, QByteArray const&) () at /usr/lib64/libkio.so.5
#32 0x00007f43efdae1dd in KIO::SlaveInterface::dispatch() () at /usr/lib64/libkio.so.5
#33 0x00007f43efda187a in KIO::Slave::gotInput() () at /usr/lib64/libkio.so.5
#34 0x00007f43f961a0fa in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/libQtCore.so.4
#35 0x00007f43efcd60f7 in  () at /usr/lib64/libkio.so.5
#36 0x00007f43f961e49e in QObject::event(QEvent*) () at /usr/lib64/libQtCore.so.4
#37 0x00007f43f878379c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#38 0x00007f43f8789cdd in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#39 0x00007f43fa6436ea in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#40 0x00007f43f960618d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#41 0x00007f43f960945d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQtCore.so.4
#42 0x00007f43f96337fe in  () at /usr/lib64/libQtCore.so.4
#43 0x00007f43f3f1ec07 in g_main_context_dispatch () at /opt/gnome/lib64/libglib-2.0.so.0
#44 0x00007f43f3f1ee38 in  () at /opt/gnome/lib64/libglib-2.0.so.0
#45 0x00007f43f3f1eedc in g_main_context_iteration () at /opt/gnome/lib64/libglib-2.0.so.0
#46 0x00007f43f9632fbe in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#47 0x00007f43f88206a6 in  () at /usr/lib64/libQtGui.so.4
#48 0x00007f43f9604d4f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#49 0x00007f43f9605045 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#50 0x00007f43f960a499 in QCoreApplication::exec() () at /usr/lib64/libQtCore.so.4
#51 0x00007f43f0f5153f in kdemain () at /usr/lib64/libkdeinit4_konqueror.so
#52 0x00005561d4f15eca in  ()
#53 0x00005561d4f16db7 in  ()
#54 0x00005561d4f17506 in  ()
#55 0x00005561d4f12cf3 in  ()
#56 0x00007f43f7731610 in __libc_start_main () at /lib64/libc.so.6
#57 0x00005561d4f13b89 in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 356010.

Possible duplicates by query: bug 359526, bug 359134, bug 357953, bug 356010, bug 351216.

Reported using DrKonqi

Comment 1 Kwanza.Pili 2016-03-11 18:43:48 UTC

After an awful lot of debugging and googling, I think I found the culprit. It seems to be the evince-browser-plugin. For whatever reason, konqueror tries to load it even when the link does not refer to a pdf file. The problem does to affect other web browsers (firefox, midori) which all share the same plugins. 

Anyway, the workaround it to remove evince-browser-plugin in case anyone encounters the same issue.

Comment 2 Christoph Feck 2016-10-25 23:58:49 UTC


*** This bug has been marked as a duplicate of bug 340873 ***