Bug 305218

Summary: ktp-text-ui sometimes crashes on new message
Product: [Unmaintained] telepathy Reporter: Chris Lee <clee>
Component: text-uiAssignee: Telepathy Bugs <kde-telepathy-bugs>
Status: RESOLVED FIXED    
Severity: crash CC: kde
Priority: NOR    
Version: 0.3.1   
Target Milestone: Future   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Chris Lee 2012-08-15 21:52:46 UTC 
Application: ktp-text-ui (0.3)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-26-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
I was logged into a jabber chat room and sent a message to the room. Does not happen every time, but often enough to be really annoying.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Telepathy Text Ui (ktp-text-ui), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f53023ee780 (LWP 17579))]

Thread 4 (Thread 0x7f52e9703700 (LWP 17580)):
#0  0x00007f52fdc48d84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f52fa953dec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f52fa953f19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f52fdc44e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f52fe8e14bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f52e8f02700 (LWP 17581)):
#0  0x00007f52f8cbe210 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f52f8cbef04 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f52f8cbf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f52fffa1426 in QEventDispatcherGlib::processEvents (this=0x7f52e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f52fff70c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f52fff70ed7 in QEventLoop::exec (this=0x7f52e8f01e00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f52ffe6ffa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f52ffe72fcb in QThreadPrivate::start (arg=0x1d2a1c0) at thread/qthread_unix.cpp:298
#8  0x00007f52fdc44e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f52fe8e14bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f52a3205700 (LWP 17583)):
#0  0x00007f52fe8d5b03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f52f8cbf036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f52f8cbf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f52fffa1426 in QEventDispatcherGlib::processEvents (this=0x7f529c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f52fff70c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f52fff70ed7 in QEventLoop::exec (this=0x7f52a3204dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f52ffe6ffa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f52fff509ff in QInotifyFileSystemWatcherEngine::run (this=0x1f133c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f52ffe72fcb in QThreadPrivate::start (arg=0x1f133c0) at thread/qthread_unix.cpp:298
#9  0x00007f52fdc44e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f52fe8e14bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f53023ee780 (LWP 17579)):
[KCrash Handler]
#6  Tp::Contact::alias (this=0x0) at /build/buildd/telepathy-qt4-0.9.1/TelepathyQt/contact.cpp:389
#7  0x00007f53002e387a in ChatWidget::notifyAboutIncomingMessage (this=0x1d1ce30, message=...) at /build/buildd/ktp-text-ui-0.3.1/lib/chat-widget.cpp:604
#8  0x00007f53002e5969 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=0x1d1ce30, _c=<optimized out>) at /build/buildd/ktp-text-ui-0.3.1/obj-x86_64-linux-gnu/lib/chat-widget.moc:110
#9  ChatWidget::qt_static_metacall (_o=0x1d1ce30, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /build/buildd/ktp-text-ui-0.3.1/obj-x86_64-linux-gnu/lib/chat-widget.moc:93
#10 0x00007f52fff86281 in QMetaObject::activate (sender=0x1c40260, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff88d25b30) at kernel/qobject.cpp:3547
#11 0x00007f5300eb7ca5 in Tp::TextChannel::messageReceived (this=<optimized out>, _t1=...) at /build/buildd/telepathy-qt4-0.9.1/obj-x86_64-linux-gnu/TelepathyQt/_gen/text-channel.moc.hpp:191
#12 0x00007f5300ebdaab in Tp::TextChannel::Private::processMessageQueue (this=0x1a9bbe0) at /build/buildd/telepathy-qt4-0.9.1/TelepathyQt/text-channel.cpp:363
#13 0x00007f5300ebe901 in Tp::TextChannel::onMessageReceived (this=0x1c40260, parts=...) at /build/buildd/telepathy-qt4-0.9.1/TelepathyQt/text-channel.cpp:1113
#14 0x00007f5300ec272a in Tp::TextChannel::qt_static_metacall (_o=0x1c40260, _c=<optimized out>, _id=17, _a=0x7fff88d25ff0) at /build/buildd/telepathy-qt4-0.9.1/obj-x86_64-linux-gnu/TelepathyQt/_gen/text-channel.moc.hpp:128
#15 0x00007f52fff86281 in QMetaObject::activate (sender=0x1c7cbc0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff88d25ff0) at kernel/qobject.cpp:3547
#16 0x00007f5300c87565 in Tp::Client::ChannelInterfaceMessagesInterface::MessageReceived (this=<optimized out>, _t1=...) at /build/buildd/telepathy-qt4-0.9.1/obj-x86_64-linux-gnu/TelepathyQt/_gen/cli-channel.moc.hpp:1422
#17 0x00007f5300c877d4 in Tp::Client::ChannelInterfaceMessagesInterface::qt_static_metacall (_o=0x1c7cbc0, _c=<optimized out>, _id=2, _a=0x7fff88d26210) at /build/buildd/telepathy-qt4-0.9.1/obj-x86_64-linux-gnu/TelepathyQt/_gen/cli-channel.moc.hpp:1349
#18 0x00007f5300c878fb in Tp::Client::ChannelInterfaceMessagesInterface::qt_metacall (this=0x1c7cbc0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff88d26210) at /build/buildd/telepathy-qt4-0.9.1/obj-x86_64-linux-gnu/TelepathyQt/_gen/cli-channel.moc.hpp:1398
#19 0x00007f52ffb9d37b in QDBusConnectionPrivate::deliverCall (this=0x1a91650, object=0x1c7cbc0, msg=..., metaTypes=..., slotIdx=10) at qdbusintegrator.cpp:947
#20 0x00007f52fff8b446 in QObject::event (this=0x1c7cbc0, e=<optimized out>) at kernel/qobject.cpp:1195
#21 0x00007f52ff077894 in notify_helper (e=0x31a83d0, receiver=0x1c7cbc0, this=0x1aabd00) at kernel/qapplication.cpp:4559
#22 QApplicationPrivate::notify_helper (this=0x1aabd00, receiver=0x1c7cbc0, e=0x31a83d0) at kernel/qapplication.cpp:4531
#23 0x00007f52ff07c713 in QApplication::notify (this=0x1aa1ca0, receiver=0x1c7cbc0, e=0x31a83d0) at kernel/qapplication.cpp:4420
#24 0x00007f53019039e6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#25 0x00007f52fff71e9c in QCoreApplication::notifyInternal (this=0x1aa1ca0, receiver=0x1c7cbc0, event=0x31a83d0) at kernel/qcoreapplication.cpp:876
#26 0x00007f52fff75c6a in sendEvent (event=0x31a83d0, receiver=0x1c7cbc0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1a73670) at kernel/qcoreapplication.cpp:1500
#28 0x00007f52fffa0f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#29 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#30 0x00007f52f8cbed53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f52f8cbf0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f52f8cbf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f52fffa13bf in QEventDispatcherGlib::processEvents (this=0x1aac500, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#34 0x00007f52ff11fd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#35 0x00007f52fff70c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#36 0x00007f52fff70ed7 in QEventLoop::exec (this=0x7fff88d26ba0, flags=...) at kernel/qeventloop.cpp:204
#37 0x00007f52fff75f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#38 0x000000000040aeed in main (argc=1, argv=0x7fff88d27028) at /build/buildd/ktp-text-ui-0.3.1/app/main.cpp:83

Reported using DrKonqi
Comment 1 David Edmundson 2012-08-16 21:38:53 UTC 
This can happen if we get a message without a sender.

I'd like to find out the cause of this before we blindly put in a check, as this could be legit, or a symptom of another problem.

Any idea what the message is that causes this crash? Could it be some sort of service message? Is this on a public jabber server we could test on?
Comment 2 Chris Lee 2012-08-16 22:15:58 UTC 
This is on 0.3.1, which is a much older release... I upgraded the packages on my machine to 0.4.1, from the Ubuntu quantal repo, and so far I haven't been able to reproduce the crash. I think it may have already been fixed. I'll update this after a couple more days.
Comment 3 David Edmundson 2012-10-26 07:05:24 UTC 
Original reporter can't reproduce after upgrade. Closing.