Bug 244780

Summary: Plasma crash during network connect (Qt 4.7) [QMutex::lock, QNetworkConfigurationManagerPrivate::configurationRemoved, ..., QBearerEngine::configurationRemoved]
Product: [Unmaintained] plasma4 Reporter: Scott Kitterman <kde>
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED UPSTREAM    
Severity: crash CC: a.j.ball, adam, cabiri.tech, garystriplett, helio.loureiro, morynicz, ricardo, ticker.4.news, zuluschwarz
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Scott Kitterman 2010-07-15 19:44:42 UTC 
Application: plasma-netbook (0.1)
KDE Platform Version: 4.4.92 (KDE 4.4.92 (KDE 4.5 RC2))
Qt Version: 4.7.0
Operating System: Linux 2.6.35-8-generic i686
Distribution: Ubuntu maverick (development branch)

-- Information about the crash:
Shortly after restarting the system, it was opening kwallet to the network management widget could connect and I got this crash.

-- Backtrace:
Application: Plasma Netbook (plasma-netbook), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77eb720 (LWP 1544))]

Thread 3 (Thread 0xaf5c0b70 (LWP 1581)):
#0  0x02eeee46 in clock_gettime () from /lib/librt.so.1
#1  0x0442e7eb in do_gettime () at tools/qelapsedtimer_unix.cpp:105
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:119
#3  0x04504ac5 in QTimerInfoList::updateCurrentTime (this=0x8e2316c) at kernel/qeventdispatcher_unix.cpp:339
#4  0x04504b0a in QTimerInfoList::timerWait (this=0x8e2316c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x04502b98 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xaf5c00ac) at kernel/qeventdispatcher_glib.cpp:136
#6  0x04502c2d in timerSourcePrepare (source=0x0, timeout=0x2ef2ff4) at kernel/qeventdispatcher_glib.cpp:169
#7  0x02f597ca in g_main_context_prepare () from /lib/libglib-2.0.so.0
#8  0x02f59bd9 in ?? () from /lib/libglib-2.0.so.0
#9  0x02f5a1a8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#10 0x0450298f in QEventDispatcherGlib::processEvents (this=0x8d09cc0, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#11 0x044d2cb9 in QEventLoop::processEvents (this=0xaf5c0280, flags=) at kernel/qeventloop.cpp:149
#12 0x044d313a in QEventLoop::exec (this=0xaf5c0280, flags=...) at kernel/qeventloop.cpp:201
#13 0x043d0a8e in QThread::exec (this=0x8e202a8) at thread/qthread.cpp:490
#14 0x044b1eab in QInotifyFileSystemWatcherEngine::run (this=0x8e202a8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x043d3d09 in QThreadPrivate::start (arg=0x8e202a8) at thread/qthread_unix.cpp:266
#16 0x00a36cc9 in start_thread () from /lib/libpthread.so.0
#17 0x00f3e73e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xaedb7b70 (LWP 1614)):
#0  0x00127422 in __kernel_vsyscall ()
#1  0x00a3b4bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x00f4be2d in pthread_cond_wait () from /lib/libc.so.6
#3  0x029ec705 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0x029ec7e1 in ?? () from /usr/lib/libQtWebKit.so.4
#5  0x00a36cc9 in start_thread () from /lib/libpthread.so.0
#6  0x00f3e73e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb77eb720 (LWP 1544)):
[KCrash Handler]
#7  QMutex::lock (this=0xc) at thread/qmutex.cpp:151
#8  0x007e09b6 in QNetworkConfigurationManagerPrivate::configurationRemoved (this=0x8e40cc0, ptr=) at bearer/qnetworkconfigmanager_p.cpp:309
#9  0x00840f48 in QNetworkConfigurationManagerPrivate::qt_metacall (this=0x8e40cc0, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfd80ca8) at .moc/release-shared/moc_qnetworkconfigmanager_p.cpp:105
#10 0x044d9f3a in QMetaObject::metacall (object=0x8e40cc0, cl=3218607272, idx=12, argv=0xbfd80ca8) at kernel/qmetaobject.cpp:237
#11 0x044ecccd in QMetaObject::activate (sender=0x9146020, m=0x89c564, local_signal_index=1, argv=0xc) at kernel/qobject.cpp:3280
#12 0x007e3da3 in QBearerEngine::configurationRemoved (this=0x9146020, _t1=...) at .moc/release-shared/moc_qbearerengine_p.cpp:101
#13 0x0409419d in QNetworkManagerEngine::parseConnection (this=0x9146020, service=..., settingsPath=..., map=...) at qnetworkmanagerengine.cpp:763
#14 0x04094f34 in QNetworkManagerEngine::newConnection (this=0x9146020, path=..., settings=0x0) at qnetworkmanagerengine.cpp:440
#15 0x0409a9f6 in QNetworkManagerEngine::qt_metacall (this=0x9146020, _c=QMetaObject::InvokeMetaMethod, _id=15, _a=0xbfd81008) at .moc/release-shared/moc_qnetworkmanagerengine.cpp:111
#16 0x044d9f3a in QMetaObject::metacall (object=0x9146020, cl=3218607272, idx=15, argv=0xbfd81008) at kernel/qmetaobject.cpp:237
#17 0x044ecccd in QMetaObject::activate (sender=0x8e36978, m=0x40a59b8, local_signal_index=0, argv=0xc) at kernel/qobject.cpp:3280
#18 0x04099d63 in QNetworkManagerSettings::newConnection (this=0x8e36978, _t1=...) at .moc/release-shared/moc_qnetworkmanagerservice.cpp:490
#19 0x0409a39b in QNetworkManagerSettings::qt_metacall (this=0x8e36978, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfd8116c) at .moc/release-shared/moc_qnetworkmanagerservice.cpp:478
#20 0x0057618c in QDBusConnectionPrivate::deliverCall (this=0x8ea64a0, object=0x8e36978, msg=..., metaTypes=..., slotIdx=4) at qdbusintegrator.cpp:909
#21 0x005818c7 in QDBusCallDeliveryEvent::placeMetaCall(QObject*) () from /usr/lib/libQtDBus.so.4
#22 0x044e6cf2 in QObject::event (this=0x8e36978, e=0x0) at kernel/qobject.cpp:1219
#23 0x0139408c in QApplicationPrivate::notify_helper (this=0x8a837c8, receiver=0x8e36978, e=0x97a6748) at kernel/qapplication.cpp:4389
#24 0x0139a0ce in QApplication::notify (this=0x8a7a3b0, receiver=0x8e36978, e=0x97a6748) at kernel/qapplication.cpp:3791
#25 0x05e6c06a in KApplication::notify (this=0x8a7a3b0, receiver=0x8e36978, event=0x97a6748) at ../../kdeui/kernel/kapplication.cpp:309
#26 0x044d41eb in QCoreApplication::notifyInternal (this=0x8a7a3b0, receiver=0x8e36978, event=0x97a6748) at kernel/qcoreapplication.cpp:732
#27 0x044d743b in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x8a63460) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#28 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8a63460) at kernel/qcoreapplication.cpp:1373
#29 0x044d75fd in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1266
#30 0x04502e5f in QCoreApplication::sendPostedEvents (s=0x8a85b68) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#31 postEventSourceDispatch (s=0x8a85b68) at kernel/qeventdispatcher_glib.cpp:276
#32 0x02f561b5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#33 0x02f59fc8 in ?? () from /lib/libglib-2.0.so.0
#34 0x02f5a1a8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#35 0x04502955 in QEventDispatcherGlib::processEvents (this=0x8a83758, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#36 0x01454ac5 in QGuiEventDispatcherGlib::processEvents (this=0x8a83758, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x044d2cb9 in QEventLoop::processEvents (this=0xbfd81994, flags=) at kernel/qeventloop.cpp:149
#38 0x044d313a in QEventLoop::exec (this=0xbfd81994, flags=...) at kernel/qeventloop.cpp:201
#39 0x044d76bf in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#40 0x01392eb7 in QApplication::exec () at kernel/qapplication.cpp:3665
#41 0x00c809ad in kdemain (argc=1, argv=0xbfd81bb4) at ../../../../plasma/netbook/shell/main.cpp:67
#42 0x0804860b in main (argc=1, argv=0xbfd81bb4) at plasma-netbook_dummy.cpp:3

Reported using DrKonqi
Comment 1 Christoph Feck 2010-08-03 11:20:37 UTC 
*** Bug 246475 has been marked as a duplicate of this bug. ***
Comment 2 Pino Toscano 2010-08-10 20:39:50 UTC 
*** Bug 247282 has been marked as a duplicate of this bug. ***
Comment 3 Pino Toscano 2010-08-10 20:40:42 UTC 
Sounds like a problem of the new Qt 4.7 network classes.
Comment 4 ticker.4.news 2010-10-16 22:12:31 UTC 
Created attachment 52576 [details]
New crash information added by DrKonqi

plasma-desktop (0.3) on KDE Platform 4.5.1 (KDE 4.5.1) using Qt 4.7.0

- What I was doing when the application crashed:

try to connect wlan with networkmanager - crasht

-- Backtrace (Reduced):
#7  QMutex::lock (this=0xc) at thread/qmutex.cpp:151
#8  0x00e29166 in QNetworkConfigurationManagerPrivate::configurationRemoved (this=0x986b0d0, ptr=) at bearer/qnetworkconfigmanager_p.cpp:313
#9  0x00e8bb68 in QNetworkConfigurationManagerPrivate::qt_metacall (this=0x986b0d0, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbffa76e8) at .moc/release-shared/moc_qnetworkconfigmanager_p.cpp:105
[...]
[...]
#12 0x00e2c213 in QBearerEngine::configurationRemoved (this=0x98cdce0, _t1=...) at .moc/release-shared/moc_qbearerengine_p.cpp:101
#13 0x04cca7aa in QNetworkManagerEngine::parseConnection (this=0x98cdce0, service=..., settingsPath=..., map=...) at qnetworkmanagerengine.cpp:740
Comment 5 Pino Toscano 2010-10-24 20:10:18 UTC 
*** Bug 255116 has been marked as a duplicate of this bug. ***
Comment 6 Ricardo Graça 2010-11-13 23:37:05 UTC 
This also happens on my system. I imagine it doesn't have more votes because that of the few people that try plasma-netbook, there are even fewer with a bugzilla account. I couldn't even login to my system to disable plasma-netbook and go back to regular plasma, because it would crash. The only option is to click on cancel on the kwallet dialog so the whole plasma doesn't crash. It's a shame because plasma-netbook is looking really nice.
Comment 7 Pino Toscano 2010-12-04 15:59:59 UTC 
*** Bug 258804 has been marked as a duplicate of this bug. ***
Comment 8 Marco Martin 2010-12-30 17:13:37 UTC 
unfortunately this depends from Qt and we can't do much, in particular from Qt mobility network management bits.
try to update Qt/QtMobility
Comment 9 Pino Toscano 2011-01-16 12:28:14 UTC 
*** Bug 263297 has been marked as a duplicate of this bug. ***
Comment 10 Lamarque V. Souza 2011-04-06 02:55:20 UTC 
*** Bug 270183 has been marked as a duplicate of this bug. ***
Comment 11 Lamarque V. Souza 2011-04-06 02:55:58 UTC 
*** Bug 269986 has been marked as a duplicate of this bug. ***
Comment 12 Beat Wolf 2011-04-12 10:31:02 UTC 
*** Bug 270731 has been marked as a duplicate of this bug. ***
Comment 13 Lamarque V. Souza 2011-05-03 01:22:08 UTC 
*** Bug 272229 has been marked as a duplicate of this bug. ***