Bug 352259 - segfault in QV4::ExecutionEngine::toVariant()
Summary: segfault in QV4::ExecutionEngine::toVariant()
Status: RESOLVED UPSTREAM
Alias: None
Product: kwin
Classification: Plasma
Component: aurorae (show other bugs)
Version: 5.3.2
Platform: Fedora RPMs Linux
: NOR crash
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: drkonqi
: 352514 353461 353464 353682 354929 355274 357511 357654 358558 359284 359749 360553 361843 362667 (view as bug list)
Depends on:
Blocks:
 
Reported: 2015-09-04 08:23 UTC by augustinus354
Modified: 2016-05-04 16:07 UTC (History)
15 users (show)

See Also:
Latest Commit:
Version Fixed In:

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Description augustinus354 2015-09-04 08:23:17 UTC 
Application: kwin_x11 (5.3.2)

Qt Version: 5.5.0
Operating System: Linux 4.1.4-200.fc22.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
Right after startup, the system freezes upon launching a KDE application like Dolphin (rare) or Okular (often).  In most cases DrKonqi is not started automatically.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcce9d5c900 (LWP 2561))]

Thread 4 (Thread 0x7fccdb7fe700 (LWP 2575)):
#0  0x00000036b58f9063 in select () at /lib64/libc.so.6
#1  0x00000030dc6d541f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /lib64/libQt5Core.so.5
#2  0x00000030dc6d6f1e in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /lib64/libQt5Core.so.5
#3  0x00000030dc6d744e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00000030dc680daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00000030dc49d5a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00000030e92d9245 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00000030dc4a254e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00000036b5407555 in start_thread () at /lib64/libpthread.so.0
#9  0x00000036b5902b9d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fcccbfff700 (LWP 2613)):
#0  0x00000036b540c540 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00000030eb385494 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00000030eb3854d9 in  () at /lib64/libQt5Script.so.5
#3  0x00000036b5407555 in start_thread () at /lib64/libpthread.so.0
#4  0x00000036b5902b9d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fcc43fff700 (LWP 2945)):
#0  0x00000036b58f9063 in select () at /lib64/libc.so.6
#1  0x00000030dc6d541f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /lib64/libQt5Core.so.5
#2  0x00000030dc6d6f1e in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /lib64/libQt5Core.so.5
#3  0x00000030dc6d744e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00000030dc680daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00000030dc49d5a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00000030e92d9245 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00000030dc4a254e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00000036b5407555 in start_thread () at /lib64/libpthread.so.0
#9  0x00000036b5902b9d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fcce9d5c900 (LWP 2561)):
[KCrash Handler]
#6  0x00000030e919c38a in toVariant(QV4::ExecutionEngine*, QV4::Value const&, int, bool, QSet<QV4::Heap::Object*>*) () at /lib64/libQt5Qml.so.5
#7  0x00000030e919c684 in QV4::ExecutionEngine::toVariant(QV4::Value const&, int, bool) () at /lib64/libQt5Qml.so.5
#8  0x00000030e9257c20 in QQmlPropertyPrivate::writeBinding(QObject*, QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /lib64/libQt5Qml.so.5
#9  0x00000030e92c582f in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /lib64/libQt5Qml.so.5
#10 0x00000030e92ced46 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /lib64/libQt5Qml.so.5
#11 0x00000030e9259a4e in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /lib64/libQt5Qml.so.5
#12 0x00000030e9259b17 in QQmlComponentPrivate::completeCreate() () at /lib64/libQt5Qml.so.5
#13 0x00000030e9259980 in QQmlComponent::create(QQmlContext*) () at /lib64/libQt5Qml.so.5
#14 0x00007fcce02849cf in Aurorae::Decoration::init() () at /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#15 0x00000030e8baaa4a in KWin::Decoration::DecorationBridge::createDecoration(KWin::Client*) () at /lib64/libkwin.so.5
#16 0x00000030e8a716e9 in KWin::Client::createDecoration(QRect const&) () at /lib64/libkwin.so.5
#17 0x00000030e8a7b059 in KWin::Client::updateDecoration(bool, bool) () at /lib64/libkwin.so.5
#18 0x00000030e8ad1422 in KWin::Client::manage(unsigned int, bool) () at /lib64/libkwin.so.5
#19 0x00000030e8a6689d in KWin::Workspace::createClient(unsigned int, bool) () at /lib64/libkwin.so.5
#20 0x00000030e8ab6c14 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () at /lib64/libkwin.so.5
#21 0x00000030dc67ff3f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /lib64/libQt5Core.so.5
#22 0x00007fcce31f3fc4 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /lib64/libQt5XcbQpa.so.5
#23 0x00007fcce31f4d73 in QXcbConnection::processXcbEvents() () at /lib64/libQt5XcbQpa.so.5
#24 0x00000030dc6b3021 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#25 0x00000030de5544ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#26 0x00000030de559976 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#27 0x00000030dc68361b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#28 0x00000030dc685a16 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#29 0x00000030dc6d7312 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#30 0x00007fcce325727d in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5XcbQpa.so.5
#31 0x00000030dc680daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#32 0x00000030dc688e6c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#33 0x00000030e8605b07 in kdemain () at /lib64/libkdeinit5_kwin_x11.so
#34 0x00000036b5820700 in __libc_start_main () at /lib64/libc.so.6
#35 0x0000000000400c89 in _start ()

Reported using DrKonqi
Comment 1 Thomas Lübking 2015-09-04 13:04:55 UTC 
Qt bug, very likely https://bugreports.qt.io/browse/QTBUG-44895
also see bug #348091

It's induced by the aurora decoration, so use the breeze engine (not plastik!, since that uses QML as well)
Comment 2 augustinus354 2015-09-08 17:23:30 UTC 
After changing to the breeze windows decoration, the problem has not occurred any more.
Thanks.
Comment 3 Thomas Lübking 2015-09-10 12:42:56 UTC 
*** Bug 352514 has been marked as a duplicate of this bug. ***
Comment 4 Thomas Lübking 2015-09-10 12:43:55 UTC 
Better backtrace from dupe:

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f907fa68900 (LWP 819))]

Thread 4 (Thread 0x7f9059689700 (LWP 844)):
#0  0x00007f907488564f in __libc_enable_asynccancel () from /lib64/libc.so.6
#1  0x00007f907486e055 in select () from /lib64/libc.so.6
#2  0x00007f9075db541f in qt_safe_select (nfds=13, fdread=fdread@entry=0x7f9050000a98, fdwrite=fdwrite@entry=0x7f9050000d28, fdexcept=fdexcept@entry=0x7f9050000fb8, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#3  0x00007f9075db6f1e in select (timeout=0x0, exceptfds=0x7f9050000fb8, writefds=0x7f9050000d28, readfds=0x7f9050000a98, nfds=<optimized out>, this=0x7f90500008e0) at kernel/qeventdispatcher_unix.cpp:320
#4  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f9050000900, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#5  0x00007f9075db744e in QEventDispatcherUNIX::processEvents (this=0x7f90500008e0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#6  0x00007f9075d60daa in QEventLoop::exec (this=this@entry=0x7f9059688ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f9075b7d5a4 in QThread::exec (this=this@entry=0x25c36e0) at thread/qthread.cpp:503
#8  0x00007f907d645245 in QQmlThreadPrivate::run (this=0x25c36e0) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/qml/ftw/qqmlthread.cpp:141
#9  0x00007f9075b8254e in QThreadPrivate::start (arg=0x25c36e0) at thread/qthread_unix.cpp:331
#10 0x00007f9078e78555 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f9074877b9d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f904afae700 (LWP 873)):
#0  0x00007f9078e7d540 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f907e805494 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007f907e8054d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007f9078e78555 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f9074877b9d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f905a22d700 (LWP 950)):
#0  0x00007f907486e063 in select () from /lib64/libc.so.6
#1  0x00007f9075db541f in qt_safe_select (nfds=11, fdread=fdread@entry=0x7f904c000a58, fdwrite=fdwrite@entry=0x7f904c000ce8, fdexcept=fdexcept@entry=0x7f904c000f78, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007f9075db6f1e in select (timeout=0x0, exceptfds=0x7f904c000f78, writefds=0x7f904c000ce8, readfds=0x7f904c000a58, nfds=<optimized out>, this=0x7f904c01fbe0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f904c0008c0, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007f9075db744e in QEventDispatcherUNIX::processEvents (this=0x7f904c01fbe0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007f9075d60daa in QEventLoop::exec (this=this@entry=0x7f905a22cca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f9075b7d5a4 in QThread::exec (this=this@entry=0x2c54690) at thread/qthread.cpp:503
#7  0x00007f907d645245 in QQmlThreadPrivate::run (this=0x2c54690) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f9075b8254e in QThreadPrivate::start (arg=0x2c54690) at thread/qthread_unix.cpp:331
#9  0x00007f9078e78555 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f9074877b9d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f907fa68900 (LWP 819)):
[KCrash Handler]
#5  d (this=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/qv4managed_p.h:128
#6  as<QV4::RegExpObject> (this=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/qv4managed_p.h:176
#7  toVariant (e=0x2bc3640, value=..., typeHint=typeHint@entry=39, createJSValueForObjects=createJSValueForObjects@entry=true, visitedObjects=visitedObjects@entry=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/qv4engine.cpp:1276
#8  0x00007f907d508684 in QV4::ExecutionEngine::toVariant (this=<optimized out>, value=..., typeHint=typeHint@entry=39, createJSValueForObjects=createJSValueForObjects@entry=true) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/jsruntime/qv4engine.cpp:1187
#9  0x00007f907d5c3c20 in QQmlPropertyPrivate::writeBinding (object=0x2cb3650, core=..., context=0x2d55740, expression=expression@entry=0x2b97fa0, result=..., isUndefined=isUndefined@entry=false, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/qml/qqmlproperty.cpp:1548
#10 0x00007f907d63182f in QQmlBinding::update (this=0x2b97f80, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/qml/qqmlbinding.cpp:198
#11 0x00007f907d63ad46 in setEnabled (f=..., e=true, this=0x2b97fb8) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/qml/qqmlabstractbinding_p.h:110
#12 QQmlObjectCreator::finalize (this=0x2d77a50, interrupt=...) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/qml/qqmlobjectcreator.cpp:1194
#13 0x00007f907d5c5a4e in QQmlComponentPrivate::complete (enginePriv=0x2c39b90, state=0x2b9df10) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/qml/qqmlcomponent.cpp:928
#14 0x00007f907d5c5b17 in QQmlComponentPrivate::completeCreate (this=0x2b9de70) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/qml/qqmlcomponent.cpp:964
#15 0x00007f907d5c5980 in QQmlComponent::create (this=0x2b9dd40, context=0x2c4c950) at /usr/src/debug/qtdeclarative-opensource-src-5.5.0/src/qml/qml/qqmlcomponent.cpp:791
#16 0x00007f90596a79cf in Aurorae::Decoration::init (this=0x2ce1630) at ../../../../clients/aurorae/src/aurorae.cpp:313
#17 0x00007f907f3faa4a in KWin::Decoration::DecorationBridge::createDecoration (this=0x24c6400, client=client@entry=0x2d0a260) at ../decorations/decorationbridge.cpp:215
#18 0x00007f907f2c16e9 in KWin::Client::createDecoration (this=this@entry=0x2d0a260, oldgeom=...) at ../client.cpp:430
#19 0x00007f907f2cb059 in KWin::Client::updateDecoration (this=this@entry=0x2d0a260, check_workspace_pos=check_workspace_pos@entry=false, force=force@entry=false) at ../client.cpp:417
#20 0x00007f907f321422 in KWin::Client::manage (this=this@entry=0x2d0a260, w=w@entry=58745839, isMapped=isMapped@entry=false) at ../manage.cpp:382
#21 0x00007f907f2b689d in KWin::Workspace::createClient (this=this@entry=0x24afab0, w=58745839, is_mapped=is_mapped@entry=false) at ../workspace.cpp:440
#22 0x00007f907f306c14 in KWin::Workspace::workspaceEvent (this=0x24afab0, e=0x7f90540018a0) at ../events.cpp:419
#23 0x00007f9075d5ff3f in QAbstractEventDispatcher::filterNativeEvent (this=<optimized out>, eventType=..., message=message@entry=0x7f90540018a0, result=result@entry=0x7ffd017e7fe8) at kernel/qabstracteventdispatcher.cpp:460
#24 0x00007f905d16ffc4 in QXcbConnection::handleXcbEvent (this=this@entry=0x23cd8d0, event=event@entry=0x7f90540018a0) at qxcbconnection.cpp:981
#25 0x00007f905d170d73 in QXcbConnection::processXcbEvents (this=0x23cd8d0) at qxcbconnection.cpp:1471
#26 0x00007f9075d93021 in QObject::event (this=0x23cd8d0, e=<optimized out>) at kernel/qobject.cpp:1246
#27 0x00007f9076a4c4ac in QApplicationPrivate::notify_helper (this=this@entry=0x23c1650, receiver=receiver@entry=0x23cd8d0, e=e@entry=0x7f9054002020) at kernel/qapplication.cpp:3717
#28 0x00007f9076a51976 in QApplication::notify (this=0x7ffd017e8600, receiver=0x23cd8d0, e=0x7f9054002020) at kernel/qapplication.cpp:3500
#29 0x00007f9075d6361b in QCoreApplication::notifyInternal (this=0x7ffd017e8600, receiver=0x23cd8d0, event=event@entry=0x7f9054002020) at kernel/qcoreapplication.cpp:965
#30 0x00007f9075d65a16 in sendEvent (event=0x7f9054002020, receiver=<optimized out>) at kernel/qcoreapplication.h:224
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x23b2020) at kernel/qcoreapplication.cpp:1593
#32 0x00007f9075db7312 in QEventDispatcherUNIX::processEvents (this=0x2401650, flags=flags@entry=...) at kernel/qeventdispatcher_unix.cpp:579
#33 0x00007f905d1d327d in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:62
#34 0x00007f9075d60daa in QEventLoop::exec (this=this@entry=0x7ffd017e8520, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#35 0x00007f9075d68e6c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#36 0x00007f907629724c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1528
#37 0x00007f9076a488e5 in QApplication::exec () at kernel/qapplication.cpp:2977
#38 0x00007f907f6ebb07 in kdemain (argc=1, argv=0x7ffd017e8768) at ../main_x11.cpp:301
#39 0x00007f9074795700 in __libc_start_main () from /lib64/libc.so.6
#40 0x0000000000400c89 in _start ()
Comment 5 Thomas Lübking 2015-10-02 20:14:40 UTC 
*** Bug 353461 has been marked as a duplicate of this bug. ***
Comment 6 Thomas Lübking 2015-10-08 13:08:25 UTC 
*** Bug 353464 has been marked as a duplicate of this bug. ***
Comment 7 Thomas Lübking 2015-10-08 13:13:12 UTC 
*** Bug 353682 has been marked as a duplicate of this bug. ***
Comment 8 Thomas Lübking 2015-11-06 06:49:01 UTC 
*** Bug 354929 has been marked as a duplicate of this bug. ***
Comment 9 Thomas Lübking 2015-11-13 08:49:12 UTC 
*** Bug 355274 has been marked as a duplicate of this bug. ***
Comment 10 Michal Kubeček 2015-11-13 09:25:24 UTC 
I can see this crash (backtrace in bug 355274) on current openSUSE Tumbleweed with Qt 5.5.1 which already has the patch from QTBUG-44895.
Comment 11 Thomas Lübking 2015-11-13 10:51:17 UTC 
crash code in Qt (from your detailed backtrace)

    QV4::ScopedObject o(scope, value);
    Q_ASSERT(o);

    if (QV4::RegExpObject *re = o->as<QV4::RegExpObject>()) // crash here, o is 0x0
        return re->toQRegExp();

What looks a hell lot like the asserts that Jan encountered in the Qt bug...
Comment 12 Thomas Lübking 2016-01-04 14:28:36 UTC 
*** Bug 357511 has been marked as a duplicate of this bug. ***
Comment 13 Thomas Lübking 2016-01-07 15:23:04 UTC 
*** Bug 357654 has been marked as a duplicate of this bug. ***
Comment 14 Thomas Lübking 2016-01-25 21:27:15 UTC 
*** Bug 358558 has been marked as a duplicate of this bug. ***
Comment 15 Thomas Lübking 2016-02-11 20:07:54 UTC 
*** Bug 359284 has been marked as a duplicate of this bug. ***
Comment 16 Thomas Lübking 2016-02-24 12:48:38 UTC 
*** Bug 359749 has been marked as a duplicate of this bug. ***
Comment 17 Arthur Marsh 2016-02-24 13:23:45 UTC 
Under System Settings, Appearance, Application Style, Window Decorations I've switched from Plastik to org.kde.breeze and done one successful logout/login and restart of iceweasel.
Comment 18 Arthur Marsh 2016-02-25 02:43:59 UTC 
Note that I experienced both the bug and the org.kde.breeze work-around under Qt 5.5.1:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=810947#105
Comment 19 Thomas Lübking 2016-03-15 11:39:27 UTC 
*** Bug 360553 has been marked as a duplicate of this bug. ***
Comment 20 Thomas Lübking 2016-04-16 08:34:45 UTC 
*** Bug 361843 has been marked as a duplicate of this bug. ***
Comment 21 Thomas Lübking 2016-05-04 16:07:25 UTC 
*** Bug 362667 has been marked as a duplicate of this bug. ***