[kde] [Bug 354823] New: Plasma crashes on multiscreen setup activation

Siddhartha Sahu via KDE Bugzilla bugzilla_noreply at kde.org
Wed Nov 4 08:46:27 GMT 2015 

https://bugs.kde.org/show_bug.cgi?id=354823

            Bug ID: 354823
           Summary: Plasma crashes on multiscreen setup activation
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: sh.siddhartha at gmail.com

Application: plasmashell (5.4.90)
 (Compiled from sources)
Qt Version: 5.5.1
Operating System: Linux 4.2.5-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:
Some of the times, attaching secondary screens (Two extra screens using Dell
external dock) crashes Plasma. Kscreen also is not able to detect proper
resolution, so I have to manually set resolutions using xrandr

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9664ad9840 (LWP 8884))]

Thread 7 (Thread 0x7f964d223700 (LWP 8885)):
#0  0x00007f965c4c018d in poll () from /usr/lib/libc.so.6
#1  0x00007f9662986ae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f9662988757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f964e314e89 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f965d0d596e in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f965b1974a4 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f965c4c913d in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7f96466ea700 (LWP 8886)):
#0  0x00007f965c4c018d in poll () from /usr/lib/libc.so.6
#1  0x00007f965742efbc in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f965742f0cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f965d30d34f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f965d2b437a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f965d0d09c4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f9661419c85 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f965d0d596e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f965b1974a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f965c4c913d in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7f9639b78700 (LWP 8887)):
#0  0x00007f965c4c018d in poll () from /usr/lib/libc.so.6
#1  0x00007f965742efbc in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f965742f0cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f965d30d34f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f965d2b437a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f965d0d09c4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f9661419c85 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f965d0d596e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f965b1974a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f965c4c913d in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7f9633dc7700 (LWP 8888)):
#0  0x00007f965c4c018d in poll () from /usr/lib/libc.so.6
#1  0x00007f965742efbc in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f965742f0cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f965d30d34f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f965d2b437a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f965d0d09c4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f9661419c85 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f965d0d596e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f965b1974a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f965c4c913d in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f9632584700 (LWP 8889)):
#0  0x00007f965b19d07f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007f96642635e4 in ?? () from /usr/lib/libQt5Script.so.5
#2  0x00007f9664263629 in ?? () from /usr/lib/libQt5Script.so.5
#3  0x00007f965b1974a4 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007f965c4c913d in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f95ab921700 (LWP 8890)):
#0  0x00007f965c4c018d in poll () from /usr/lib/libc.so.6
#1  0x00007f965742efbc in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f965742f0cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f965d30d36b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f965d2b437a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f965d0d09c4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f9661fc0486 in ?? () from /usr/lib/libQt5Quick.so.5
#7  0x00007f965d0d596e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f965b1974a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f965c4c913d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f9664ad9840 (LWP 8884)):
[KCrash Handler]
#6  0x00007f965c4135f8 in raise () from /usr/lib/libc.so.6
#7  0x00007f965c414a7a in abort () from /usr/lib/libc.so.6
#8  0x00007f965d0c2fc1 in QMessageLogger::fatal(char const*, ...) const () from
/usr/lib/libQt5Core.so.5
#9  0x00007f965d0be12e in qt_assert(char const*, char const*, int) () from
/usr/lib/libQt5Core.so.5
#10 0x0000000000455495 in ShellCorona::isOutputRedundant
(this=this at entry=0xdf1e20, screen=...) at
/run/media/sdh/sdh-hdd3/sources/kde5/plasma-workspace/shell/shellcorona.cpp:800
#11 0x0000000000458d3f in ShellCorona::addOutput (this=this at entry=0xdf1e20,
output=...) at
/run/media/sdh/sdh-hdd3/sources/kde5/plasma-workspace/shell/shellcorona.cpp:877
#12 0x000000000045d985 in ShellCorona::load (this=this at entry=0xdf1e20) at
/run/media/sdh/sdh-hdd3/sources/kde5/plasma-workspace/shell/shellcorona.cpp:375
#13 0x000000000045de25 in
ShellCorona::<lambda(KScreen::ConfigOperation*)>::operator() (op=<optimized
out>, __closure=<synthetic pointer>) at
/run/media/sdh/sdh-hdd3/sources/kde5/plasma-workspace/shell/shellcorona.cpp:312
#14 QtPrivate::FunctorCall<QtPrivate::IndexesList<0>,
QtPrivate::List<KScreen::ConfigOperation*>, void, ShellCorona::setShell(const
QString&)::<lambda(KScreen::ConfigOperation*)> >::call (arg=<optimized out>,
f=...) at /usr/include/qt/QtCore/qobjectdefs_impl.h:495
#15 QtPrivate::Functor<ShellCorona::setShell(const
QString&)::<lambda(KScreen::ConfigOperation*)>,
1>::call<QtPrivate::List<KScreen::ConfigOperation*>, void> (arg=<optimized
out>, f=...) at /usr/include/qt/QtCore/qobjectdefs_impl.h:552
#16 QtPrivate::QFunctorSlotObject<ShellCorona::setShell(const
QString&)::<lambda(KScreen::ConfigOperation*)>, 1,
QtPrivate::List<KScreen::ConfigOperation*>, void>::impl(int,
QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized
out>, this_=<optimized out>, r=<optimized out>, a=<optimized out>,
ret=<optimized out>) at /usr/include/qt/QtCore/qobject_impl.h:192
#17 0x00007f965d2e4fb7 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/libQt5Core.so.5
#18 0x00007f96639d2920 in KScreen::ConfigOperation::finished
(this=this at entry=0x11ad580, _t1=_t1 at entry=0x11ad580) at
src/moc_configoperation.cpp:146
#19 0x00007f96639bcefc in KScreen::ConfigOperationPrivate::doEmitResult
(this=0x11a4fd0) at
/run/media/sdh/sdh-hdd3/sources/kde5/libkscreen/src/configoperation.cpp:56
#20 0x00007f96639d2a97 in KScreen::ConfigOperationPrivate::qt_static_metacall
(_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized
out>) at src/moc_configoperation_p.cpp:70
#21 0x00007f965d2e5ff1 in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#22 0x00007f965e8bf01c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#23 0x00007f965e8c44f6 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#24 0x00007f965d2b69ab in QCoreApplication::notifyInternal(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#25 0x00007f965d2b8da6 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#26 0x00007f965d30cf43 in ?? () from /usr/lib/libQt5Core.so.5
#27 0x00007f965742edc7 in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#28 0x00007f965742f020 in ?? () from /usr/lib/libglib-2.0.so.0
#29 0x00007f965742f0cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#30 0x00007f965d30d34f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#31 0x00007f965d2b437a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#32 0x00007f965d2bc33c in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#33 0x00000000004386d0 in main (argc=1, argv=<optimized out>) at
/run/media/sdh/sdh-hdd3/sources/kde5/plasma-workspace/shell/main.cpp:176

Reported using DrKonqi

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