Bug 361518

Summary:	playing with add widget plasma 5.6.1 crash
Product:	[Plasma] plasmashell	Reporter:	Bruno Friedmann <bruno>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED WORKSFORME
Severity:	crash	CC:	bshah, notmart, plasma-bugs-null
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	master
Target Milestone:	1.0
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Bruno Friedmann 2016-04-08 09:05:08 UTC

Application: plasmashell (5.6.90)

Qt Version: 5.6.1
Frameworks Version: 5.21.0
Operating System: Linux 4.6.0-rc2-2.g7f2acea-default x86_64
Distribution: "openSUSE Tumbleweed (20160117) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
Since I've lost again the widget on my desktop (Thermal and folder view) I was trying to add them again.
Once both of them were placed, I decide to click on remove bumblebee indicator, and then continue to scroll the list)
 suddently everything has gone away, and I was notified of plasma crash.

Nvidia is 364.12 (.run installed), kernel is 4.6.0-rc2, qt is 5.6.1
openSUSE Tumbleweed + kde repositories used qt56, kua, kuf

Double HiDPI screen used (dpi setup hard on nvidia device configuration to 168px)
Was happening just after opening a session.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff45c5d48c0 (LWP 2992))]

Thread 17 (Thread 0x7ff446954700 (LWP 3000)):
#0  0x00007ff455aba43d in poll () at /lib64/libc.so.6
#1  0x00007ff45a9f7432 in  () at /usr/lib64/libxcb.so.1
#2  0x00007ff45a9f9007 in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007ff4492d9e89 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7ff444928700 (LWP 3001)):
#0  0x00007ff4563c792e in  () at /usr/lib64/libQt5Core.so.5
#1  0x00007ff45216c99d in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff45216d2a3 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff45216d47c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007ff4563c83cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff456373e0a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007ff4561ac94c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007ff4571547b5 in  () at /usr/lib64/libQt5DBus.so.5
#8  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#10 0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7ff43efc3700 (LWP 3014)):
#0  0x00007ff455aba43d in poll () at /lib64/libc.so.6
#1  0x00007ff45216d374 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff45216d47c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff4563c83cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007ff456373e0a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4561ac94c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007ff4594c1d05 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7ff42c54e700 (LWP 3026)):
#0  0x00007ff4521b06f4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007ff45216d296 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff45216d47c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff4563c83cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007ff456373e0a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4561ac94c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007ff4594c1d05 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7ff42abec700 (LWP 3033)):
#0  0x00007ff45216c575 in g_main_context_release () at /usr/lib64/libglib-2.0.so.0
#1  0x00007ff45216d32e in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff45216d47c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff4563c83cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007ff456373e0a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4561ac94c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007ff4594c1d05 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7ff428e96700 (LWP 3034)):
#0  0x00007ff4552c702f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff45bcbf484 in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007ff45bcbf4c9 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#4  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7ff42195f700 (LWP 3039)):
#0  0x00007ff455aba43d in poll () at /lib64/libc.so.6
#1  0x00007ff45216d374 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff45216d47c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff4563c83cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007ff456373e0a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4561ac94c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007ff45a045ab2 in  () at /usr/lib64/libQt5Quick.so.5
#7  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7ff397fff700 (LWP 3040)):
#0  0x00007ff4552c702f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff4561b22db in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007ff45a0b3c6d in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007ff45a0b44e5 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7ff395b82700 (LWP 3750)):
#0  0x00007ff455aba43d in poll () at /lib64/libc.so.6
#1  0x00007ff45216d374 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007ff45216d47c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007ff4563c83cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007ff456373e0a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4561ac94c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007ff37b3f4a67 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7ff378cc5700 (LWP 3765)):
#0  0x00007ff4552c702f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff4561b22db in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007ff45a0b3c6d in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007ff45a0b44e5 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7ff37174d700 (LWP 3804)):
#0  0x00007ff4552c702f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff4561b22db in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007ff45a0b3c6d in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007ff45a0b44e5 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7ff365fdd700 (LWP 3820)):
#0  0x00007ff4552c702f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff4561b22db in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007ff45a0b3c6d in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007ff45a0b44e5 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7ff3657dc700 (LWP 3841)):
#0  0x00007ff4552c702f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff4561b22db in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007ff45a0b3c6d in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007ff45a0b44e5 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7ff364fdb700 (LWP 3860)):
#0  0x00007ff4552c702f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff4561b22db in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007ff45a0b3c6d in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007ff45a0b44e5 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7ff367bfe700 (LWP 3861)):
#0  0x00007ff4552c702f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff4561b22db in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007ff45a0b3c6d in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007ff45a0b44e5 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7ff35bbfe700 (LWP 3878)):
#0  0x00007ff4552c702f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff4561b22db in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007ff45a0b3c6d in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007ff45a0b44e5 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007ff4561b1549 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007ff4552c1454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff455ac2d8d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7ff45c5d48c0 (LWP 2992)):
[KCrash Handler]
#6  0x00007ff459d1ef8f in  () at /usr/lib64/libKF5Package.so.5
#7  0x00007ff459d25387 in  () at /usr/lib64/libKF5Package.so.5
#8  0x00007ff459d220ed in KPackage::Package::setPath(QString const&) () at /usr/lib64/libKF5Package.so.5
#9  0x00007ff459d2ce80 in  () at /usr/lib64/libKF5Package.so.5
#10 0x00007ff4563a1cc1 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#11 0x00007ff4575280dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#12 0x00007ff45752d2f6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#13 0x00007ff456375f58 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#14 0x00007ff456377d3a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#15 0x00007ff4563c7fa3 in  () at /usr/lib64/libQt5Core.so.5
#16 0x00007ff45216d1a7 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#17 0x00007ff45216d3d8 in  () at /usr/lib64/libglib-2.0.so.0
#18 0x00007ff45216d47c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#19 0x00007ff4563c83af in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#20 0x00007ff456373e0a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#21 0x00007ff45637c12d in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#22 0x000000000041ed7d in  ()
#23 0x00007ff4559f95b0 in __libc_start_main () at /lib64/libc.so.6
#24 0x000000000041efa9 in _start ()

Reported using DrKonqi

Comment 1 Marco Martin 2016-04-13 09:00:59 UTC

can you try to reproduce with KPackage debug symbols installed?

Comment 2 Bruno Friedmann 2016-04-13 12:50:13 UTC

As the git has quite changed since 8th April 
I'm using plasma 5.6.90git~20160411T195322~cc3edde-18.1 now 
and libQt5Core5 5.6.1-11.1 has been rebuild and update on 11 April.

I was unable to repoduce it this morning.