Bug 358211

Summary:	Plasma crash when re-activating screen
Product:	[Plasma] plasmashell	Reporter:	rainer <kdebugs>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED FIXED
Severity:	crash	CC:	bshah, martin.strecker, plasma-bugs-null, stephan.diestelhorst
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.5.5
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description rainer 2016-01-19 13:24:39 UTC

Application: plasmashell (5.5.2)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-1-default x86_64
Distribution: "openSUSE Tumbleweed (20160116) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I have a setup where I connect my monitor (HDMI) to two computers using a hardware switch. This computer was started with the monitor switched to it, I logged in with kdm and worked a little. Switching to the other computer (windows based), working there. Switching back here, already twice today I was greeted with the Crash dialog. It doesn't happen always, but frequently.
Currently it seems to restart and work again all by itself.

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 0x7fdd90f848c0 (LWP 2179))]

Thread 8 (Thread 0x7fdd7a4ee700 (LWP 2180)):
#0  0x00007fdd8a51224d in poll () at /lib64/libc.so.6
#1  0x00007fdd8f3e4432 in  () at /usr/lib64/libxcb.so.1
#2  0x00007fdd8f3e6007 in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007fdd7c63de29 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007fdd8ac0394f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007fdd89d194a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fdd8a51abdd in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fdd735ef700 (LWP 2197)):
#0  0x00007fdd8a50e22d in read () at /lib64/libc.so.6
#1  0x00007fdd86c49210 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdd86c06d94 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdd86c07208 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fdd86c0736c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fdd8ae2852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fdd8add263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fdd8abfeb1c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007fdd8decb9a5 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fdd8ac0394f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fdd89d194a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fdd8a51abdd in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fdd60309700 (LWP 2220)):
#0  0x00007fdd86c4a4d4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fdd86c06b49 in g_main_context_query () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdd86c071df in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdd86c0736c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fdd8ae2852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fdd8add263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fdd8abfeb1c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fdd8decb9a5 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fdd8ac0394f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fdd89d194a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fdd8a51abdd in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fdd5ea68700 (LWP 2222)):
#0  0x00007fdd8ae27920 in  () at /usr/lib64/libQt5Core.so.5
#1  0x00007fdd86c0688d in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdd86c07193 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdd86c0736c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fdd8ae2852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fdd8add263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fdd8abfeb1c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fdd8decb9a5 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fdd8ac0394f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fdd89d194a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fdd8a51abdd in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fdd5d0e5700 (LWP 2232)):
#0  0x00007fdd89d1f07f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fdd90672a84 in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007fdd90672ac9 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007fdd89d194a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fdd8a51abdd in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fdd555c4700 (LWP 2276)):
#0  0x00007fdd8a51224d in poll () at /lib64/libc.so.6
#1  0x00007fdd86c07264 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdd86c0736c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdd8ae2852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fdd8add263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fdd8abfeb1c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fdd8ea50e42 in  () at /usr/lib64/libQt5Quick.so.5
#7  0x00007fdd8ac0394f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fdd89d194a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fdd8a51abdd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fdcc4e47700 (LWP 2598)):
#0  0x00007fdd86c4a4d4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fdd86c06880 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdd86c07193 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdd86c0736c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fdd8ae2852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fdd8add263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fdd8abfeb1c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fdcc735ce47 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#8  0x00007fdd8ac0394f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fdd89d194a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fdd8a51abdd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fdd90f848c0 (LWP 2179)):
[KCrash Handler]
#6  0x00007fdd7c64e82b in QXcbScreen::windowShown(QXcbWindow*) () at /usr/lib64/libQt5XcbQpa.so.5
#7  0x00007fdd7c656c7c in QXcbWindow::show() () at /usr/lib64/libQt5XcbQpa.so.5
#8  0x00007fdd8b31f6b8 in QWindow::setVisible(bool) () at /usr/lib64/libQt5Gui.so.5
#9  0x00007fdd8ae0de38 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fdd8ae02d2b in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#11 0x00007fdd8c14b8cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#12 0x00007fdd8c1509d6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#13 0x00007fdd8add4cf3 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#14 0x00007fdd8ae273bd in QTimerInfoList::activateTimers() () at /usr/lib64/libQt5Core.so.5
#15 0x00007fdd8ae27909 in  () at /usr/lib64/libQt5Core.so.5
#16 0x00007fdd86c07097 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#17 0x00007fdd86c072c8 in  () at /usr/lib64/libglib-2.0.so.0
#18 0x00007fdd86c0736c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#19 0x00007fdd8ae2850f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#20 0x00007fdd8add263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#21 0x00007fdd8adda2fd in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#22 0x0000000000436571 in main ()

Reported using DrKonqi

Comment 1 Martin Klapetek 2016-01-27 02:26:42 UTC

Thanks for the report

What's your Qt version?

Comment 2 Martin Klapetek 2016-01-27 02:27:54 UTC

Oh sorry, overlooked it at the top of your comment.

Comment 3 rainer 2016-01-28 12:07:56 UTC

I seem to get this crash on the first two switches. Unfortunately does the crash reporting tool not allow adding my other reports here (I can select this as a duplicate, but then nothing happens).
Please notify me if I should add more stack-traces or you need more information about my environment.

Comment 4 David Edmundson 2016-02-05 19:14:23 UTC

*** Bug 359009 has been marked as a duplicate of this bug. ***

Comment 5 Martin Klapetek 2016-03-10 14:15:30 UTC

*** Bug 360327 has been marked as a duplicate of this bug. ***

Comment 6 rainer 2016-08-18 11:05:17 UTC

The latest updates to Tumbleweed fixed this problem for me. The plasma5-desktop package now carries the version 5.7.3-1.1.

Comment 7 Bhushan Shah 2016-10-10 05:05:51 UTC

Given the comment #6 , marking this as FIXED