Bug 366041

Summary: Plasmashell crashes after switch
Product: [Plasma] plasmashell Reporter: WAWalkenhorst <wawalkenhorst>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, notmart, plasma-bugs, tom
Priority: NOR Keywords: drkonqi
Version: 5.7.2   
Target Milestone: 1.0   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description WAWalkenhorst 2016-07-24 15:39:36 UTC 
Application: plasmashell (5.7.2)

Qt Version: 5.7.0
Frameworks Version: 5.24.0
Operating System: Linux 4.1.27-27-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I opend a second session, did a few things and switched back to the first session, got an error message and several seconds later another message asking to end plasmahell. Then I started plasmashell agein, everything (switching back and forth) worked fine since then.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3ad59f67c0 (LWP 3587))]

Thread 24 (Thread 0x7f3abe550700 (LWP 3589)):
#0  0x00007f3acf196bfd in poll () at /lib64/libc.so.6
#1  0x00007f3ad4059422 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f3ad405b00f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f3ac0ed83e9 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x1ba6cd0) at thread/qthread_unix.cpp:344
#5  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f3ab7fff700 (LWP 3591)):
#0  0x00007f3aca2d5cf9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f3aca293387 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f3aca293d80 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f3aca293f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f3acfa9bf7b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3ab00008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f3acfa4b8cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3ab7ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#6  0x00007f3acf89206a in QThread::exec() (this=this@entry=0x7f3ad0822d00 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:507
#7  0x00007f3ad05b94b5 in QDBusConnectionManager::run() (this=0x7f3ad0822d00 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:196
#8  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x7f3ad0822d00 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:344
#9  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f3ab6be9700 (LWP 3594)):
#0  0x00007f3acf192ccd in read () at /lib64/libc.so.6
#1  0x00007f3ac73b3073 in  () at /usr/lib64/tls/libnvidia-tls.so.367.27
#2  0x00007f3aca2d4b60 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f3aca293999 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f3aca293df8 in  () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f3aca293f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#6  0x00007f3acfa9bf7b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3aa80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f3acfa4b8cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3ab6be8df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#8  0x00007f3acf89206a in QThread::exec() (this=this@entry=0x1c4d4b0) at thread/qthread.cpp:507
#9  0x00007f3ad2b1b918 in QQmlThreadPrivate::run() (this=0x1c4d4b0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/qml/qml/ftw/qqmlthread.cpp:147
#10 0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x1c4d4b0) at thread/qthread_unix.cpp:344
#11 0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f3ab5237700 (LWP 3598)):
#0  0x00007f3aca2d5d14 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f3aca293a5a in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f3aca293ed8 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f3aca293f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f3acfa9bf7b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3aac0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f3acfa4b8cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3ab5236df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#6  0x00007f3acf89206a in QThread::exec() (this=this@entry=0x1cdd070) at thread/qthread.cpp:507
#7  0x00007f3ad2b1b918 in QQmlThreadPrivate::run() (this=0x1cdd070) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/qml/qml/ftw/qqmlthread.cpp:147
#8  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x1cdd070) at thread/qthread_unix.cpp:344
#9  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f3aa739c700 (LWP 3621)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3ad50d29cb in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f3ad50d29f9 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f3a18e3f700 (LWP 3634)):
#0  0x00007f3aca2d5cf9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f3aca293e4a in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f3aca293f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f3acfa9bf7b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3a140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f3acfa4b8cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3a18e3edb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#5  0x00007f3acf89206a in QThread::exec() (this=this@entry=0x23d51c0) at thread/qthread.cpp:507
#6  0x00007f3ad369d152 in QQuickPixmapReader::run() (this=0x23d51c0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/util/qquickpixmapcache.cpp:823
#7  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x23d51c0) at thread/qthread_unix.cpp:344
#8  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f3a13233700 (LWP 3640)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1ecc1b0) at thread/qwaitcondition_unix.cpp:143
#2  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x23fb778, mutex=mutex@entry=0x23fb770, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x23fb768) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:242
#4  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x23fb6f0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f3ad370b115 in QSGRenderThread::run() (this=0x23fb6f0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x23fb6f0) at thread/qthread_unix.cpp:344
#7  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f3a0b734700 (LWP 3675)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x2010c50) at thread/qwaitcondition_unix.cpp:143
#2  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x26a6928, mutex=mutex@entry=0x26a6920, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x26a6918) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:242
#4  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x26a68a0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f3ad370b115 in QSGRenderThread::run() (this=0x26a68a0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x26a68a0) at thread/qthread_unix.cpp:344
#7  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f39ffac3700 (LWP 3691)):
#0  0x00007f3aca2d5cf9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f3aca292ee0 in g_main_context_acquire () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f3aca293d25 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f3aca293f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f3acfa9bf7b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f39f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f3acfa4b8cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f39ffac2dd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#6  0x00007f3acf89206a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#7  0x00007f3a01110cf7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#8  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x3314a00) at thread/qthread_unix.cpp:344
#9  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f39fe075700 (LWP 3697)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x3598540) at thread/qwaitcondition_unix.cpp:143
#2  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x359a678, mutex=mutex@entry=0x359a670, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x359a668) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:242
#4  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x359a5f0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f3ad370b115 in QSGRenderThread::run() (this=0x359a5f0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x359a5f0) at thread/qthread_unix.cpp:344
#7  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f39fc931700 (LWP 3698)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x379c9e0) at thread/qwaitcondition_unix.cpp:143
#2  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x379b6e8, mutex=mutex@entry=0x379b6e0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x379b6d8) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:242
#4  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x379b660) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f3ad370b115 in QSGRenderThread::run() (this=0x379b660) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x379b660) at thread/qthread_unix.cpp:344
#7  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f39cdff9700 (LWP 4301)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x3150d40) at thread/qwaitcondition_unix.cpp:143
#2  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x3a60368, mutex=mutex@entry=0x3a60360, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x3a60358) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:242
#4  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x3a602e0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f3ad370b115 in QSGRenderThread::run() (this=0x3a602e0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x3a602e0) at thread/qthread_unix.cpp:344
#7  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f39eabdf700 (LWP 4302)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x3f68e70) at thread/qwaitcondition_unix.cpp:143
#2  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x3f69a28, mutex=mutex@entry=0x3f69a20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x3f69a18) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:242
#4  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x3f699a0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f3ad370b115 in QSGRenderThread::run() (this=0x3f699a0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x3f699a0) at thread/qthread_unix.cpp:344
#7  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f39dd63a700 (LWP 4303)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x401d2c0) at thread/qwaitcondition_unix.cpp:143
#2  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x428db88, mutex=mutex@entry=0x428db80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x428db78) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:242
#4  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x428db00) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f3ad370b115 in QSGRenderThread::run() (this=0x428db00) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x428db00) at thread/qthread_unix.cpp:344
#7  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f39ce7fa700 (LWP 5171)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x453a760) at thread/qwaitcondition_unix.cpp:143
#2  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x476a168, mutex=mutex@entry=0x476a160, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (wait=true, this=0x476a158) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:242
#4  0x00007f3ad370927b in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x476a0e0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f3ad370b115 in QSGRenderThread::run() (this=0x476a0e0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x476a0e0) at thread/qthread_unix.cpp:344
#7  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f39dce39700 (LWP 6954)):
#0  0x00007f3ac4556e29 in pa_iochannel_is_readable () at /usr/lib64/pulseaudio/libpulsecommon-7.0.so
#1  0x00007f3ac4569ad7 in  () at /usr/lib64/pulseaudio/libpulsecommon-7.0.so
#2  0x00007f3ac4569e1d in  () at /usr/lib64/pulseaudio/libpulsecommon-7.0.so
#3  0x00007f3ac456a6ba in  () at /usr/lib64/pulseaudio/libpulsecommon-7.0.so
#4  0x00007f3ac4ddb1b4 in pa_mainloop_dispatch () at /usr/lib64/libpulse.so.0
#5  0x00007f3ac4ddb58a in pa_mainloop_iterate () at /usr/lib64/libpulse.so.0
#6  0x00007f3ac4ddb630 in pa_mainloop_run () at /usr/lib64/libpulse.so.0
#7  0x00007f3ac4de9783 in  () at /usr/lib64/libpulse.so.0
#8  0x00007f3ac4579f98 in  () at /usr/lib64/pulseaudio/libpulsecommon-7.0.so
#9  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f39de497700 (LWP 6955)):
#0  0x00007f3acf19afb9 in syscall () at /lib64/libc.so.6
#1  0x00007f3aca2d5e2f in g_cond_wait () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f39e9f025db in  () at /usr/lib64/libgstreamer-1.0.so.0
#3  0x00007f3aca2b98ec in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f3aca2b8f65 in  () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f39cf8fd700 (LWP 6956)):
#0  0x00007f3acf19afb9 in syscall () at /lib64/libc.so.6
#1  0x00007f3aca2d5e2f in g_cond_wait () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f39e9f025db in  () at /usr/lib64/libgstreamer-1.0.so.0
#3  0x00007f3aca2b98ec in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f3aca2b8f65 in  () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f39cf0fc700 (LWP 6957)):
#0  0x00007f3acf19afb9 in syscall () at /lib64/libc.so.6
#1  0x00007f3aca2d5e2f in g_cond_wait () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f39e8ed04b2 in  () at /usr/lib64/libgstbase-1.0.so.0
#3  0x00007f39e8ed18e6 in gst_data_queue_pop () at /usr/lib64/libgstbase-1.0.so.0
#4  0x00007f39deb32eb4 in  () at /usr/lib64/gstreamer-1.0/libgstcoreelements.so
#5  0x00007f39e9f023f9 in  () at /usr/lib64/libgstreamer-1.0.so.0
#6  0x00007f3aca2b98ec in  () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f3aca2b8f65 in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f39cd7f8700 (LWP 6958)):
#0  0x00007f3ace9a4027 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3ac4de9df0 in pa_threaded_mainloop_wait () at /usr/lib64/libpulse.so.0
#2  0x00007f39e8561523 in  () at /usr/lib64/gstreamer-1.0/libgstpulse.so
#3  0x00007f39e89e09a2 in  () at /usr/lib64/libgstaudio-1.0.so.0
#4  0x00007f39e8eb6705 in  () at /usr/lib64/libgstbase-1.0.so.0
#5  0x00007f39e8eb7c34 in  () at /usr/lib64/libgstbase-1.0.so.0
#6  0x00007f39e9ed02a5 in  () at /usr/lib64/libgstreamer-1.0.so.0
#7  0x00007f39e9ed800e in gst_pad_push () at /usr/lib64/libgstreamer-1.0.so.0
#8  0x00007f39e8ec12d8 in  () at /usr/lib64/libgstbase-1.0.so.0
#9  0x00007f39e9ed02a5 in  () at /usr/lib64/libgstreamer-1.0.so.0
#10 0x00007f39e9ed800e in gst_pad_push () at /usr/lib64/libgstreamer-1.0.so.0
#11 0x00007f39e8ec12d8 in  () at /usr/lib64/libgstbase-1.0.so.0
#12 0x00007f39e9ed02a5 in  () at /usr/lib64/libgstreamer-1.0.so.0
#13 0x00007f39e9ed800e in gst_pad_push () at /usr/lib64/libgstreamer-1.0.so.0
#14 0x00007f39e8ec12d8 in  () at /usr/lib64/libgstbase-1.0.so.0
#15 0x00007f39e9ed02a5 in  () at /usr/lib64/libgstreamer-1.0.so.0
#16 0x00007f39e9ed800e in gst_pad_push () at /usr/lib64/libgstreamer-1.0.so.0
#17 0x00007f39deb372bf in  () at /usr/lib64/gstreamer-1.0/libgstcoreelements.so
#18 0x00007f39e9f023f9 in  () at /usr/lib64/libgstreamer-1.0.so.0
#19 0x00007f3aca2b98ec in  () at /usr/lib64/libglib-2.0.so.0
#20 0x00007f3aca2b8f65 in  () at /usr/lib64/libglib-2.0.so.0
#21 0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#22 0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f39ccff7700 (LWP 6959)):
#0  0x00007f3acf19afb9 in syscall () at /lib64/libc.so.6
#1  0x00007f3aca2d5e2f in g_cond_wait () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f39deb37a65 in  () at /usr/lib64/gstreamer-1.0/libgstcoreelements.so
#3  0x00007f39e9ed02a5 in  () at /usr/lib64/libgstreamer-1.0.so.0
#4  0x00007f39e9ed800e in gst_pad_push () at /usr/lib64/libgstreamer-1.0.so.0
#5  0x00007f39e9ec133b in gst_proxy_pad_chain_default () at /usr/lib64/libgstreamer-1.0.so.0
#6  0x00007f39e9ed02a5 in  () at /usr/lib64/libgstreamer-1.0.so.0
#7  0x00007f39e9ed800e in gst_pad_push () at /usr/lib64/libgstreamer-1.0.so.0
#8  0x00007f39deb459b9 in  () at /usr/lib64/gstreamer-1.0/libgstcoreelements.so
#9  0x00007f39deb45fd3 in  () at /usr/lib64/gstreamer-1.0/libgstcoreelements.so
#10 0x00007f39e9ed02a5 in  () at /usr/lib64/libgstreamer-1.0.so.0
#11 0x00007f39e9ed800e in gst_pad_push () at /usr/lib64/libgstreamer-1.0.so.0
#12 0x00007f39deb372bf in  () at /usr/lib64/gstreamer-1.0/libgstcoreelements.so
#13 0x00007f39e9f023f9 in  () at /usr/lib64/libgstreamer-1.0.so.0
#14 0x00007f3aca2b98ec in  () at /usr/lib64/libglib-2.0.so.0
#15 0x00007f3aca2b8f65 in  () at /usr/lib64/libglib-2.0.so.0
#16 0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#17 0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f39c3ffe700 (LWP 6960)):
#0  0x00007f3acf19afb9 in syscall () at /lib64/libc.so.6
#1  0x00007f3aca2d5e2f in g_cond_wait () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f39e9f025db in  () at /usr/lib64/libgstreamer-1.0.so.0
#3  0x00007f3aca2b98ec in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f3aca2b8f65 in  () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f39c2ffc700 (LWP 6963)):
[KCrash Handler]
#6  0x00007f3acf15338d in __strstr_sse2_unaligned () at /lib64/libc.so.6
#7  0x00007f3ad36f142a in QSGRenderContext::initialize(QOpenGLContext*) (__needle=0x7f3ad3895332 "nouveau", __haystack=0x0) at /usr/include/string.h:333
#8  0x00007f3ad36f142a in QSGRenderContext::initialize(QOpenGLContext*) (this=0x305ef80, context=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgcontext.cpp:634
#9  0x00007f3ad370b331 in QSGRenderThread::run() (this=0x303bb20) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:709
#10 0x00007f3acf896899 in QThreadPrivate::start(void*) (arg=0x303bb20) at thread/qthread_unix.cpp:344
#11 0x00007f3ace9a00a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f3acf19f02d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f3ad59f67c0 (LWP 3587)):
#0  0x00007f3ace9a403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x4cc0be0) at thread/qwaitcondition_unix.cpp:143
#2  0x00007f3acf89750b in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x303bb60, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f3ad370b87a in QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window*, bool) (this=this@entry=0x1eccb70, w=<optimized out>, w@entry=0x4cc0c50, inExpose=inExpose@entry=true) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:1183
#4  0x00007f3ad370c484 in QSGThreadedRenderLoop::handleExposure(QQuickWindow*) (this=this@entry=0x1eccb70, window=window@entry=0x305eaf0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:979
#5  0x00007f3ad370d023 in QSGThreadedRenderLoop::exposureChanged(QQuickWindow*) (this=0x1eccb70, window=0x305eaf0) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/scenegraph/qsgthreadedrenderloop.cpp:890
#6  0x00007f3acffaa98e in QWindow::event(QEvent*) () at /usr/lib64/libQt5Gui.so.5
#7  0x00007f3ad3740ec5 in QQuickWindow::event(QEvent*) (this=0x305eaf0, e=0x7ffcba2f7850) at /usr/src/debug/qtdeclarative-opensource-src-5.7.0/src/quick/items/qquickwindow.cpp:1518
#8  0x00007f3ad5401f8b in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib64/libKF5PlasmaQuick.so.5
#9  0x00007f3ad0986afc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x305eaf0, e=0x7ffcba2f7850) at kernel/qapplication.cpp:3799
#10 0x00007f3ad098da80 in QApplication::notify(QObject*, QEvent*) (this=0x7ffcba2f7c90, receiver=0x305eaf0, e=0x7ffcba2f7850) at kernel/qapplication.cpp:3556
#11 0x00007f3acfa4d5f5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x305eaf0, event=0x7ffcba2f7850) at kernel/qcoreapplication.cpp:988
#12 0x00007f3acffa0771 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib64/libQt5Gui.so.5
#13 0x00007f3acffa129d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib64/libQt5Gui.so.5
#14 0x00007f3acff832db in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Gui.so.5
#15 0x00007f3ac0f05e90 in  () at /usr/lib64/libQt5XcbQpa.so.5
#16 0x00007f3aca293c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#17 0x00007f3aca293ed8 in  () at /usr/lib64/libglib-2.0.so.0
#18 0x00007f3aca293f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#19 0x00007f3acfa9bf5c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1bf5f20, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#20 0x00007f3acfa4b8cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffcba2f7b10, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#21 0x00007f3acfa536c6 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1261
#22 0x000000000041c507 in main(int, char**) (argc=2, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.7.2/shell/main.cpp:166

Possible duplicates by query: bug 364203, bug 363386, bug 358964, bug 358883, bug 356907.

Reported using DrKonqi
Comment 1 Marco Martin 2016-07-26 15:13:53 UTC 

*** This bug has been marked as a duplicate of bug 348812 ***
Comment 2 Marco Martin 2016-09-02 08:55:48 UTC 
*** Bug 368035 has been marked as a duplicate of this bug. ***