https://bugs.kde.org/show_bug.cgi?id=359781
--- Comment #4 from Sudhir Khanger <sud...@sudhirkhanger.com> --- Marco Martin is this what you were looking for? Application: plasmashell (5.5.4) Qt Version: 5.5.1 Operating System: Linux 4.4.2-301.fc23.x86_64 x86_64 Distribution: "Fedora release 23 (Twenty Three)" -- Information about the crash: <In detail, tell us what you were doing when the application crashed.> The crash can be reproduced every time. -- Backtrace: Application: Plasma (plasmashell), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". 84 T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS) [Current thread is 1 (Thread 0x7f38e6165940 (LWP 2715))] Thread 9 (Thread 0x7f38c621e700 (LWP 2719)): #0 0x00007f38ddb41fdd in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f38e3ffb272 in poll (__timeout=-1, __nfds=1, __fds=0x7f38c621db80) at /usr/include/bits/poll2.h:46 #2 _xcb_conn_wait (c=c@entry=0x5641cded7ed0, cond=cond@entry=0x5641cded7f10, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459 #3 0x00007f38e3ffcee7 in xcb_wait_for_event (c=0x5641cded7ed0) at xcb_in.c:693 #4 0x00007f38c81a8da9 in QXcbEventReader::run (this=0x5641cdee1d40) at qxcbconnection.cpp:1255 #5 0x00007f38de74a3de in QThreadPrivate::start (arg=0x5641cdee1d40) at thread/qthread_unix.cpp:331 #6 0x00007f38dce8560a in start_thread (arg=0x7f38c621e700) at pthread_create.c:334 #7 0x00007f38ddb4da4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 8 (Thread 0x7f38bf5ef700 (LWP 2740)): #0 0x00007f38ddb41fdd in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f38d906716c in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f38b8003070, timeout=<optimized out>, context=0x7f38b8000990) at gmain.c:4135 #2 g_main_context_iterate (context=context@entry=0x7f38b8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835 #3 0x00007f38d906727c in g_main_context_iteration (context=0x7f38b8000990, may_block=may_block@entry=1) at gmain.c:3901 #4 0x00007f38de981ecb in QEventDispatcherGlib::processEvents (this=0x7f38b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420 #5 0x00007f38de928eca in QEventLoop::exec (this=this@entry=0x7f38bf5eec60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #6 0x00007f38de745434 in QThread::exec (this=this@entry=0x5641cdfc2910) at thread/qthread.cpp:503 #7 0x00007f38e2a929b5 in QQmlThreadPrivate::run (this=0x5641cdfc2910) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/ftw/qqmlthread.cpp:141 #8 0x00007f38de74a3de in QThreadPrivate::start (arg=0x5641cdfc2910) at thread/qthread_unix.cpp:331 #9 0x00007f38dce8560a in start_thread (arg=0x7f38bf5ef700) at pthread_create.c:334 #10 0x00007f38ddb4da4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 7 (Thread 0x7f38b6773700 (LWP 2741)): #0 0x00007f38ddb41fdd in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f38d906716c in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f38b0002e70, timeout=<optimized out>, context=0x7f38b0000990) at gmain.c:4135 #2 g_main_context_iterate (context=context@entry=0x7f38b0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835 #3 0x00007f38d906727c in g_main_context_iteration (context=0x7f38b0000990, may_block=may_block@entry=1) at gmain.c:3901 #4 0x00007f38de981ecb in QEventDispatcherGlib::processEvents (this=0x7f38b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420 #5 0x00007f38de928eca in QEventLoop::exec (this=this@entry=0x7f38b6772c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #6 0x00007f38de745434 in QThread::exec (this=this@entry=0x5641ce2acbb0) at thread/qthread.cpp:503 #7 0x00007f38e2a929b5 in QQmlThreadPrivate::run (this=0x5641ce2acbb0) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/ftw/qqmlthread.cpp:141 #8 0x00007f38de74a3de in QThreadPrivate::start (arg=0x5641ce2acbb0) at thread/qthread_unix.cpp:331 #9 0x00007f38dce8560a in start_thread (arg=0x7f38b6773700) at pthread_create.c:334 #10 0x00007f38ddb4da4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 6 (Thread 0x7f38b4d55700 (LWP 2742)): #0 0x00007f38ddb41fdd in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f38d906716c in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f38a8003070, timeout=<optimized out>, context=0x7f38a8000990) at gmain.c:4135 #2 g_main_context_iterate (context=context@entry=0x7f38a8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835 #3 0x00007f38d906727c in g_main_context_iteration (context=0x7f38a8000990, may_block=may_block@entry=1) at gmain.c:3901 #4 0x00007f38de981ecb in QEventDispatcherGlib::processEvents (this=0x7f38a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420 #5 0x00007f38de928eca in QEventLoop::exec (this=this@entry=0x7f38b4d54c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #6 0x00007f38de745434 in QThread::exec (this=this@entry=0x5641ce3a2010) at thread/qthread.cpp:503 #7 0x00007f38e2a929b5 in QQmlThreadPrivate::run (this=0x5641ce3a2010) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/ftw/qqmlthread.cpp:141 #8 0x00007f38de74a3de in QThreadPrivate::start (arg=0x5641ce3a2010) at thread/qthread_unix.cpp:331 #9 0x00007f38dce8560a in start_thread (arg=0x7f38b4d55700) at pthread_create.c:334 #10 0x00007f38ddb4da4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7f38af3d6700 (LWP 2743)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007f38e58eb514 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f38e5bd4380 <QTWTF::pageheap_memory>) at /usr/src/debug/qtscript-opensource-src-5.5.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359 #2 0x00007f38e58eb559 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at /usr/src/debug/qtscript-opensource-src-5.5.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464 #3 0x00007f38dce8560a in start_thread (arg=0x7f38af3d6700) at pthread_create.c:334 #4 0x00007f38ddb4da4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7f3827fff700 (LWP 2748)): #0 0x00007f38de74252a in QBasicAtomicOps<8>::testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x5641ce5b8f38: 0x1) at ../../src/corelib/arch/qatomic_x86.h:259 #1 QGenericAtomicOps<QBasicAtomicOps<8> >::testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=<optimized out>, expectedValue=0x0, _q_value=@0x5641ce5b8f38: 0x1) at ../../src/corelib/thread/qgenericatomic.h:166 #2 QBasicAtomicPointer<QMutexData>::testAndSetAcquire (currentValue=<synthetic pointer>, newValue=<optimized out>, expectedValue=0x0, this=0x5641ce5b8f38, this@entry=0x1) at ../../src/corelib/thread/qbasicatomic.h:278 #3 QBasicMutex::fastTryLock (current=<synthetic pointer>, this=0x5641ce5b8f38, this@entry=0x1) at thread/qmutex.h:82 #4 QMutex::lock (this=this@entry=0x5641ce5b8f38) at thread/qmutex.cpp:212 #5 0x00007f38de98144f in QMutexLocker::QMutexLocker (m=0x5641ce5b8f38, this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:128 #6 QThreadData::canWaitLocked (this=0x5641ce5b8f10) at ../../src/corelib/thread/qthread_p.h:240 #7 postEventSourcePrepare (s=0x7f38200012d0, timeout=timeout@entry=0x7f3827ffea54) at kernel/qeventdispatcher_glib.cpp:254 #8 0x00007f38d906670d in g_main_context_prepare (context=context@entry=0x7f3820000990, priority=priority@entry=0x7f3827ffeae0) at gmain.c:3442 #9 0x00007f38d906709b in g_main_context_iterate (context=context@entry=0x7f3820000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3820 #10 0x00007f38d906727c in g_main_context_iteration (context=0x7f3820000990, may_block=may_block@entry=1) at gmain.c:3901 #11 0x00007f38de981ecb in QEventDispatcherGlib::processEvents (this=0x7f38200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420 #12 0x00007f38de928eca in QEventLoop::exec (this=this@entry=0x7f3827ffec10, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #13 0x00007f38de745434 in QThread::exec (this=this@entry=0x5641ce5b7c00) at thread/qthread.cpp:503 #14 0x00007f38e36408d6 in QQuickPixmapReader::run (this=0x5641ce5b7c00) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/quick/util/qquickpixmapcache.cpp:760 #15 0x00007f38de74a3de in QThreadPrivate::start (arg=0x5641ce5b7c00) at thread/qthread_unix.cpp:331 #16 0x00007f38dce8560a in start_thread (arg=0x7f3827fff700) at pthread_create.c:334 #17 0x00007f38ddb4da4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7f3816110700 (LWP 2787)): #0 0x00007f38ddb41fdd in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f38d906716c in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f38100048c0, timeout=<optimized out>, context=0x7f3810000990) at gmain.c:4135 #2 g_main_context_iterate (context=context@entry=0x7f3810000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835 #3 0x00007f38d906727c in g_main_context_iteration (context=0x7f3810000990, may_block=may_block@entry=1) at gmain.c:3901 #4 0x00007f38de981ecb in QEventDispatcherGlib::processEvents (this=0x7f38100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420 #5 0x00007f38de928eca in QEventLoop::exec (this=this@entry=0x7f381610fc40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #6 0x00007f38de745434 in QThread::exec (this=this@entry=0x5641d0b13d60) at thread/qthread.cpp:503 #7 0x00007f3817d49547 in KCupsConnection::run (this=0x5641d0b13d60) at /usr/src/debug/print-manager-15.12.1/libkcups/KCupsConnection.cpp:304 #8 0x00007f38de74a3de in QThreadPrivate::start (arg=0x5641d0b13d60) at thread/qthread_unix.cpp:331 #9 0x00007f38dce8560a in start_thread (arg=0x7f3816110700) at pthread_create.c:334 #10 0x00007f38ddb4da4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7f380a527700 (LWP 8539)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x00007f38de74b5a6 in QWaitConditionPrivate::wait_relative (time=30000, this=0x5641d119fc40) at thread/qwaitcondition_unix.cpp:126 #2 QWaitConditionPrivate::wait (time=30000, this=0x5641d119fc40) at thread/qwaitcondition_unix.cpp:134 #3 QWaitCondition::wait (this=this@entry=0x5641d0fa0120, mutex=mutex@entry=0x5641d0b29600, time=30000) at thread/qwaitcondition_unix.cpp:208 #4 0x00007f38de747063 in QThreadPoolThread::run (this=0x5641d0fa0110) at thread/qthreadpool.cpp:127 #5 0x00007f38de74a3de in QThreadPrivate::start (arg=0x5641d0fa0110) at thread/qthread_unix.cpp:331 #6 0x00007f38dce8560a in start_thread (arg=0x7f380a527700) at pthread_create.c:334 #7 0x00007f38ddb4da4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7f38e6165940 (LWP 2715)): [KCrash Handler] #6 QBasicAtomicPointer<QtSharedPointer::ExternalRefCountData>::load (this=0xd1620068) at ../../src/corelib/thread/qbasicatomic.h:254 #7 QtSharedPointer::ExternalRefCountData::getAndRef (obj=obj@entry=0x5641d0fb2d50) at tools/qsharedpointer.cpp:1330 #8 0x00007f38dff3cce5 in QWeakPointer<QObject>::QWeakPointer<QObject> (ptr=0x5641d0fb2d50, this=<optimized out>) at ../../src/corelib/tools/qsharedpointer_impl.h:696 #9 QWeakPointer<QObject>::assign<QObject> (ptr=0x5641d0fb2d50, this=0x7f38e060f340 <qt_last_mouse_receiver>) at ../../src/corelib/tools/qsharedpointer_impl.h:692 #10 QPointer<QWidget>::operator= (p=0x5641d0fb2d50, this=0x7f38e060f340 <qt_last_mouse_receiver>) at ../../src/corelib/kernel/qpointer.h:67 #11 QWidgetWindow::handleMouseEvent (this=this@entry=0x5641d316b520, event=event@entry=0x7ffdebbde900) at kernel/qwidgetwindow.cpp:453 #12 0x00007f38dff3ef3b in QWidgetWindow::event (this=0x5641d316b520, event=0x7ffdebbde900) at kernel/qwidgetwindow.cpp:210 #13 0x00007f38dfedf41c in QApplicationPrivate::notify_helper (this=0x5641cdecb460, receiver=0x5641d316b520, e=0x7ffdebbde900) at kernel/qapplication.cpp:3716 #14 0x00007f38dfee48e6 in QApplication::notify (this=0x7ffdebbdede0, receiver=0x5641d316b520, e=0x7ffdebbde900) at kernel/qapplication.cpp:3499 #15 0x00007f38de92b73b in QCoreApplication::notifyInternal (this=0x7ffdebbdede0, receiver=receiver@entry=0x5641d316b520, event=event@entry=0x7ffdebbde900) at kernel/qcoreapplication.cpp:965 #16 0x00007f38dee67eb1 in QCoreApplication::sendSpontaneousEvent (event=0x7ffdebbde900, receiver=0x5641d316b520) at ../../src/corelib/kernel/qcoreapplication.h:227 #17 QGuiApplicationPrivate::processMouseEvent (e=0x5641d14890d0) at kernel/qguiapplication.cpp:1789 #18 0x00007f38dee69b75 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x5641d14890d0) at kernel/qguiapplication.cpp:1581 #19 0x00007f38dee4d918 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:625 #20 0x00007f38c81da0b0 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70 #21 0x00007f38d9066e3a in g_main_dispatch (context=0x7f38c00016f0) at gmain.c:3154 #22 g_main_context_dispatch (context=context@entry=0x7f38c00016f0) at gmain.c:3769 #23 0x00007f38d90671d0 in g_main_context_iterate (context=context@entry=0x7f38c00016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3840 #24 0x00007f38d906727c in g_main_context_iteration (context=0x7f38c00016f0, may_block=may_block@entry=1) at gmain.c:3901 #25 0x00007f38de981eaf in QEventDispatcherGlib::processEvents (this=0x5641cdec0d90, flags=...) at kernel/qeventdispatcher_glib.cpp:418 #26 0x00007f38de928eca in QEventLoop::exec (this=this@entry=0x7ffdebbdec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #27 0x00007f38de930fac in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229 #28 0x00005641cc31608a in main (argc=4, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.5.4/shell/main.cpp:181 -- You are receiving this mail because: You are watching all bug changes.
