Application: plasmashell (5.4.0) Qt Version: 5.4.2 Operating System: Linux 4.2.0-7-generic x86_64 Distribution: Ubuntu Wily Werewolf (development branch) -- Information about the crash: - What I was doing when the application crashed: clicked on the icon in the taskbar for Kpat - Custom settings of the application: launcher in the taskbar when it's not running. When I try to start Kpat from krunner, TWO instances show up. One will start, one will not. The other reports "KDEInit could not launch '/usr/games/kpat'. This behavior began after upgrading to Plasma 5.4. Upgrading to 5.4.1 did not change this crash behavior. The crash can be reproduced every time. -- Backtrace: Application: Plasma (plasmashell), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7ff62538a800 (LWP 14054))] Thread 8 (Thread 0x7ff610a05700 (LWP 14056)): #0 0x00007ff61fb5b8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007ff623b75bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007ff623b7774f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007ff612d4f9e9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so #4 0x00007ff62024d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ff61f33d6aa in start_thread (arg=0x7ff610a05700) at pthread_create.c:333 #6 0x00007ff61fb66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 7 (Thread 0x7ff60a20f700 (LWP 14060)): #0 0x00007ff61fb5b8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007ff61c90622c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ff61c90633c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ff620483e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ff62042a2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ff620248374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ff622a45f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007ff62024d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ff61f33d6aa in start_thread (arg=0x7ff60a20f700) at pthread_create.c:333 #9 0x00007ff61fb66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 6 (Thread 0x7ff5fefc5700 (LWP 14061)): #0 0x00007ff61c9051c0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007ff61c9060e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ff61c90633c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ff620483e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ff62042a2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ff620248374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ff622a45f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007ff62024d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ff61f33d6aa in start_thread (arg=0x7ff5fefc5700) at pthread_create.c:333 #9 0x00007ff61fb66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7ff5f7fff700 (LWP 14065)): #0 0x00007ff62024548a in QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x00007ff62048339f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ff61c9057bd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ff61c90615b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007ff61c90633c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ff620483e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ff62042a2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007ff620248374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ff622a45f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #9 0x00007ff62024d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007ff61f33d6aa in start_thread (arg=0x7ff5f7fff700) at pthread_create.c:333 #11 0x00007ff61fb66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7ff5f6ddf700 (LWP 14066)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007ff624dd3114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #2 0x00007ff624dd3159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #3 0x00007ff61f33d6aa in start_thread (arg=0x7ff5f6ddf700) at pthread_create.c:333 #4 0x00007ff61fb66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7ff56bfff700 (LWP 14067)): #0 0x00007ff61c94ab94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007ff61c9061e6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007ff61c90633c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ff620483e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ff62042a2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ff620248374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ff6233c0ef6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007ff62024d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ff61f33d6aa in start_thread (arg=0x7ff56bfff700) at pthread_create.c:333 #9 0x00007ff61fb66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7ff5599b8700 (LWP 14070)): #0 0x00007ff620481e2b in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x00007ff62048374c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ff61c9057bd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ff61c90615b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007ff61c90633c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ff620483e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ff62042a2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007ff620248374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ff55bc526b7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so #9 0x00007ff62024d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007ff61f33d6aa in start_thread (arg=0x7ff5599b8700) at pthread_create.c:333 #11 0x00007ff61fb66eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7ff62538a800 (LWP 14054)): [KCrash Handler] #6 brw_meta_fast_clear (brw=brw@entry=0x2a9fce8, fb=fb@entry=0x60de0a0, buffers=buffers@entry=34, partial_clear=partial_clear@entry=false) at ../../../../../../../src/mesa/drivers/dri/i965/brw_meta_fast_clear.c:446 #7 0x00007ff603b5d06c in brw_clear (ctx=0x2a9fce8, mask=34) at ../../../../../../../src/mesa/drivers/dri/i965/brw_clear.c:246 #8 0x00007ff6233f337a in QSGBatchRenderer::Renderer::renderBatches() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #9 0x00007ff6233f7b3a in QSGBatchRenderer::Renderer::render() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #10 0x00007ff623402a1c in QSGRenderer::renderScene(QSGBindable const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #11 0x00007ff623402e9b in QSGRenderer::renderScene(unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #12 0x00007ff6234115be in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #13 0x00007ff62345b20c in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #14 0x00007ff62342bbac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #15 0x00007ff62342c6d1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #16 0x00007ff620f0ab8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007ff620f10230 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #18 0x00007ff62042ca9b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #19 0x00007ff620482c1d in QTimerInfoList::activateTimers() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #20 0x00007ff620483121 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #21 0x00007ff61c906037 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #22 0x00007ff61c906290 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #23 0x00007ff61c90633c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #24 0x00007ff620483dff in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #25 0x00007ff62042a2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #26 0x00007ff620431e4c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #27 0x0000000000432063 in main (argc=4, argv=<optimized out>) at ../../shell/main.cpp:176 Possible duplicates by query: bug 352496, bug 352467, bug 352456, bug 352439, bug 352433. Reported using DrKonqi
*** This bug has been marked as a duplicate of bug 349519 ***