Application: plasmashell (5.4.2)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-35-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
- What I was doing when the application crashed:
I was opening the  activity change menu when plasma crashed. It's the first time it happens doing that...

-- 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 0x7f5206740800 (LWP 1553))]

Thread 8 (Thread 0x7f51f1d95700 (LWP 1558)):
#0  0x00007f5200ef288d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5204f39bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f5204f3b74f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f51f40dfa39 in QXcbEventReader::run (this=0x1883810) at qxcbconnection.cpp:1105
#4  0x00007f52015e52be in QThreadPrivate::start (arg=0x1883810) at thread/qthread_unix.cpp:337
#5  0x00007f52006d46aa in start_thread (arg=0x7f51f1d95700) at pthread_create.c:333
#6  0x00007f5200efde9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f51eb5ef700 (LWP 1580)):
#0  0x00007f51fdce3884 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f51fdc9ed8a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f51fdc9f250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f51fdc9f2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f520181c29b in QEventDispatcherGlib::processEvents (this=0x7f51e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f52017c275a in QEventLoop::exec (this=this@entry=0x7f51eb5eeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f52015e03d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5203e08f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f52015e52be in QThreadPrivate::start (arg=0x194a7c0) at thread/qthread_unix.cpp:337
#9  0x00007f52006d46aa in start_thread (arg=0x7f51eb5ef700) at pthread_create.c:333
#10 0x00007f5200efde9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f51dffd0700 (LWP 1583)):
#0  0x00007f51fdce3884 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f51fdc9ebaa in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f51fdc9f190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f51fdc9f2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f520181c29b in QEventDispatcherGlib::processEvents (this=0x7f51d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f52017c275a in QEventLoop::exec (this=this@entry=0x7f51dffcfda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f52015e03d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5203e08f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f52015e52be in QThreadPrivate::start (arg=0x1d9df10) at thread/qthread_unix.cpp:337
#9  0x00007f52006d46aa in start_thread (arg=0x7f51dffd0700) at pthread_create.c:333
#10 0x00007f5200efde9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f51dd7f9700 (LWP 1587)):
#0  0x00007f5200ef288d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f51fdc9f1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f51fdc9f2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f520181c29b in QEventDispatcherGlib::processEvents (this=0x7f51d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f52017c275a in QEventLoop::exec (this=this@entry=0x7f51dd7f8da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f52015e03d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5203e08f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f52015e52be in QThreadPrivate::start (arg=0x1e58e40) at thread/qthread_unix.cpp:337
#8  0x00007f52006d46aa in start_thread (arg=0x7f51dd7f9700) at pthread_create.c:333
#9  0x00007f5200efde9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f51cfdf7700 (LWP 1598)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5206194114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f5206194159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f52006d46aa in start_thread (arg=0x7f51cfdf7700) at pthread_create.c:333
#4  0x00007f5200efde9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f514b82a700 (LWP 1634)):
#0  0x00007f5200ef288d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f51fdc9f1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f51fdc9f2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f520181c29b in QEventDispatcherGlib::processEvents (this=0x7f513c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f52017c275a in QEventLoop::exec (this=this@entry=0x7f514b829d50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f52015e03d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f5204784ef6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f52015e52be in QThreadPrivate::start (arg=0x2723920) at thread/qthread_unix.cpp:337
#8  0x00007f52006d46aa in start_thread (arg=0x7f514b82a700) at pthread_create.c:333
#9  0x00007f5200efde9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f514c02b700 (LWP 1771)):
#0  0x00007f51fdce3884 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f51fdc9f306 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f520181c29b in QEventDispatcherGlib::processEvents (this=0x7f51440032d0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007f52017c275a in QEventLoop::exec (this=this@entry=0x7f514c02ad80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f52015e03d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f514825d8f7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#6  0x00007f52015e52be in QThreadPrivate::start (arg=0x5378d00) at thread/qthread_unix.cpp:337
#7  0x00007f52006d46aa in start_thread (arg=0x7f514c02b700) at pthread_create.c:333
#8  0x00007f5200efde9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f5206740800 (LWP 1553)):
[KCrash Handler]
#6  gen8_update_renderbuffer_surface (brw=0x2c6e1a8, rb=0x8a7efe0, layered=false, unit=0, surf_index=0) at ../../../../../../../src/mesa/drivers/dri/i965/gen8_surface_state.c:390
#7  0x00007f51e8e52309 in brw_update_renderbuffer_surfaces (brw=0x2c6e1a8, fb=0x7eee370, render_target_start=0, surf_offset=0x2c92e84) at ../../../../../../../src/mesa/drivers/dri/i965/brw_wm_surface_state.c:753
#8  0x00007f51e8e523a1 in update_renderbuffer_surfaces (brw=0x2c6e1a8) at ../../../../../../../src/mesa/drivers/dri/i965/brw_wm_surface_state.c:775
#9  0x00007f51e8e27f69 in check_and_emit_atom (atom=0x2c935c8, state=<synthetic pointer>, brw=0x2c6e1a8) at ../../../../../../../src/mesa/drivers/dri/i965/brw_state_upload.c:667
#10 brw_upload_pipeline_state (pipeline=BRW_RENDER_PIPELINE, brw=0x2c6e1a8) at ../../../../../../../src/mesa/drivers/dri/i965/brw_state_upload.c:768
#11 brw_upload_render_state (brw=brw@entry=0x2c6e1a8) at ../../../../../../../src/mesa/drivers/dri/i965/brw_state_upload.c:790
#12 0x00007f51e8db1252 in brw_try_draw_prims (indirect=<optimized out>, max_index=<optimized out>, min_index=<optimized out>, ib=<optimized out>, nr_prims=<optimized out>, prims=<optimized out>, arrays=<optimized out>, ctx=0x2c6e1a8) at ../../../../../../../src/mesa/drivers/dri/i965/brw_draw.c:516
#13 brw_draw_prims (ctx=0x2c6e1a8, prims=<optimized out>, nr_prims=<optimized out>, ib=<optimized out>, index_bounds_valid=<optimized out>, min_index=0, max_index=3, unused_tfb_object=0x0, stream=0, indirect=0x0) at ../../../../../../../src/mesa/drivers/dri/i965/brw_draw.c:606
#14 0x00007f51e8bed33a in vbo_draw_arrays (ctx=0x2c6e1a8, mode=mode@entry=6, start=start@entry=0, count=count@entry=4, numInstances=numInstances@entry=1, baseInstance=baseInstance@entry=0) at ../../../../src/mesa/vbo/vbo_exec_array.c:645
#15 0x00007f51e8bed5a3 in vbo_exec_DrawArrays (mode=mode@entry=6, start=start@entry=0, count=count@entry=4) at ../../../../src/mesa/vbo/vbo_exec_array.c:797
#16 0x00007f51e8beea65 in _mesa_DrawArrays (mode=mode@entry=6, first=first@entry=0, count=count@entry=4) at ../../../../src/mesa/vbo/vbo_exec_array.c:1854
#17 0x00007f51e8c67440 in meta_clear (ctx=ctx@entry=0x2c6e1a8, buffers=buffers@entry=34, glsl=glsl@entry=true) at ../../../../src/mesa/drivers/common/meta.c:1814
#18 0x00007f51e8c6791a in _mesa_meta_glsl_Clear (ctx=ctx@entry=0x2c6e1a8, buffers=buffers@entry=34) at ../../../../src/mesa/drivers/common/meta.c:1502
#19 0x00007f51e8d9ee4b in brw_clear (ctx=0x2c6e1a8, mask=0) at ../../../../../../../src/mesa/drivers/dri/i965/brw_clear.c:264
#20 0x00007f52047b737a in QSGBatchRenderer::Renderer::renderBatches() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f52047bbb3a in QSGBatchRenderer::Renderer::render() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f52047c6a1c in QSGRenderer::renderScene(QSGBindable const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f52047c6e9b in QSGRenderer::renderScene(unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007f52047d55be in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#25 0x00007f520481f20c in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f52047efbac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#27 0x00007f52047f06d1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#28 0x00007f52022a2b8c in QApplicationPrivate::notify_helper (this=this@entry=0x186c480, receiver=receiver@entry=0x1a94ac0, e=e@entry=0x7ffe5eeb2a60) at kernel/qapplication.cpp:3720
#29 0x00007f52022a8230 in QApplication::notify (this=0x7ffe5eeb2e20, receiver=0x1a94ac0, e=0x7ffe5eeb2a60) at kernel/qapplication.cpp:3503
#30 0x00007f52017c4f1b in QCoreApplication::notifyInternal (this=0x7ffe5eeb2e20, receiver=0x1a94ac0, event=event@entry=0x7ffe5eeb2a60) at kernel/qcoreapplication.cpp:935
#31 0x00007f520181b09d in QCoreApplication::sendEvent (event=0x7ffe5eeb2a60, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#32 QTimerInfoList::activateTimers (this=0x18ad890) at kernel/qtimerinfo_unix.cpp:635
#33 0x00007f520181b5a1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#34 0x00007f51fdc9eff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f51fdc9f250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f51fdc9f2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f520181c27f in QEventDispatcherGlib::processEvents (this=0x18a0490, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#38 0x00007f52017c275a in QEventLoop::exec (this=this@entry=0x7ffe5eeb2ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#39 0x00007f52017ca2cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#40 0x00007f5201adf00c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#41 0x00007f520229f025 in QApplication::exec () at kernel/qapplication.cpp:2956
#42 0x00000000004322c3 in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:176

Possible duplicates by query: bug 361507, bug 361421, bug 360721, bug 359953, bug 359635.

Reported using DrKonqi