#0  0x00007f7a0d677f79 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  [Error: ../nptl/sysdeps/unix/sysv/linux/raise.c was not found in source tree]
#1  0x00007f7a0c3dc012 in possiblyRaiseForApport (sig=6) at ../../kdeui/util/kcrash.cpp:252
  [Error: ../../kdeui/util/kcrash.cpp was not found in source tree]
#2  KCrash::defaultCrashHandler (sig=6) at ../../kdeui/util/kcrash.cpp:476
  [Error: ../../kdeui/util/kcrash.cpp was not found in source tree]
#3  <signal handler called>
#4  0x00007f7a0d677f79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  [Error: ../nptl/sysdeps/unix/sysv/linux/raise.c was not found in source tree]
#5  0x00007f7a0d67b388 in __GI_abort () at abort.c:89
  [Error: abort.c was not found in source tree]
#6  0x00007f7a0d670e36 in __assert_fail_base (fmt=0x7f7a0d7c2718 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f79edba7a63 "brw->hw_ctx != ((void *)0)", file=file@entry=0x7f79edba7a28 "../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c", line=line@entry=43, function=function@entry=0x7f79edba7a80 <__PRETTY_FUNCTION__.35445> "brw_get_graphics_reset_status") at assert.c:92
  [Error: assert.c was not found in source tree]
#7  0x00007f7a0d670ee2 in __GI___assert_fail (assertion=assertion@entry=0x7f79edba7a63 "brw->hw_ctx != ((void *)0)", file=file@entry=0x7f79edba7a28 "../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c", line=line@entry=43, function=function@entry=0x7f79edba7a80 <__PRETTY_FUNCTION__.35445> "brw_get_graphics_reset_status") at assert.c:101
  [Error: assert.c was not found in source tree]
#8  0x00007f79eda76b25 in brw_get_graphics_reset_status (ctx=<optimized out>) at ../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c:43
  [Error: ../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c was not found in source tree]
#9  0x00007f79ed7fe3e0 in _mesa_GetGraphicsResetStatusARB () at ../../../../src/mesa/main/getstring.c:327
  [Error: ../../../../src/mesa/main/getstring.c was not found in source tree]
#10 0x00007f7a0dae3959 in KWin::SceneOpenGL::paint (this=0x2d75740, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:372
  [Error: ../../kwin/scene_opengl.cpp was not found in source tree]
#11 0x00007f7a0dac87f3 in KWin::Compositor::performCompositing (this=this@entry=0x2740180) at ../../kwin/composite.cpp:618
  [Error: ../../kwin/composite.cpp was not found in source tree]
#12 0x00007f7a0dac9aef in KWin::Compositor::slotCompositingOptionsInitialized (this=0x2740180) at ../../kwin/composite.cpp:273
  [Error: ../../kwin/composite.cpp was not found in source tree]
#13 0x00007f7a0da523d5 in KWin::Compositor::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at moc_composite.cpp:193
  [Error: moc_composite.cpp was not found in source tree]
#14 0x00007f7a07b0e87a in QMetaObject::activate (sender=0x27d9770, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
  [Error: kernel/qobject.cpp was not found in source tree]
#15 0x00007f7a079e8b18 in QFutureWatcherBase::event (this=<optimized out>, event=0x7f79e80015b0) at concurrent/qfuturewatcher.cpp:344
  [Error: concurrent/qfuturewatcher.cpp was not found in source tree]
#16 0x00007f7a06e93e2c in QApplicationPrivate::notify_helper (this=this@entry=0x256de60, receiver=receiver@entry=0x27d9770, e=e@entry=0x7f79e80015b0) at kernel/qapplication.cpp:4567
  [Error: kernel/qapplication.cpp was not found in source tree]
#17 0x00007f7a06e9a4a0 in QApplication::notify (this=0x7fff75cd2dc0, receiver=0x27d9770, e=0x7f79e80015b0) at kernel/qapplication.cpp:4353
  [Error: kernel/qapplication.cpp was not found in source tree]
#18 0x00007f7a0c37fbaa in KApplication::notify (this=0x7fff75cd2dc0, receiver=0x27d9770, event=0x7f79e80015b0) at ../../kdeui/kernel/kapplication.cpp:311
  [Error: ../../kdeui/kernel/kapplication.cpp was not found in source tree]
#19 0x00007f7a07afa4dd in QCoreApplication::notifyInternal (this=0x7fff75cd2dc0, receiver=receiver@entry=0x27d9770, event=event@entry=0x7f79e80015b0) at kernel/qcoreapplication.cpp:953
  [Error: kernel/qcoreapplication.cpp was not found in source tree]
#20 0x00007f7a07afdb3d in sendEvent (event=0x7f79e80015b0, receiver=0x27d9770) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
  [Error: ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h was not found in source tree]
#21 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x25101f0) at kernel/qcoreapplication.cpp:1577
  [Error: kernel/qcoreapplication.cpp was not found in source tree]
#22 0x00007f7a06f3632c in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
  [Error: ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h was not found in source tree]
#23 QEventDispatcherX11::processEvents (this=0x2511af0, flags=...) at kernel/qeventdispatcher_x11.cpp:75
  [Error: kernel/qeventdispatcher_x11.cpp was not found in source tree]
#24 0x00007f7a07af90af in QEventLoop::processEvents (this=this@entry=0x7fff75cd2c30, flags=...) at kernel/qeventloop.cpp:149
  [Error: kernel/qeventloop.cpp was not found in source tree]
#25 0x00007f7a07af93a5 in QEventLoop::exec (this=0x7fff75cd2c30, flags=...) at kernel/qeventloop.cpp:204
  [Error: kernel/qeventloop.cpp was not found in source tree]
#26 0x00007f7a07afeb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
  [Error: kernel/qcoreapplication.cpp was not found in source tree]
#27 0x00007f7a0da82856 in kdemain (argc=3, argv=0x7fff75cd2f08) at ../../kwin/main.cpp:597
  [Error: ../../kwin/main.cpp was not found in source tree]
#28 0x00007f7a0d662ec5 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=3, argv=0x7fff75cd2f08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff75cd2ef8) at libc-start.c:287
  [Error: libc-start.c was not found in source tree]
#29 0x00000000004006fe in _start ()