Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7b605b2840 (LWP 2621))]

Thread 4 (Thread 0x7f7b5d5ad700 (LWP 2632)):
#0  0x00007f7b6d4c0c78 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f7b742c4f58 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007f7b742c0f6c in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f7b742c3ece in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f7b6d4bb314 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f7b75c8d24d in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f7b4ffff700 (LWP 2651)):
#0  0x00007f7b75c86193 in select () from /usr/lib/libc.so.6
#1  0x00007f7b74501201 in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/libQt5Core.so.5
#2  0x00007f7b74502dd8 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/libQt5Core.so.5
#3  0x00007f7b74503365 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f7b744ac162 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f7b742bef44 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f7b6e2db6b5 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f7b742c3ece in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f7b6d4bb314 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f7b75c8d24d in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f7b4d764700 (LWP 2671)):
#0  0x00007f7b6d4c08cf in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f7b4ea16903 in cnd_wait (mtx=0x22b43c8, cond=0x22b43f0) at ../../../../../include/c11/threads_posix.h:154
#2  pipe_semaphore_wait (sema=0x22b43c8) at ../../../../../src/gallium/auxiliary/os/os_thread.h:248
#3  radeon_drm_cs_emit_ioctl (param=param@entry=0x22b40b0) at radeon_drm_winsys.c:592
#4  0x00007f7b4ea16037 in impl_thrd_routine (p=<optimized out>) at ../../../../../include/c11/threads_posix.h:87
#5  0x00007f7b6d4bb314 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f7b75c8d24d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f7b605b2840 (LWP 2621)):
[KCrash Handler]
#5  (anonymous namespace)::builtin_variable_generator::add_uniform (this=this@entry=0x7fff41a3faa0, type=0x0, name=name@entry=0x7f7b4ea7ba95 "gl_DepthRange") at ../../src/glsl/builtin_variables.cpp:480
#6  0x00007f7b4e666875 in generate_uniforms (this=0x7fff41a3faa0) at ../../src/glsl/builtin_variables.cpp:741
#7  _mesa_glsl_initialize_variables (instructions=instructions@entry=0x22d6d78, state=state@entry=0x244c538) at ../../src/glsl/builtin_variables.cpp:1053
#8  0x00007f7b4e640ca7 in _mesa_ast_to_hir (instructions=0x22d6d78, state=state@entry=0x244c538) at ../../src/glsl/ast_to_hir.cpp:73
#9  0x00007f7b4e68ba3f in _mesa_glsl_compile_shader (ctx=ctx@entry=0x7f7b4cd3b010, shader=shader@entry=0x227c898, dump_ast=dump_ast@entry=false, dump_hir=dump_hir@entry=false) at ../../src/glsl/glsl_parser_extras.cpp:1474
#10 0x00007f7b4e5717af in compile_shader (ctx=0x7f7b4cd3b010, shaderObj=<optimized out>) at ../../src/mesa/main/shaderapi.c:854
#11 0x00007f7b6e732c20 in KWin::GLShader::compile(unsigned int, unsigned int, QByteArray const&) const () from /usr/lib/libkwinglutils.so.5
#12 0x00007f7b6e7332db in KWin::GLShader::load(QByteArray const&, QByteArray const&) () from /usr/lib/libkwinglutils.so.5
#13 0x00007f7b6e731dfe in KWin::GLShader::loadFromFiles(QString const&, QString const&) () from /usr/lib/libkwinglutils.so.5
#14 0x00007f7b6e7327c6 in KWin::ShaderManager::initShaders() () from /usr/lib/libkwinglutils.so.5
#15 0x00007f7b6e732aa0 in KWin::ShaderManager::instance() () from /usr/lib/libkwinglutils.so.5
#16 0x00007f7b7587655b in ?? () from /usr/lib/libkwin.so.5
#17 0x00007f7b75876ef3 in ?? () from /usr/lib/libkwin.so.5
#18 0x00007f7b75853901 in ?? () from /usr/lib/libkwin.so.5
#19 0x00007f7b75854042 in ?? () from /usr/lib/libkwin.so.5
#20 0x00007f7b75911515 in ?? () from /usr/lib/libkwin.so.5
#21 0x00007f7b744df0ea in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#22 0x00007f7b74d96d5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#23 0x00007f7b74d9c340 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#24 0x00007f7b744ae6cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#25 0x00007f7b744b070b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#26 0x00007f7b74503202 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#27 0x00007f7b60209c7d in ?? () from /usr/lib/qt/plugins/platforms/libqxcb.so
#28 0x00007f7b744ac162 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#29 0x00007f7b744b3b3c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#30 0x00007f7b75f4cb0b in kdemain () from /usr/lib/libkdeinit5_kwin_x11.so
#31 0x00007f7b75bc5040 in __libc_start_main () from /usr/lib/libc.so.6
#32 0x00000000004007de in _start ()