171336 2017-04-26 12:56:02 -0700 [Threaded Compositor] SHOULD NEVER BE REACHED in WebKit::CompositingRunLoop::updateCompleted 2017-05-16 06:39:16 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build PC Linux RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=172167 P2 Normal --- 1 mcatanzaro webkit-unassigned bugs-noreply cgarcia mcatanzaro olivier.blin zan oldest_to_newest 1301731 0 mcatanzaro 2017-04-26 12:56:02 -0700 This seems to be happening frequently when starting Epiphany, but I think I've seen it when closing Epiphany as well: SHOULD NEVER BE REACHED ../../Source/WebKit2/Shared/CoordinatedGraphics/threadedcompositor/CompositingRunLoop.cpp(181) : void WebKit::CompositingRunLoop::updateCompleted() Due to a gtk-doc bug (really!) my stacktrace is not as good as I prefer, sorry: #0 0x00007fca7393ae36 in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:323 #1 0x00007fca7bf1d0e0 in WebKit::CompositingRunLoop::updateCompleted() () at ../../Source/WebKit2/Shared/CoordinatedGraphics/threadedcompositor/CompositingRunLoop.cpp:181 #2 0x00007fca7bf220f9 in WebKit::ThreadedCompositor::sceneUpdateFinished() () at ../../Source/WebKit2/Shared/CoordinatedGraphics/threadedcompositor/ThreadedCompositor.cpp:226 #3 0x00007fca7bf22040 in WebKit::ThreadedCompositor::renderLayerTree() () at ../../Source/WebKit2/Shared/CoordinatedGraphics/threadedcompositor/ThreadedCompositor.cpp:214 #4 0x00007fca7bf21cb1 in WebKit::ThreadedCompositor::forceRepaint()::{lambda()#1}::operator()() const () at ../../Source/WebKit2/Shared/CoordinatedGraphics/threadedcompositor/ThreadedCompositor.cpp:183 #5 0x00007fca7bf2622e in WTF::Function<void ()>::CallableWrapper<WebKit::ThreadedCompositor::forceRepaint()::{lambda()#1}>::call() () at ../../Source/WTF/wtf/Function.h:89 #6 0x0000000002d60121 in WTF::Function<void ()>::operator()() const () at ../../Source/WTF/wtf/Function.h:50 #7 0x00007fca7bf1ce32 in WebKit::CompositingRunLoop::performTaskSync(WTF::Function<void ()>&&)::{lambda()#1}::operator()() const () at ../../Source/WebKit2/Shared/CoordinatedGraphics/threadedcompositor/CompositingRunLoop.cpp:142 #8 0x00007fca7bf1ddb0 in WTF::Function<void ()>::CallableWrapper<WebKit::CompositingRunLoop::performTaskSync(WTF::Function<void ()>&&)::{lambda()#1}>::call() () at ../../Source/WTF/wtf/Function.h:89 #9 0x0000000002d60121 in WTF::Function<void ()>::operator()() const () at ../../Source/WTF/wtf/Function.h:50 #10 0x00007fca7399a0f4 in WTF::WorkQueue::dispatch(WTF::Function<void ()>&&)::{lambda()#1}::operator()() const () at ../../Source/WTF/wtf/generic/WorkQueueGeneric.cpp:63 #11 0x00007fca7399b2cc in WTF::Function<void ()>::CallableWrapper<WTF::WorkQueue::dispatch(WTF::Function<void ()>&&)::{lambda()#1}>::call() () at ../../Source/WTF/wtf/Function.h:89 #12 0x0000000002d60121 in WTF::Function<void ()>::operator()() const () at ../../Source/WTF/wtf/Function.h:50 #13 0x00007fca73959bdc in WTF::RunLoop::performWork() () at ../../Source/WTF/wtf/RunLoop.cpp:106 #14 0x00007fca7399b810 in WTF::RunLoop::RunLoop()::{lambda(void*)#1}::operator()(void*) const () at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:68 #15 0x00007fca7399b834 in WTF::RunLoop::RunLoop()::{lambda(void*)#1}::_FUN(void*) () at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:70 #16 0x00007fca7399b7b0 in WTF::{lambda(_GSource*, int (*)(void*), void*)#1}::operator()(_GSource*, int (*)(void*), void*) const () at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:45 #17 0x00007fca7399b7df in WTF::{lambda(_GSource*, int (*)(void*), void*)#1}::_FUN(_GSource*, int (*)(void*), void*) () at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:46 #18 0x00007fca6d9fb49a in g_main_dispatch (context=0xae03a50) at /home/mcatanzaro/Projects/GNOME/glib/glib/gmain.c:3230 #19 g_main_context_dispatch (context=context@entry=0xae03a50) at /home/mcatanzaro/Projects/GNOME/glib/glib/gmain.c:3895 #20 0x00007fca6d9fb818 in g_main_context_iterate (context=0xae03a50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /home/mcatanzaro/Projects/GNOME/glib/glib/gmain.c:3968 #21 0x00007fca6d9fbb32 in g_main_loop_run (loop=0xa9c1970) at /home/mcatanzaro/Projects/GNOME/glib/glib/gmain.c:4164 #22 0x00007fca7399bcfd in WTF::RunLoop::run() () at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:96 #23 0x00007fca73999fab in WTF::WorkQueue::platformInitialize(char const*, WTF::WorkQueue::Type, WTF::WorkQueue::QOS)::{lambda()#1}::operator()() const () at ../../Source/WTF/wtf/generic/WorkQueueGeneric.cpp:44 #24 0x00007fca7399a4fa in std::_Function_handler<void (), WTF::WorkQueue::platformInitialize(char const*, WTF::WorkQueue::Type, WTF::WorkQueue::QOS)::{lambda()#1}>::_M_invoke(std::_Any_data const&) () at /usr/include/c++/6.3.1/functional:1731 #25 0x0000000002ccf4f2 in std::function<void ()>::operator()() const () at /usr/include/c++/6.3.1/functional:2127 #26 0x00007fca7395b9ea in WTF::threadEntryPoint(void*) () at ../../Source/WTF/wtf/Threading.cpp:98 #27 0x00007fca73998a86 in WTF::wtfThreadEntryPoint(void*) () at ../../Source/WTF/wtf/ThreadingPthreads.cpp:174 #28 0x00007fca699ce6ca in start_thread (arg=0x7fca0f38a700) at pthread_create.c:333 #29 0x00007fca68626f7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 1304244 1 olivier.blin 2017-05-03 14:22:42 -0700 Similar to this one? https://github.com/WebPlatformForEmbedded/WPEWebKit/issues/180 1304562 2 mcatanzaro 2017-05-04 04:04:43 -0700 Yes but something changed, it happens very very frequently now. 1304568 3 309031 cgarcia 2017-05-04 04:47:03 -0700 Created attachment 309031 Patch 1304585 4 cgarcia 2017-05-04 05:42:24 -0700 Committed r216182: <http://trac.webkit.org/changeset/216182> 309031 2017-05-04 04:47:03 -0700 2017-05-04 05:13:54 -0700 Patch wk2-tc-assert-force-repaint.diff text/plain 3175 cgarcia ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJLaXQyL0NoYW5nZUxvZyBiL1NvdXJjZS9XZWJLaXQyL0No 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