219492 2020-12-03 08:35:24 -0800 ASSERTION FAILED: isMainThread() in WTF::Optional<IntSize> &WebCore::surfaceMaximumSize() 2020-12-03 15:15:33 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=219484 InRadar P2 Normal --- 1 ryanhaddad thorton rniwa thorton webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1711681 0 ryanhaddad 2020-12-03 08:35:24 -0800 The following assertion failure is seen on debug bots with imported/w3c/web-platform-tests/html/canvas/element/imagebitmap/createImageBitmap-in-worker-transfer.html ASSERTION FAILED: isMainThread() ./platform/graphics/cocoa/IOSurface.mm(247) : WTF::Optional<IntSize> &WebCore::surfaceMaximumSize() 1 0x4f0b8ec29 WTFCrash 2 0x4ce8a9bdb WTFCrashWithInfo(int, char const*, char const*, int) 3 0x4d04d6e9c WebCore::surfaceMaximumSize() 4 0x4d04d6ebd WebCore::IOSurface::maximumSize() 5 0x4d2bf1b2c WebCore::ImageBufferIOSurfaceBackend::calculateBackendSize(WebCore::FloatSize const&, float) 6 0x4d2bf1c45 WebCore::ImageBufferIOSurfaceBackend::create(WebCore::FloatSize const&, float, WebCore::ColorSpace, CGColorSpace*, WebCore::PixelFormat, WebCore::HostWindow const*) 7 0x4d2bf2088 WebCore::ImageBufferIOSurfaceBackend::create(WebCore::FloatSize const&, float, WebCore::ColorSpace, WebCore::PixelFormat, WebCore::HostWindow const*) 8 0x4d2b0be95 WTF::RefPtr<WebCore::ConcreteImageBuffer<WebCore::ImageBufferIOSurfaceBackend>, WTF::RawPtrTraits<WebCore::ConcreteImageBuffer<WebCore::ImageBufferIOSurfaceBackend> >, WTF::DefaultRefDerefTraits<WebCore::ConcreteImageBuffer<WebCore::ImageBufferIOSurfaceBackend> > > WebCore::ConcreteImageBuffer<WebCore::ImageBufferIOSurfaceBackend>::create<WebCore::ConcreteImageBuffer<WebCore::ImageBufferIOSurfaceBackend> >(WebCore::FloatSize const&, float, WebCore::ColorSpace, WebCore::PixelFormat, WebCore::HostWindow const*) 9 0x4d2b0bda9 WebCore::ImageBuffer::create(WebCore::FloatSize const&, WebCore::RenderingMode, float, WebCore::ColorSpace, WebCore::PixelFormat, WebCore::HostWindow const*) 10 0x4d1e4ca24 WebCore::ImageBitmap::createImageBuffer(WebCore::ScriptExecutionContext&, WebCore::FloatSize const&, WebCore::RenderingMode, float) 11 0x4d1e4fb93 WebCore::ImageBitmap::createFromBuffer(WebCore::ScriptExecutionContext&, WTF::Ref<JSC::ArrayBuffer, WTF::RawPtrTraits<JSC::ArrayBuffer> >&&, WTF::String, long long, WTF::URL const&, WebCore::ImageBitmapOptions&&, WTF::Optional<WebCore::IntRect>, WebCore::DOMPromiseDeferred<WebCore::IDLInterface<WebCore::ImageBitmap> >&&) 12 0x4d1e5b5ab WebCore::PendingImageBitmap::createImageBitmapAndResolvePromise() 13 0x4d1e5c2b7 decltype(*(std::__1::forward<WebCore::PendingImageBitmap*&>(fp0)).*fp()) std::__1::__invoke<void (WebCore::PendingImageBitmap::*&)(), WebCore::PendingImageBitmap*&, void>(void (WebCore::PendingImageBitmap::*&)(), WebCore::PendingImageBitmap*&) 14 0x4d1e5c230 std::__1::__bind_return<void (WebCore::PendingImageBitmap::*)(), std::__1::tuple<WebCore::PendingImageBitmap*>, std::__1::tuple<>, __is_valid_bind_return<void (WebCore::PendingImageBitmap::*)(), std::__1::tuple<WebCore::PendingImageBitmap*>, std::__1::tuple<> >::value>::type std::__1::__apply_functor<void (WebCore::PendingImageBitmap::*)(), std::__1::tuple<WebCore::PendingImageBitmap*>, 0ul, std::__1::tuple<> >(void (WebCore::PendingImageBitmap::*&)(), std::__1::tuple<WebCore::PendingImageBitmap*>&, std::__1::__tuple_indices<0ul>, std::__1::tuple<>&&) 15 0x4d1e5c1e9 std::__1::__bind_return<void (WebCore::PendingImageBitmap::*)(), std::__1::tuple<WebCore::PendingImageBitmap*>, std::__1::tuple<>, __is_valid_bind_return<void (WebCore::PendingImageBitmap::*)(), std::__1::tuple<WebCore::PendingImageBitmap*>, std::__1::tuple<> >::value>::type std::__1::__bind<void (WebCore::PendingImageBitmap::*&)(), WebCore::PendingImageBitmap*>::operator()<>() 16 0x4d1e5c18e WTF::Detail::CallableWrapper<std::__1::__bind<void (WebCore::PendingImageBitmap::*&)(), WebCore::PendingImageBitmap*>, void>::call() 17 0x4ce8bdf32 WTF::Function<void ()>::operator()() const 18 0x4d28645ae WebCore::SuspendableTimer::fired() 19 0x4d2987a44 WebCore::ThreadTimers::sharedTimerFiredInternal() 20 0x4d2994291 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const 21 0x4d299423e WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call() 22 0x4ce8bdf32 WTF::Function<void ()>::operator()() const 23 0x4d3932a6e WebCore::WorkerSharedTimer::fire() 24 0x4d3931f5e WebCore::WorkerRunLoop::runInMode(WebCore::WorkerOrWorkletGlobalScope*, WebCore::ModePredicate const&, WebCore::WorkerRunLoop::WaitMode) 25 0x4d3930f38 WebCore::WorkerRunLoop::run(WebCore::WorkerOrWorkletGlobalScope*) 26 0x4d3930ed8 WebCore::WorkerOrWorkletThread::runEventLoop() 27 0x4d3907174 WebCore::DedicatedWorkerThread::runEventLoop() 28 0x4d393113d WebCore::WorkerOrWorkletThread::workerOrWorkletThread() 29 0x4d396258b WebCore::WorkerThread::createThread()::$_0::operator()() const 30 0x4d396253e WTF::Detail::CallableWrapper<WebCore::WorkerThread::createThread()::$_0, void>::call() 31 0x4f0bba152 WTF::Function<void ()>::operator()() const LEAK: 1 WebPageProxy 1711682 1 webkit-bug-importer 2020-12-03 08:35:40 -0800 <rdar://problem/71937782> 1711684 2 ryanhaddad 2020-12-03 08:36:17 -0800 Started with https://trac.webkit.org/changeset/270392/webkit 1711734 3 thorton 2020-12-03 11:22:19 -0800 Oh dear! 1711794 4 415336 thorton 2020-12-03 13:46:06 -0800 Created attachment 415336 Patch 1711795 5 415336 thorton 2020-12-03 13:47:06 -0800 Comment on attachment 415336 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=415336&action=review > Source/WebCore/platform/graphics/cocoa/IOSurface.mm:259 > + if (size.isEmpty()) { I know that this is racy (might have gotten written from elsewhere), but I don't think it matters at all. 1711800 6 415336 rniwa 2020-12-03 13:51:05 -0800 Comment on attachment 415336 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=415336&action=review > Source/WebCore/platform/graphics/cocoa/IOSurface.mm:253 > - surfaceMaximumSize() = size; > + surfaceMaximumSize().store(size); Can we assert that new size is not empty? > Source/WebCore/platform/graphics/cocoa/IOSurface.mm:260 > + auto computedSize = computeMaximumSurfaceSize(); We should consider asserting that this won't happen when GPU process is enabled and we're in the web content process using ProcessPrivilege. 1711802 7 415341 thorton 2020-12-03 13:54:28 -0800 Created attachment 415341 Patch 1711815 8 415344 thorton 2020-12-03 14:18:25 -0800 Created attachment 415344 Patch 1711829 9 ews-feeder 2020-12-03 14:33:59 -0800 Patch 415341 does not build 1711854 10 ews-feeder 2020-12-03 15:15:32 -0800 Committed r270410: <https://trac.webkit.org/changeset/270410> All reviewed patches have been landed. Closing bug and clearing flags on attachment 415344. 415336 2020-12-03 13:46:06 -0800 2020-12-03 14:02:42 -0800 Patch bug-219492-20201203134606.patch text/plain 2297 thorton U3VidmVyc2lvbiBSZXZpc2lvbjogMjcwNDA2CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggZmRiZjBkODg2Y2Q0NGZh NTkyMjIyMTUyMDM1YzQ4NDU3YTY0Yjc5Zi4uMzhlYTUyMGFkNmI5MTY3Mjk1MDY3MGQxY2QyYjlh N2EzZTdmOGE5YSAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE4IEBACisyMDIwLTEyLTAzICBUaW0g SG9ydG9uICA8dGltb3RoeV9ob3J0b25AYXBwbGUuY29tPgorCisgICAgICAgIEFTU0VSVElPTiBG QUlMRUQ6IGlzTWFpblRocmVhZCgpIGluIFdURjo6T3B0aW9uYWw8SW50U2l6ZT4gJldlYkNvcmU6 OnN1cmZhY2VNYXhpbXVtU2l6ZSgpCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3No b3dfYnVnLmNnaT9pZD0yMTk0OTIKKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMh KS4KKworICAgICAgICBObyBuZXcgdGVzdHM7IGZpeGVzIGEgZmFpbGluZyB0ZXN0LgorCisgICAg 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