RESOLVED DUPLICATE of bug 170241 170602
Crash in WebCore::GraphicsContext::platformContext() 
https://bugs.webkit.org/show_bug.cgi?id=170602
Summary Crash in WebCore::GraphicsContext::platformContext()
Dieter Komendera
Reported 2017-04-07 08:42:44 PDT
Created attachment 306507 [details] crash log To reproduce: 1) go to http://substance.io/examples/tangle/ 2) click and drag the green number 2050 Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.WebCore 0x00000001087a4a67 WebCore::GraphicsContext::platformContext() const + 7 1 com.apple.WebKit 0x0000000107e41933 WebKit::WebDragClient::startDrag(WebCore::DragImage, WebCore::IntPoint const&, WebCore::IntPoint const&, WebCore::FloatPoint const&, WebCore::DataTransfer&, WebCore::Frame&, WebCore::DragSourceAction) + 239 2 com.apple.WebCore 0x0000000108c7ea0b WebCore::DragController::doSystemDrag(WebCore::DragImage, WebCore::IntPoint const&, WebCore::IntPoint const&, WebCore::IntRect const&, WebCore::DataTransfer&, WebCore::Frame&, WebCore::DragSourceAction) + 427 3 com.apple.WebCore 0x0000000108c7dd0f WebCore::DragController::startDrag(WebCore::Frame&, WebCore::DragState const&, WebCore::DragOperation, WebCore::PlatformMouseEvent const&, WebCore::IntPoint const&) + 6207 4 com.apple.WebCore 0x0000000108939843 WebCore::EventHandler::handleDrag(WebCore::MouseEventWithHitTestResults const&, WebCore::CheckDragHysteresis) + 2467 5 com.apple.WebCore 0x0000000108cc292a WebCore::EventHandler::handleMouseDraggedEvent(WebCore::MouseEventWithHitTestResults const&, WebCore::CheckDragHysteresis) + 58 6 com.apple.WebCore 0x00000001088a6db9 WebCore::EventHandler::handleMouseMoveEvent(WebCore::PlatformMouseEvent const&, WebCore::HitTestResult*, bool) + 1337 7 com.apple.WebCore 0x00000001088a66c0 WebCore::EventHandler::mouseMoved(WebCore::PlatformMouseEvent const&) + 160 8 com.apple.WebKit 0x0000000107c8eb14 WebKit::WebPage::mouseEvent(WebKit::WebMouseEvent const&) + 612 Safari Technology Preview Release 27 (Safari 10.2, WebKit 12604.1.15.2)
Attachments
crash log (84.91 KB, text/plain)
2017-04-07 08:42 PDT, Dieter Komendera 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2017-04-08 00:15:36 PDT
rdar://problem/30991909
Dieter Komendera
Comment 2 2017-05-08 09:12:39 PDT
Crash doesn't reproduce any more with STP Release 29 (Safari 10.2, WebKit 12604.1.19.0.1)
Wenson Hsieh
Comment 3 2017-05-08 09:15:31 PDT
This was fixed in <https://trac.webkit.org/changeset/214556/webkit>.
Dieter Komendera
Comment 4 2017-05-09 06:43:10 PDT
*** This bug has been marked as a duplicate of bug 170241 ***
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