Bug 170602 - Crash in WebCore::GraphicsContext::platformContext()
Summary: Crash in WebCore::GraphicsContext::platformContext()
Status: RESOLVED DUPLICATE of bug 170241
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebCore Misc. (show other bugs)
Version: Safari Technology Preview
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL: http://substance.io/examples/tangle/
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2017-04-07 08:42 PDT by Dieter Komendera
Modified: 2017-05-09 06:43 PDT (History)
2 users (show)

See Also:

Attachments
crash log (84.91 KB, text/plain)
2017-04-07 08:42 PDT, Dieter Komendera 		no flags Details
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Description Dieter Komendera 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)
Comment 1 Alexey Proskuryakov 2017-04-08 00:15:36 PDT 
rdar://problem/30991909
Comment 2 Dieter Komendera 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)
Comment 3 Wenson Hsieh 2017-05-08 09:15:31 PDT 
This was fixed in <https://trac.webkit.org/changeset/214556/webkit>.
Comment 4 Dieter Komendera 2017-05-09 06:43:10 PDT 

*** This bug has been marked as a duplicate of bug 170241 ***