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<base href="https://bugs.webkit.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Crash in RenderLayerBacking::notifyAnimationStarted()"
href="https://bugs.webkit.org/show_bug.cgi?id=149914">149914</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Crash in RenderLayerBacking::notifyAnimationStarted()
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Local Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>iOS
</td>
</tr>
<tr>
<th>OS</th>
<td>iOS 9.0
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>Layout and Rendering
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dbates@webkit.org
</td>
</tr>
<tr>
<th>CC</th>
<td>ap@webkit.org, simon.fraser@apple.com
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=262673" name="attach_262673" title="Crash Report">attachment 262673</a> <a href="attachment.cgi?id=262673&action=edit" title="Crash Report">[details]</a></span>
Crash Report
When I looked at <<a href="https://build.webkit.org/results/Apple%20iOS%209%20Simulator%20Release%20WK2%20(Tests)/r190705%20(180)/results.html">https://build.webkit.org/results/Apple%20iOS%209%20Simulator%20Release%20WK2%20(Tests)/r190705%20(180)/results.html</a>>, I noticed that the test compositing/reflections/nested-reflection.html crashed the iOS WebContent process with the following backtrace:
[[
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000358
...
Application Specific Information:
CoreSimulator 179 - Device: iPhone 5s WebKit Tester - Runtime: iOS 9.0 (13A340) - DeviceType: iPhone 5s
CRASHING TEST: compositing/reflections/nested-reflection-transition.html
...
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.apple.WebCore 0x0000000114e9e67f WebCore::RenderLayerBacking::notifyAnimationStarted(WebCore::GraphicsLayer const*, WTF::String const&, double) + 31
1 com.apple.WebKit 0x0000000110cc35bc void IPC::handleMessage<Messages::DrawingArea::AcceleratedAnimationDidStart, WebKit::DrawingArea, void (WebKit::DrawingArea::*)(unsigned long long, WTF::String const&, double)>(IPC::MessageDecoder&, WebKit::DrawingArea*, void (WebKit::DrawingArea::*)(unsigned long long, WTF::String const&, double)) + 88
2 com.apple.WebKit 0x0000000110ce0dd9 IPC::MessageReceiverMap::dispatchMessage(IPC::Connection&, IPC::MessageDecoder&) + 113
3 com.apple.WebKit 0x0000000110e4bdde WebKit::WebProcess::didReceiveMessage(IPC::Connection&, IPC::MessageDecoder&) + 28
4 com.apple.WebKit 0x0000000110ca18a5 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::MessageDecoder, std::__1::default_delete<IPC::MessageDecoder> >) + 127
5 com.apple.WebKit 0x0000000110ca3f3e IPC::Connection::dispatchOneMessage() + 126
6 JavaScriptCore 0x0000000113c46fa5 WTF::RunLoop::performWork() + 437
7 JavaScriptCore 0x0000000113c47352 WTF::RunLoop::performWork(void*) + 34
8 com.apple.CoreFoundation 0x000000010e3ad0a1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
9 com.apple.CoreFoundation 0x000000010e3a2fcc __CFRunLoopDoSources0 + 556
10 com.apple.CoreFoundation 0x000000010e3a2483 __CFRunLoopRun + 867
11 com.apple.CoreFoundation 0x000000010e3a1e98 CFRunLoopRunSpecific + 488
12 com.apple.Foundation 0x000000010da3d891 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 267
13 com.apple.Foundation 0x000000010dad0221 -[NSRunLoop(NSRunLoop) run] + 74
14 libxpc.dylib 0x000000010f8b1534 _xpc_objc_main + 400
15 libxpc.dylib 0x000000010f8b38ee xpc_main + 189
16 com.apple.WebKit.WebContent.Development 0x000000010d96d432 main + 375
17 libdyld.dylib 0x000000010f5d992d start + 1
]]
<<a href="https://build.webkit.org/results/Apple%20iOS%209%20Simulator%20Release%20WK2%20(Tests)/r190705%20(180)/compositing/reflections/nested-reflection-crash-log.txt">https://build.webkit.org/results/Apple%20iOS%209%20Simulator%20Release%20WK2%20(Tests)/r190705%20(180)/compositing/reflections/nested-reflection-crash-log.txt</a>></pre>
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