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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 - [GTK] Crash in WebKit::CompositingCoordinator::setViewOverlayRootLayer"
href="https://bugs.webkit.org/show_bug.cgi?id=169184">169184</a>
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<tr>
<th>Summary</th>
<td>[GTK] Crash in WebKit::CompositingCoordinator::setViewOverlayRootLayer
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Nightly Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</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>Web Inspector
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mcatanzaro@igalia.com
</td>
</tr>
<tr>
<th>CC</th>
<td>inspector-bugzilla-changes@group.apple.com
</td>
</tr></table>
<p>
<div>
<pre>Web inspector crash in WebKit::CompositingCoordinator::setViewOverlayRootLayer. Truncated backtrace:
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007fdcbe388352 in std::__atomic_base<int>::operator-- (this=0x7fdcc03a5878 <vtable for WTF::Function<void ()>::CallableWrapper<IPC::Connection::sendMessage(std::unique_ptr<IPC::Encoder, std::default_delete<IPC::Encoder> >, WTF::OptionSet<IPC::SendOption>)::{lambda()#1}>+24>) at /usr/include/c++/6.3.1/bits/atomic_base.h:304
304 { return __atomic_sub_fetch(&_M_i, 1, memory_order_seq_cst); }
[Current thread is 1 (Thread 0x7fdcc06c6ac0 (LWP 17265))]
Thread 1 (Thread 0x7fdcc06c6ac0 (LWP 17265)):
#0 0x00007fdcbe388352 in std::__atomic_base<int>::operator--() (this=0x7fdcc03a5878 <vtable for WTF::Function<void ()>::CallableWrapper<IPC::Connection::sendMessage(std::unique_ptr<IPC::Encoder, std::default_delete<IPC::Encoder> >, WTF::OptionSet<IPC::SendOption>)::{lambda()#1}>+24>) at /usr/include/c++/6.3.1/bits/atomic_base.h:304
#1 0x00007fdcbe388352 in WTF::ThreadSafeRefCountedBase::derefBase() (this=0x7fdcc03a5878 <vtable for WTF::Function<void ()>::CallableWrapper<IPC::Connection::sendMessage(std::unique_ptr<IPC::Encoder, std::default_delete<IPC::Encoder> >, WTF::OptionSet<IPC::SendOption>)::{lambda()#1}>+24>) at /usr/src/debug/webkitgtk-2.14.5/Source/WTF/wtf/ThreadSafeRefCounted.h:63
#2 0x00007fdcbe388352 in WTF::ThreadSafeRefCounted<IPC::Connection::WorkQueueMessageReceiver>::deref() (this=0x7fdcc03a5878 <vtable for WTF::Function<void ()>::CallableWrapper<IPC::Connection::sendMessage(std::unique_ptr<IPC::Encoder, std::default_delete<IPC::Encoder> >, WTF::OptionSet<IPC::SendOption>)::{lambda()#1}>+24>) at /usr/src/debug/webkitgtk-2.14.5/Source/WTF/wtf/ThreadSafeRefCounted.h:78
#3 0x00007fdcbe388352 in WTF::derefIfNotNull<IPC::Connection::WorkQueueMessageReceiver>(IPC::Connection::WorkQueueMessageReceiver*) (ptr=<optimized out>) at /usr/src/debug/webkitgtk-2.14.5/Source/WTF/wtf/PassRefPtr.h:40
#4 0x00007fdcbe388352 in WTF::RefPtr<IPC::Connection::WorkQueueMessageReceiver>::~RefPtr() (this=0x7fdc2d9e1810, __in_chrg=<optimized out>) at /usr/src/debug/webkitgtk-2.14.5/Source/WTF/wtf/RefPtr.h:62
#5 0x00007fdcbe388352 in IPC::Connection::<lambda()>::~<lambda> (this=0x7fdc2d9e1808, __in_chrg=<optimized out>) at /usr/src/debug/webkitgtk-2.14.5/Source/WebKit2/Platform/IPC/Connection.cpp:609
#6 0x00007fdcbe388352 in WTF::Function<void()>::CallableWrapper<IPC::Connection::processIncomingMessage(std::unique_ptr<IPC::Decoder>)::<lambda()> >::~CallableWrapper (this=0x7fdc2d9e1800, __in_chrg=<optimized out>) at /usr/src/debug/webkitgtk-2.14.5/Source/WTF/wtf/Function.h:91
#7 0x00007fdcbe388352 in WTF::Function<void()>::CallableWrapper<IPC::Connection::processIncomingMessage(std::unique_ptr<IPC::Decoder>)::<lambda()> >::~CallableWrapper(void) (this=0x7fdc2d9e1800, __in_chrg=<optimized out>) at /usr/src/debug/webkitgtk-2.14.5/Source/WTF/wtf/Function.h:91
#8 0x00007fdcbe656000 in WebKit::CompositingCoordinator::setViewOverlayRootLayer(WebCore::GraphicsLayer*) (this=0x7fdc53596878, graphicsLayer=0x7fdc4120f800) at /usr/src/debug/webkitgtk-2.14.5/Source/WebKit2/WebProcess/WebPage/CoordinatedGraphics/CompositingCoordinator.cpp:88
#9 0x00007fdcbf11d493 in WebCore::RenderLayerCompositor::attachRootLayer(WebCore::RenderLayerCompositor::RootLayerAttachment) (this=this@entry=0x7fdca9f8b720, attachment=attachment@entry=WebCore::RenderLayerCompositor::RootLayerAttachedViaChromeClient) at /usr/src/debug/webkitgtk-2.14.5/Source/WebCore/rendering/RenderLayerCompositor.cpp:3545
#10 0x00007fdcbf11f916 in WebCore::RenderLayerCompositor::ensureRootLayer() (this=this@entry=0x7fdca9f8b720) at /usr/src/debug/webkitgtk-2.14.5/Source/WebCore/rendering/RenderLayerCompositor.cpp:3475
expectedAttachment = WebCore::RenderLayerCompositor::RootLayerAttachedViaChromeClient
See the downstream bug for the full backtrace.</pre>
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