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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 - SIGBUS in IPC::ArgumentDecoder::ArgumentDecoder"
href="https://bugs.webkit.org/show_bug.cgi?id=149661">149661</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>SIGBUS in IPC::ArgumentDecoder::ArgumentDecoder
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>Other
</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>WebKit Gtk
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mcatanzaro@igalia.com
</td>
</tr></table>
<p>
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<pre>This is a bit of an interesting crash, in that it was a SIGBUS and not a SIGSEGV or SIGABRT like usual. Full backtrace, memmaps, etc. are available in the downstream bug.
Truncated backtrace:
Thread no. 1 (10 frames)
#0 __memcpy_sse2_unaligned at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:36
#1 IPC::ArgumentDecoder::ArgumentDecoder at /usr/src/debug/webkitgtk-2.10.0/Source/WebKit2/Platform/IPC/ArgumentDecoder.cpp:41
#2 IPC::MessageDecoder::MessageDecoder at /usr/src/debug/webkitgtk-2.10.0/Source/WebKit2/Platform/IPC/MessageDecoder.cpp:49
#3 std::make_unique<IPC::MessageDecoder, IPC::DataReference, WTF::Vector<IPC::Attachment, 0ul, WTF::CrashOnOverflow, 16ul> >(IPC::DataReference&&, WTF::Vector<IPC::Attachment, 0ul, WTF::CrashOnOverflow, 16ul>&&) at /usr/src/debug/webkitgtk-2.10.0/Source/WTF/wtf/StdLibExtras.h:327
#4 IPC::Connection::processMessage at /usr/src/debug/webkitgtk-2.10.0/Source/WebKit2/Platform/IPC/unix/ConnectionUnix.cpp:246
#5 IPC::Connection::readyReadHandler at /usr/src/debug/webkitgtk-2.10.0/Source/WebKit2/Platform/IPC/unix/ConnectionUnix.cpp:356
#6 std::function<void ()>::operator()() const at /usr/include/c++/5.1.1/functional:2271
#7 WTF::WorkQueue::<lambda(GIOCondition)>::operator() at /usr/src/debug/webkitgtk-2.10.0/Source/WTF/wtf/glib/WorkQueueGLib.cpp:98
#8 std::_Function_handler<bool(GIOCondition), WTF::WorkQueue::registerSocketEventHandler(int, std::function<void()>, std::function<void()>)::<lambda(GIOCondition)> >::_M_invoke(const std::_Any_data &, <unknown type in /usr/lib/debug/usr/lib64/libjavascriptcoregtk-4.0.so.18.2.8.debug, CU 0xf107ac8, DIE 0xf10a682>) at /usr/include/c++/5.1.1/functional:1857
#9 std::function<bool (GIOCondition)>::operator()(GIOCondition) const at /usr/include/c++/5.1.1/functional:2271</pre>
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