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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Bmalloc: Crash on 32-bit Linux at bmalloc::Heap::allocateLarge() -> bmalloc::VMHeap::grow() ."
href="https://bugs.webkit.org/show_bug.cgi?id=146598">146598</a>
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<th>Summary</th>
<td>Bmalloc: Crash on 32-bit Linux at bmalloc::Heap::allocateLarge() -> bmalloc::VMHeap::grow() .
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>528+ (Nightly build)
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<th>Hardware</th>
<td>Unspecified
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>New Bugs
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>clopez@igalia.com
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<th>CC</th>
<td>cgarcia@igalia.com, ggaren@apple.com, mario@webkit.org
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<pre>Steps to reproduce the crash:
1. Build WebKitGTK+ on 32-bit Linux (I tested this with i686 and ARM builds, both are affected).
2. Open a Web page that tries to allocate a fairly amount of ram.
# For example use the test case of <a class="bz_bug_link
bz_status_NEW "
title="NEW - Decoding of animated PNG (APNG) is not optimized for memory usage."
href="show_bug.cgi?id=146205">bug 146205</a> that allocates near 3GB (with the GTK port at least)
$ WebKitBuild/Release/bin/MiniBrowser <a href="http://people.igalia.com/clopez/apngmem/withapng.html">http://people.igalia.com/clopez/apngmem/withapng.html</a>
Result: The WebProcess crashes.
3. Now repeat the same but disabling bmalloc at runtime (by setting the env var Malloc=1)
$ Malloc=1 WebKitBuild/Release/bin/MiniBrowser <a href="http://people.igalia.com/clopez/apngmem/withapng.html">http://people.igalia.com/clopez/apngmem/withapng.html</a>
Now it don't crashes.
This is a different than <a class="bz_bug_link
bz_status_NEW "
title="NEW - Crash on xLarge memory allocation using bmalloc on 32bit systems"
href="show_bug.cgi?id=146440">bug 146440</a> because I tried the workaround of disabling the GCC tree-sra optimization but it didn't helped.</pre>
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