<p></p>
<p dir="auto">Hi,</p>
<p dir="auto">ArmV8 crashes when you do the following:</p>
<ol dir="auto">
<li>Start Squeak.</li>
<li>Open a MVC Project</li>
<li>in the MVC project open a Workspace</li>
<li>Type something, and then enough returns to cause the something to scroll of the screen and the scroll bar to flop out.</li>
<li>Scroll back --> segfault.</li>
</ol>
<p dir="auto">The patch that fixes this is attached.  The patch is to take the slow path in fastPathBottomToTop in platforms/Cross/plugins/BitBltPlugin/BitBltGeneric.c</p>
<p dir="auto">This only shows up when you use the optimized flag.</p>
<p dir="auto">Crashes on:</p>
<p dir="auto">gcc version 10.2.1 20210110 (Debian 10.2.1-6)<br>
gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)</p>
<p dir="auto">cheers</p>
<p dir="auto">bruce<br>
<a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/files/8172065/PatchBitBltGeneric.patch.txt">PatchBitBltGeneric.patch.txt</a></p>

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