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<p>Hi Robert,</p>
<p><br>
</p>
<p>without knowing details about your error, can you eliminate the infinite loop by applying any of the proposed solutions from <a href="http://forum.world.st/I-broke-the-debugger-td5110752.html#a5110814" class="OWAAutoLink" id="LPlnk912340" previewremoved="true">http://forum.world.st/I-broke-the-debugger-td5110752.html#a5110814</a>?</p>
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I broke the debugger?. Weird thing her. I was trying out my old Plumbing example, mostly just as a way to improve the swiki page. Using a 19292 update 5.3 image on Mac. Found a recursion related bug in...</div>
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<div class="_rp_T4" id="Item.MessagePartBody">Best,
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<div class="_rp_T4" id="Item.MessagePartBody">Christoph</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>Von:</b> Squeak-dev <squeak-dev-bounces@lists.squeakfoundation.org> im Auftrag von Robert Withers via Squeak-dev <squeak-dev@lists.squeakfoundation.org><br>
<b>Gesendet:</b> Samstag, 25. Juli 2020 14:22:47<br>
<b>An:</b> Squeak-dev<br>
<b>Betreff:</b> Re: [squeak-dev] error on process termination</font>
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<p>To give you more context, I am looking into gaurding the Vat's eventualProcess to restart when curtailed. This method is the main processing event loop. Below that is the #restartEventLoop method.</p>
<blockquote>
<p>PriorityVat>>#processSends<br>
<br>
[<br>
[Processor yield.<br>
self nextPriorityMsg ifNotNil: [:msg | msg value].<br>
normalQ notNil ] ifCurtailed: [self restartEventLoop]] whileTrue<br>
<br>
PriorityVat>>#restartEventLoop<br>
<br>
| currentEventLoop |<br>
(Processor activeProcess == eventualProcess) ifTrue: [<br>
eventualProcess ifNotNil: [:ea | currentEventLoop := ea].<br>
eventualProcess := nil.<br>
eventualProcess := EventualProcess newOnVat: self.<br>
eventualProcess resumeAsProcess.<br>
currentEventLoop ifNotNil: [:ea | ea terminate ]].</p>
</blockquote>
<p>The termination is where the #stepToCallee error occurs.</p>
<p>K, r<br>
</p>
<div class="moz-cite-prefix">On 7/25/20 8:13 AM, Robert Withers wrote:<br>
</div>
<blockquote type="cite" cite="mid:a7a1a628-8d90-39f1-bd66-b387bed1e59b@pm.me">
<p>Hi y'all,</p>
<p>I am getting an error when terminating my process and it loops infinitely stacking this error recursively.</p>
<blockquote>
<p>nil doesNotUnderstand: stepToCallee<br>
</p>
</blockquote>
<p>This is called from Context>>#runUntilErrorOrReturnFrom: aSender after this method has tried to get the topContext. Somehow topContext is nil, and I am guessing that returns from one of the context pops, in the following code from #runUntilErrorOrReturnFrom:. </p>
<blockquote>
<p> "Control resumes here once above ensure block or exception handler is executed"<br>
^ error ifNil: [<br>
"No error was raised, remove ensure context by stepping until popped"<br>
[ctxt isDead] whileFalse: [topContext := topContext stepToCallee].<br>
{topContext. nil}<br>
<br>
</p>
</blockquote>
<p>Have I setup the process incorrectly to receive this error or is something else the issue?<br>
</p>
<p>Appreciated.</p>
<p>Kindly,<br>
rabbit<br>
</p>
</blockquote>
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