<p dir="auto">Issue: <b>81559c42-419d-739b-a6b7-43927bc5d585<b><br><br><em>Versions</em> <br>- 0.10.1-release<br>-  <a class="commit-link" data-hovercard-type="commit" data-hovercard-url="https://github.com/microsoft/vscode/commit/94cba4eb314f52fd18b47b72459954fda65302d0/hovercard" href="https://github.com/microsoft/vscode/commit/94cba4eb314f52fd18b47b72459954fda65302d0"><tt>94cba4e</tt></a><br>-  <a class="commit-link" data-hovercard-type="commit" data-hovercard-url="https://github.com/microsoft/vscode/commit/a4bfcb890dc97f3e0801d8d824d0653e31ab3d44/hovercard" href="https://github.com/microsoft/vscode/commit/a4bfcb890dc97f3e0801d8d824d0653e31ab3d44"><tt>a4bfcb8</tt></a><br><em>Stack</em> <br>[/vs/workbench/parts/debug/node/rawDebugSession.ts#L68:28 (RawDebugSession.send)](<a href="https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/rawDebugSession.ts#L68:28">https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/rawDebugSession.ts#L68:28</a> %28RawDebugSession.send%29)<br>[vs/workbench/vs/base/common/winjs.base.raw.js#L1470:0 (onError)](<a href="https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/srcvs/workbench/vs/base/common/winjs.base.raw.js#L1470:0">https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/srcvs/workbench/vs/base/common/winjs.base.raw.js#L1470:0</a> %28onError%29)<br>[vs/workbench/vs/base/common/winjs.base.raw.js#L1176:0 (_notify)](<a href="https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/srcvs/workbench/vs/base/common/winjs.base.raw.js#L1176:0">https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/srcvs/workbench/vs/base/common/winjs.base.raw.js#L1176:0</a> %28_notify%29)<br>[vs/workbench/vs/base/common/winjs.base.raw.js#L1343:0 (enter)](<a href="https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/srcvs/workbench/vs/base/common/winjs.base.raw.js#L1343:0">https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/srcvs/workbench/vs/base/common/winjs.base.raw.js#L1343:0</a> %28enter%29)<br>[vs/workbench/vs/base/common/winjs.base.raw.js#L1316:0 (_run)](<a href="https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/srcvs/workbench/vs/base/common/winjs.base.raw.js#L1316:0">https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/srcvs/workbench/vs/base/common/winjs.base.raw.js#L1316:0</a> %28_run%29)<br>[/vs/workbench/parts/debug/node/v8Protocol.ts#L61:5 (V8Protocol.send)](<a href="https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/v8Protocol.ts#L61:5">https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/v8Protocol.ts#L61:5</a> %28V8Protocol.send%29)<br>[/vs/workbench/parts/debug/node/v8Protocol.ts#L127:4 (V8Protocol.dispatch)](<a href="https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/v8Protocol.ts#L127:4">https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/v8Protocol.ts#L127:4</a> %28V8Protocol.dispatch%29)<br>[/vs/workbench/parts/debug/node/v8Protocol.ts#L96:11 (V8Protocol.handleData)](<a href="https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/v8Protocol.ts#L96:11">https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/v8Protocol.ts#L96:11</a> %28V8Protocol.handleData%29)<br>[/vs/workbench/parts/debug/node/v8Protocol.ts#L51:8 (V8Protocol.connect)](<a href="https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/v8Protocol.ts#L51:8">https://github.com/microsoft/vscode/blob/df352367df2efcfa9d602d471e4e2f42140a0f05/src/vs/workbench/parts/debug/node/v8Protocol.ts#L51:8</a> %28V8Protocol.connect%29)<br>    at Socket. (out/vs/workbench/workbench.main.js:1593:24200)<br>    at emitOne (events.js:77:13)<br></b></b></p>
<p dir="auto">In a node express app I have the following loop:</p>
<p dir="auto">var msg = 'hello world';<br>
var i = 0;<br>
while (i &lt; 100) {<br>
msg = msg + i.toString();<br>
i++;<br>
}</p>
<p dir="auto">I set up the local and watch windows in the debugger so that I can see the msg variable in both.</p>
<p dir="auto">When stepping through the loop, if I press F10 very quickly, eventually the msg variable in the locals window will stop updating. See the screenshot below<br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/1704059/11182475/068041ca-8c63-11e5-9e27-842b4943cfbe.png"><img src="https://cloud.githubusercontent.com/assets/1704059/11182475/068041ca-8c63-11e5-9e27-842b4943cfbe.png" alt="snip_20151116130725" style="max-width: 100%;"></a></p>
<p dir="auto">When stepping through quickly, I sometimes see a message in the watch window that says 'Exception while processing request'</p>
<p dir="auto">This is on 0.10.0</p>