<div dir="ltr">ASAN_OPTIONS=symbolize=false<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Nov 15, 2013 at 1:14 AM, Nick Kledzik <span dir="ltr"><<a href="mailto:kledzik@apple.com" target="_blank">kledzik@apple.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><br><div><div class="im"><div>On Nov 14, 2013, at 9:07 AM, Rick Foos <<a href="mailto:rfoos@codeaurora.org" target="_blank">rfoos@codeaurora.org</a>> wrote:</div>
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<div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Status: System in swap overnight. Stopped both buildmaster and slave. 187 llvm-symbolizer tasks were still running. Tasks did not stop after<u></u><u></u></span></div>
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<span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Retried this morning, no other workload, 8 llvm-symbolizer tasks consuming 100% on each cpu</span></div></div></div></blockquote><div><br></div>
</div><div>Doesn’t that mean that Asan found some problems, but is stuck trying to symbolicate the backtraces? Is there a way to run Asan and *not* symbolicate? </div><div><br></div><div>This also seems like a bug (infinite loop?) in llvm-symbolizer. </div>
<span class="HOEnZb"><font color="#888888"><div><br></div><div>-Nick</div></font></span><div><div class="h5"><div><br></div><br><blockquote type="cite"><div bgcolor="white" lang="EN-US" link="blue" vlink="purple" style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
<div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">. 7 zombie tasks.<u></u><u></u></span></div>
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<span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">So not quite ready this morning. If anyone knows of an llvm-sanitizer issue like this it would help.<u></u><u></u></span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"> </span></div><div><div style="border-style:solid none none;border-top-color:rgb(181,196,223);border-top-width:1pt;padding:3pt 0in 0in"><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<b><span style="font-size:10pt;font-family:Tahoma,sans-serif;color:windowtext">From:</span></b><span style="font-size:10pt;font-family:Tahoma,sans-serif;color:windowtext"><span> </span><a href="mailto:llvm-commits-bounces@cs.uiuc.edu" style="color:purple;text-decoration:underline" target="_blank">llvm-commits-bounces@cs.uiuc.edu</a><span> </span>[<a href="mailto:llvm-commits-bounces@cs.uiuc.edu" style="color:purple;text-decoration:underline" target="_blank">mailto:llvm-commits-bounces@cs.uiuc.edu</a>]<span> </span><b>On Behalf Of<span> </span></b>Rick Foos<br>
<b>Sent:</b><span> </span>Wednesday, November 13, 2013 1:42 PM<br><b>To:</b><span> </span>Sergey Matveev; Shankar Easwaran<br><b>Cc:</b><span> </span><a href="mailto:llvm-commits@cs.uiuc.edu" style="color:purple;text-decoration:underline" target="_blank">llvm-commits@cs.uiuc.edu</a>; Galina Kistanova<br>
<b>Subject:</b><span> </span>Re: [lld] r194545 - [PECOFF] Fix use-after-return.<u></u><u></u></span></div></div></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div>
<div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">Sorry for the delay,<span> </span><br><br>Our problem with running the sanitizers is that the load average running under Ninja reached 146 and a short time after a system crash requiring calling someone to power cycle the box...<br>
<br>The address sanitizer by itself leaves a load average 40. This means the OS over 100% utilization, and is thrashing a bit. Load Average doesn't say what exactly is thrashing.<br><br>Ninja supports make's -j, and -l options. The -l maximum load average, is the key.<span> </span><br>
<br>The load average should be less than the total number of cores (hyperthreads too) before Ninja launches another task.<span> </span><br><br>A Load Average at or lower than 100% technically should benefit performance, and maximize throughput. However, I will be happy if I don't have to call someone to power cycle the server :)<br>
<br>So the maximum load average of a 16 core machine with hyperthreads is 32 (keeping it simple). This needs to be passed to all make's and Ninja build steps on that slave to maximize throughput.<br><br>For now, I'm looking at a minimal patch to include jobs and a new loadaverage variable for the sanitizers.<span> </span><br>
<br>Longer term, all buildslaves should define maximum loadaverage, and all make/ninja steps should pass -j, and -l options.<br><br>Best Regards,<br>Rick<br><br>On 11/13/2013 11:21 AM, Sergey Matveev wrote:<u></u><u></u></div>
</div><blockquote style="margin-top:5pt;margin-bottom:5pt"><div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">+kcc<u></u><u></u></div></div><div><p class="MsoNormal" style="margin:0in 0in 12pt;font-size:12pt;font-family:'Times New Roman',serif">
<u></u> <u></u></p><div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">On Wed, Nov 13, 2013 at 6:41 AM, Shankar Easwaran <<a href="mailto:shankare@codeaurora.org" style="color:purple;text-decoration:underline" target="_blank">shankare@codeaurora.org</a>> wrote:<u></u><u></u></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">Sorry for another indirection. Rick foos is working on it. I think there is some good news here :)<br><br>Cced Rick + adding Galina,Dmitri.<br>
<br>Thanks<br><br>Shankar Easwaran<u></u><u></u></div><div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><br><br>On 11/12/2013 8:37 PM, Rui Ueyama wrote:<u></u><u></u></div>
<p class="MsoNormal" style="margin:0in 0in 12pt;font-size:12pt;font-family:'Times New Roman',serif">Shankar tried to set it up recently.<br><br><br>On Tue, Nov 12, 2013 at 6:31 PM, Sean Silva <<a href="mailto:silvas@purdue.edu" style="color:purple;text-decoration:underline" target="_blank">silvas@purdue.edu</a>> wrote:<u></u><u></u></p>
<p class="MsoNormal" style="margin:0in 0in 12pt;font-size:12pt;font-family:'Times New Roman',serif">Sanitizers?<br><br>There have been a couple of these sorts of bugs recently... we really<br>ought to have some sanitizer bots...<br>
<br>-- Sean Silva<br><br><br>On Tue, Nov 12, 2013 at 9:21 PM, Rui Ueyama <<a href="mailto:ruiu@google.com" style="color:purple;text-decoration:underline" target="_blank">ruiu@google.com</a>> wrote:<u></u><u></u></p>
<p class="MsoNormal" style="margin:0in 0in 12pt;font-size:12pt;font-family:'Times New Roman',serif">Author: ruiu<br>Date: Tue Nov 12 20:21:51 2013<br>New Revision: 194545<br><br>URL:<span> </span><a href="http://llvm.org/viewvc/llvm-project?rev=194545&view=rev" style="color:purple;text-decoration:underline" target="_blank">http://llvm.org/viewvc/llvm-project?rev=194545&view=rev</a><br>
Log:<br>[PECOFF] Fix use-after-return.<br><br>Modified:<br> lld/trunk/lib/Driver/WinLinkDriver.cpp<br><br>Modified: lld/trunk/lib/Driver/WinLinkDriver.cpp<br>URL:<br><a href="http://llvm.org/viewvc/llvm-project/lld/trunk/lib/Driver/WinLinkDriver.cpp?rev=194545&r1=194544&r2=194545&view=diff" style="color:purple;text-decoration:underline" target="_blank">http://llvm.org/viewvc/llvm-project/lld/trunk/lib/Driver/WinLinkDriver.cpp?rev=194545&r1=194544&r2=194545&view=diff</a><br>
<br>==============================================================================<br>--- lld/trunk/lib/Driver/WinLinkDriver.cpp (original)<br>+++ lld/trunk/lib/Driver/WinLinkDriver.cpp Tue Nov 12 20:21:51 2013<br>@@ -842,7 +842,7 @@ WinLinkDriver::parse(int argc, const cha<br>
<br> case OPT_INPUT:<br> inputElements.push_back(std::unique_ptr<InputElement>(<br>- new PECOFFFileNode(ctx, inputArg->getValue())));<br>+ new PECOFFFileNode(ctx,<br>ctx.allocateString(inputArg->getValue()))));<br>
break;<br><br> #define DEFINE_BOOLEAN_FLAG(name, setter) \<br>@@ -892,9 +892,11 @@ WinLinkDriver::parse(int argc, const cha<br> // start with a hypen or a slash. This is not compatible with link.exe<br> // but useful for us to test lld on Unix.<br>
if (llvm::opt::Arg *dashdash = parsedArgs->getLastArg(OPT_DASH_DASH)) {<br>- for (const StringRef value : dashdash->getValues())<br>- inputElements.push_back(<br>- std::unique_ptr<InputElement>(new PECOFFFileNode(ctx, value)));<br>
+ for (const StringRef value : dashdash->getValues()) {<br>+ std::unique_ptr<InputElement> elem(<br>+ new PECOFFFileNode(ctx, ctx.allocateString(value)));<br>+ inputElements.push_back(std::move(elem));<br>
+ }<br> }<br><br> // Add the libraries specified by /defaultlib unless they are already<br>added<br><br><br>_______________________________________________<br>llvm-commits mailing list<br><a href="mailto:llvm-commits@cs.uiuc.edu" style="color:purple;text-decoration:underline" target="_blank">llvm-commits@cs.uiuc.edu</a><br>
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<u></u> <u></u></div><p class="MsoNormal" style="margin:0in 0in 12pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></p></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<span><span style="color:rgb(136,136,136)">--<span> </span></span></span><span style="color:rgb(136,136,136)"><br><span>Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by the Linux Foundation</span></span><u></u><u></u></div>
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<u></u> <u></u></div></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><br><br><br><u></u><u></u></div><pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:'Courier New'">
_______________________________________________<u></u><u></u></pre><pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:'Courier New'">llvm-commits mailing list<u></u><u></u></pre><pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:'Courier New'">
<a href="mailto:llvm-commits@cs.uiuc.edu" style="color:purple;text-decoration:underline" target="_blank">llvm-commits@cs.uiuc.edu</a><u></u><u></u></pre><pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:'Courier New'">
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<br><br><br><u></u><u></u></div><pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:'Courier New'">-- <u></u><u></u></pre><pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:'Courier New'">
Rick Foos<u></u><u></u></pre><pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:'Courier New'">Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation<u></u><u></u></pre>
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