<div dir="ltr">Hi, Thijs:<div><br></div><div>For our paper, we installed 64bit Ubuntu 12.04 as Dom0, Xen version is 4.3 (on github).</div><div>For guest domain, we use Linux 3.0 with corresponding Litmus patch. It runs ok without problem.</div>
<div><br></div><div>A quick way to test is switch to Xen default credit scheduler, and see if the guest domain still crashes. If not, then it is RT-Xen's problem. Please attach the xl dmesg information in this case.</div>
<div><br></div><div>Also, I noticed you are using rtspin for the workload. As I remembered, rtspin would scale the workload. For example, if a VCPU with budget of 5 and period of 10, and you run a rtspin with wcet of 5 and period of 10. When you use xentop to see the actual workload, it is 5/10 * 5/10 = 0.25.</div>
<div>In our experiment, we use the base_task.c provided by litmus.</div><div><br></div><div>Hope this helps.</div><div><br></div><div>Thanks.</div><div><br></div><div>Sisu</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Mon, Apr 28, 2014 at 7:56 AM, Thijs Raets <span dir="ltr"><<a href="mailto:thijsraets@gmail.com" target="_blank">thijsraets@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi, <div><br></div><div>I'm running a virtual machine with 6 VCPU's with the following task set: </div><div><div>./rtspin 12 601 120 -w &</div><div>./rtspin 478 634 120 -w &</div><div>./rtspin 334 636 120 -w &</div>
<div>./rtspin 128 644 120 -w &</div><div>./rtspin 460 645 120 -w &</div><div>./rtspin 10 662 120 -w &</div><div>./rtspin 103 666 120 -w &</div><div>./rtspin 276 678 120 -w &</div><div>./rtspin 137 691 120 -w &</div>
</div><div><br></div><div>When I release this task set, my system crashes. I calculated the MPR interface and 6 VCPUs should be enough. Also /dev/litmus/log does not give me any usable information. I would like to test my virtual machine for real time behavior, so it's ok if deadlines are missed, a crash however is unacceptable. Can anyone help (how can I avoid this behavior or what could be the problem)?</div>
<div>Thanks in advance, </div><span class="HOEnZb"><font color="#888888"><div><br></div><div>Thijs </div></font></span></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><div><img src="https://dl.dropboxusercontent.com/u/268069/Sisu_Contact.jpeg" width="96" height="96"><br></div><div><br></div><div>Sisu Xi, PhD Candidate<br>
</div><br><a href="http://www.cse.wustl.edu/~xis/" target="_blank">http://www.cse.wustl.edu/~xis/</a><br>Department of Computer Science and Engineering<br>Campus Box 1045<br>Washington University in St. Louis<br>One Brookings Drive<br>
St. Louis, MO 63130</div>
</div>