Just to add some links for those (I assume these are the ones you mean):<p>Dumping the debug-level log ring-buffer on exception:<p><a href="http:&#x2F;&#x2F;lists.xenproject.org&#x2F;archives&#x2F;html&#x2F;mirageos-devel&#x2F;2016-01&#x2F;msg00027.html" rel="nofollow">http:&#x2F;&#x2F;lists.xenproject.org&#x2F;archives&#x2F;html&#x2F;mirageos-devel&#x2F;201...</a><p>Detailed profiling (interactive JavaScript viewer for thread interactions):<p><a href="https:&#x2F;&#x2F;mirage.io&#x2F;wiki&#x2F;profiling" rel="nofollow">https:&#x2F;&#x2F;mirage.io&#x2F;wiki&#x2F;profiling</a>