<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Hello,</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>Denis Kodrantenko has posted some very interesting data on the OpenSFS wiki on Defect Escapes - the bugs that are being reported and fixed after a release is cut. We are hoping this is the start of a fun conversation on how we can classify and track errors better, and perhaps arrive at some ideas of how to reduce the number of escapes in the future.</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>Also of particular interest is a table that shows the defect density for Lustre 2.1 as compared to the code coverage. It doesn't seem there is a clear coverage relationship to the end defect density - perhaps we need better measures or it starts to indicate some of the historic quality issues couldn't be found just through more complete, in a strictly code coverage manner, testing.</div><div><br></div><div>The page is here: <a href="http://www.opensfs.org/foswiki/bin/view/Lustre/DefectsEscape">http://www.opensfs.org/foswiki/bin/view/Lustre/DefectsEscape</a></div><div><br></div><div>Cheers,</div><div>Nic</div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; "><div><font face="Arial" color="#000000" size="2" style="color: rgb(0, 0, 0); font-size: small; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><strong>Nicholas Henke</strong></font><span style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-family: Times; font-size: medium; "> • </span><span style="color: rgb(0, 0, 0); font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><font color="#808080" face="Arial"><b>Senior Filesystem Developer</b></font></span></div><div><font face="Arial" color="#004b83" size="2" style="font-size: small; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><strong>Xyratex</strong></font><br style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; 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