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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi, Eric<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Could you tell me where I could find XFS-QA test cases? <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks & Regards.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Lv Wentao.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> crow al
[mailto:al-john@hotmail.com] <br>
<b>Sent:</b> Wednesday, July 15, 2009 3:51 PM<br>
<b>To:</b> Wentao Lv (wentalv)<br>
<b>Subject:</b> FW: How to simulate journal corruption<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
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<br>
> Date: Mon, 13 Jul 2009 09:44:03 -0500<br>
> From: sandeen@sandeen.net<br>
> To: al-john@hotmail.com<br>
> CC: xfs@oss.sgi.com<br>
> Subject: Re: How to simulate journal corruption<br>
> <br>
> crow al wrote:<br>
> > Hi, there<br>
> > <br>
> > I'm a QA engineer from Cisco. I'm working on a test case concerning
XFS<br>
> > journal playback failure, which needs to manually inject error to
XFS.<br>
> > <br>
> > I did some google work but get no luck. Then I think maybe XFA-QA
could<br>
> > give me some advice. That why I come to here.<br>
> > <br>
> > Is there anyone could tell me how to inject error into XFS or is
there<br>
> > any tool could be used?<br>
> > <br>
> > Wish for your response.<br>
> > <br>
> > Thanks & Regards.<br>
> > Lv Wentao.<br>
> <br>
> test 044 in xfstests runs something called "loggen" which will
generate<br>
> log traffic to be replayed on mount, if I'm reading it right. Of course<br>
> that's an uncorrupted log ...<br>
> <br>
> There is another tool called "fsfuzzer" which writes random junk
over a<br>
> filesystem. You could probably combine the two tools to create valid<br>
> logs to replay, and then write varying degrees of junk on top with<br>
> fsfuzzer, and try to replay the result.<br>
> <br>
> You could probably even use fsfuzzer "stock" and just restrict
the<br>
> fuzzing to the log portion of the filesystem.<br>
> <br>
> I'm not sure what kinds of errors you are trying to catch - oopses,<br>
> hangs, improperly replaying a corrupted log, etc - but it sounds well<br>
> worth doing. FWIW when I used fsfuzzer, it often ran into problems in<br>
> the log, so I imagine you'll uncover some interesting things; if you do,<br>
> please share. :)<br>
> <br>
> -Eric<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>What
can you do with the new Windows Live? <a
href="http://www.microsoft.com/windows/windowslive/default.aspx" target="_new">Find
out</a><o:p></o:p></span></p>
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