Chapter 4 - DSpace at Waseda University
Chapter 4 - DSpace at Waseda University
Chapter 4 - DSpace at Waseda University
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� The exact time the problem occurred<br />
� Dynamic oper<strong>at</strong>ing system inform<strong>at</strong>ion<br />
� Wh<strong>at</strong> we were doing when the problem occurred<br />
� A problem description<br />
� Anything th<strong>at</strong> may have triggered the problem<br />
� Technical investig<strong>at</strong>ion (Symptom and Cause)<br />
17<br />
<strong>Chapter</strong> 2<br />
Symptom in the technical investig<strong>at</strong>ion (Symptom and Cause) is external evidence of<br />
problem. These symptoms are classified under five c<strong>at</strong>egories as follows [16].<br />
� Error<br />
� Crash<br />
� Hang (or very slow performance)<br />
� Performance problem<br />
� Unexpected behavior/output<br />
It is easy solve the problems after collecting inform<strong>at</strong>ion of above problems and classifying<br />
the problems.<br />
2.7 Linux Timer<br />
Linux Kernel Timer has two main works.
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