Monday, January 7th, 2008

Mike Strosaker points out a sample real world use of SystemTAP


I noticed an interesting blog post from IBMer, Mike Strosaker over on his blog Zombie Process regarding SystemTAP. Check out his post for all the details…

http://zombieprocess.wordpress.com/2008/01/03/sample-real-world-use-of-systemtap/

SystemTap has been sometimes plagued with “solution in search of a problem” complaints. It was interesting to run across an example of SystemTap being used to solve a real-world problem. A developer discovered an OOM (Out Of Memory) condition in the upstream kernel. In the quest to obtain additional information regarding the issue, the kernel refused to boot with additional debug printk()’s added to quicklist.c. The developer, being familiar with SystemTap, used the following script:

Posted by md on January 7th, 2008 | Filed in Linux, SystemTAP, Technology | Comment now »



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