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The Enterprise End User Summit is an exclusive invitation-only event that brings together high performance end users with the highest level Linux community developers. CTOs, architects, senior IT representatives and kernel developers are able to connect directly to advance the features most critical to using Linux in the enterprise.

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Wednesday, May 15 • 2:00pm - 3:00pm
Kdump on the Mainframe - Michael Holzheu, IBM

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The Linux kernel code is robust, but even the best kernel hackers are only human and make mistakes. So, while kernel crashes are rare, they can occur and are unpleasant events. Because mainframes traditionally run mission critical workloads, there is a particular big focus on the serviceability of the platform. Therefore, when Linux was ported to s390 beginning of 2000, IBM also provided a reliable kernel dump mechanism. This was about five years before kdump was integrated into the upstream Linux kernel. In some areas, kdump offers advantages over the traditional s390 dump methods. Therefore, in 2011, kdump was ported to s390. The code was enriched by specific s390 features and, as much as possible, kdump was integrated into the existing s390 dump infrastructure. This presentation reviews the traditional s390 Linux kernel dump methods a describes the specifics of the s390 kdump port.

Speakers

Michael Holzheu

Software Developer, IBM
Michael Holzheu is a Linux kernel developer at the IBM lab in Boeblingen, Germany. He studied computer science at the University of Erlangen and has worked for IBM since 1998. After a start in the z/OS UNIX Systems Services environment, he joined the Linux for System z team in 2000. His main focus is kernel dump, dump analysis, and device driver development. He recently presented "kdump on the mainframe" on the Linux Con 2012.

Wednesday May 15, 2013 2:00pm - 3:00pm
Card Room

2 Attending

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