Configuring and Analyzing Kernel Crash Dumps

von Stefan Seyfried (B1 Systems GmbH)

Friday, 25.05.2012, London, 14:30-15:00 Uhr

Did you ever want to investigate that kernel crash on your server but had to reboot quickly to get the system online again? Did you ever encounter a kernel panic which did not get investigated because it left no traces in syslog? A crash dump would probably have helped you.

Kernel crash dumps are a possibility to investigate kernel problems, which can be used even by non-experts to collect all the available information about the problem. This allows a later investigation of the issue by providing the crash dump to your Linux distributor or to a Linux kernel expert. Often it makes it unnecessary to reproduce the problem since all the needed information is already contained in the crash dump.

Get to know the basic steps to configure a Linux system for capturing kernel crash dumps. Even if you are no kernel hacker, that last "dmesg" output of the system can help you locate the problem or even get it fixed by someone else.

Über den Autor Stefan Seyfried:

Stefan Seyfried is engaged full-time in different Linux areas since the beginning of the century. He started as a systems administrator at SUSE Linux GmbH in Nuremberg.

2004 he became a developer for mobile devices, hardware enablement and system integration. Thereby, he learnt to analyze and eliminate different problems - from boot loader to desktop. In 2009 he has been working as a developer for wireless technologies at Sphairon Access Systems and since 2010 he is supporting B1 Systems Gmbh as a consultant and developer. When he is not virtualizing server or finds solutions for tricky problems, he attends to miscellaneous embedded Linux systems in his part time.