core dump

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  • Getting help with scat

    Posted August 18, 2009 - 1:47 pm

    Since we looked at mdb last week and probed into a core dump, we should take a quick look at another tool for analyzing core dumps. The "scat" tool provides an easy way to extract an extensive amount of information from a core dump and provide it to you in a relatively readable fashion (as readable as data from a core dump is ever likely to be). Once you start the tool, you can get some help figuring out what commands to use.
  • Probing into Core Dumps with mdb

    Posted August 12, 2009 - 2:19 pm

    The Solaris Modular Debugger (mdb) is a debugger that was designed for low-level debugging -- examining the running kernel or looking into core files and using assembly language know how to figure out what was happening at the time of a system crash. Core dumps are similar in concept to the flight recorders on commercial airplanes. Because they contain the contents of memory at the time of the crash, you can ask just about question you might want to ask about that fatal system moment, but you have to be a very savvy systems geek to know what questions to ask and to understand the answers.
  • Unix Tip: Core dumps for dummies

    Posted February 23, 2007 - 1:20 pm

    If once every several years, you have problems with a process and end up with a troublesome core dump, you might be able to extract some useful information from the file before you delete it from your system. In this week's column, we look at an extremely simple script intended to help you analyze Solaris core dumps without requiring you to remember the relevant commands.
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