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crash /boot/System.map-2.6.32.lustremaster vmlinux vmcore
--> vmlinux is located in ./BUILD/kernel-2.6.32.lustremaster/vmlinux
--> /var/crash/*/vmcore

Collecting bits

1. download and install kernel debuginfo and debuginfo-common rpms. 
   1. If you know the gerrit review you're looking at then you can follow the links to get to the necessary rpms. The server builds have the kernel-debuginfo and kernel-debuginfo-common rpms
   2. for client which use the stock kernel, you'll need to get that off centos debuginfo site
      1. EX: centos 7: http://debuginfo.centos.org/7/x86_64/
2. download and install the lustre-debuginfo for the appropriate build
   1. Again for a gerrit review you can get to it through the build artifacts link on build.hpdd.intel.com
3. Instead of installation you can extract the rpms in your local debug directory
   1. rpm2cpio <rpm> | cpio -idmv

Using Crash

It helps to have the debug info for the modules. This will allow crash to display source code line numbers as well as enable it to know the Lustre/LNet structures, which can then be printed.

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mod -S /usr/lib/debug/usr/lib/modules/
# if the modules are in the default location then you only need to do "mod -S", other wise the path needs to be specified.

Once modules are loaded you cand perform the following commands

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