Crash dump anaylsis
Here is how to analyze a kernel crash dump in CentOs
First, to install vmlinux with debugging symbols strings /var/crash/127.0.0.1-2013-06-22-18\:15\:01/vmcore | less Look for the kernel version. In this case: OSRELEASE=2.6.32-220.el6.x86_64 Go to http://debuginfo.centos.org/6/x86_64/ and download kernel-debuginfo-2.6.32-220.el6.x86_64.rpm and kernel-debuginfo-common-x86_64-2.6.32-220.el6.x86_64.rpm Install on target machine with rpm -ivh kernel-debuginfo-common-x86_64-2.6.32-220.el6.x86_64.rpm rpm -ivh kernel-debuginfo-2.6.32-220.el6.x86_64.rpm Finally, the crash dump analysis: crash /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux ./vmcore
Use the “bt” command to pull up a backtrace. It will tell you what program was running and what happened to cause the crash.