mcelog 0.8~pre-5 (amd64 binary) in ubuntu intrepid

 Starting with version 2.6.4, the Linux kernel for x86-64 no longer decodes
 and logs recoverable Machine Check Exception events to the kernel log on
 its own.
 .
 Instead, the MCE data is kept in a buffer which can be read from userpace via
 the /dev/mcelog device node.
 .
 You need this tool to collect and decode those events; it will log the decoded
 MCE events into /var/log/mcelog. Currently, mcelog can decode MCE from AMD K8
 and Intel P4 (including Xeon) processors.