Comment 9 for bug 486300

Can you please test and report if this works?

memory_corruption_check_size=128K

in the boot options.

The default is

memory_corruption_check_size=64K

but it seems that's not enough for some systems.

Thanks

If you don't know how to set BootOptions read

https://help.ubuntu.com/community/BootOptions

Also this thread is very important to anyone looking at this bug

http://linux.derkeiler.com/Mailing-Lists/Kernel/2009-07/msg04621.html