Comment 0 for bug 1200533

Updated AMD-ucode has has just landed on kernel.org
Please update amd-ucode in linux-firmware

https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/commit/?id=31f6b3076bab3c4b65f67fdb232f4579ed828b4f

Files:
amd-ucode/microcode_amd.bin
amd-ucode/microcode_amd_fam15h.bin

The ucode used to be available here: http://www.amd64.org/support/microcode.html before the site went down last year.

This AMD ucode fixes some severe lockup issues on AMD family 15h CPUs when under high load.
The fix for erratum #759 being the most severe.

Example thread discussing the lockup issues of #759: http://communities.vmware.com/thread/432033?start=30&tstart=0
HP has already updated BIOS updated microcode: http://www.dell.com/support/drivers/au/en/19/DriverDetails?driverId=HPP5C