Quote Originally Posted by JumpingJack View Post
Are we looking at the right errata, 254 is a TLB errata, but I thought the patch in question dealt with 298, which has not been published yet.
Good point. AMD has posted the patch for errata 298 on the x86-64 mailing list here.
But looking at the source code the patch is a workaround for errata 254.
Can be it are two TLB related problems, whom can both be fixed just by disabling the TLB.