
Nov. 28, 2008
9:16 p.m.
Hi guys I don't know how usefull is it but there is a bug in cache_as_ram.inc and cache_as_ram_post.c for the 6fx intel processors. The code disable / enable the prefetcher in IA32_MISC_ENABLES MSR register. cache_as_ram.inc : /* Disable prefetchers */ movl $0x01a0, %eax rdmsr orl $((1 << 9) | (1 << 19)), %eax orl $((1 << 5) | (1 << 7)), %edx wrmsr should be movl $0x01a0, %ecx Same thing in cache_as_ram_post.c /* Enable prefetchers */ "movl $0x01a0, %eax\n" "rdmsr\n" "andl $~((1 << 9) | (1 << 19)), %eax\n" "andl $~((1 << 5) | (1 << 7)), %edx\n" "wrmsr\n" should be "movl $0x01a0, %ecx\n" Regards, Thomas