[PATCH] Athlon Machine Check fix

There seemed to be increase in Athlon users reporting MCEs in 2.6 that
they never saw in 2.4 and I didn't buy the "2.6 pushes hardware harder"
for a second given folks are running 2.4+preempt+O(1) etc patchkits
without problems.

So I did a mini-audit of the mcheck code.

How embarressing. Another fix that went into 2.4 that never made
it forward. Once I'm done with various Red Hat administrivia
I'll see if I can devote some time to going through the changesets
mailing list. I wonder just how many other really stupid bugs
like this got fixed and not brought forward.

arch/i386/kernel/cpu/mcheck/k7.c

@@ -81,7 +81,7 @@ void __init amd_mcheck_init(struct cpuinfo_x86 *c)
 		wrmsr (MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff);
 	nr_mce_banks = l & 0xff;
 
-	for (i=0; i<nr_mce_banks; i++) {
+	for (i=1; i<nr_mce_banks; i++) {
 		wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff);
 		wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0);
 	}