Commit b4b3bd96 authored Jun 06, 2008 by Daniel Rahn Committed by Ingo Molnar Jun 18, 2008

x86: correctly report NR_BANKS in mce_64.c



attached is a no-brainer that makes kernel correctly report
NR_BANKS for MCE. We are right now limited to NR_BANKS==6, but the
error message will use the available number of banks instead of the
defined maximum.

For a Nehalem based system it will print:

"MCE: warning: using only 9 banks"

while the correct message would be

"MCE: warning: using only 6 banks"

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 8edc5cc5

arch/x86/kernel/cpu/mcheck/mce_64.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -445,9 +445,9 @@ static void mce_init(void *dummy)
		rdmsrl(MSR_IA32_MCG_CAP, cap);
		banks = cap & 0xff;
		if (banks > MCE_EXTENDED_BANK) {
		banks = MCE_EXTENDED_BANK;
		printk(KERN_INFO "MCE: warning: using only %d banks\n",
		MCE_EXTENDED_BANK);
		banks = MCE_EXTENDED_BANK;
		}
		/* Use accurate RIP reporting if available. */
		if ((cap & (1<<9)) && ((cap >> 16) & 0xff) >= 9)