Messages in this thread Patch in this message | | | Date | Sun, 2 Nov 2003 13:57:48 +0800 | From | Geoffrey Lee <> | Subject | [patch] reproducible athlon mce fix |
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Hi all,
After switching from 2.4.22 to 2.6.0-test9, I have received reproducible MCE non-fatal error check messages in my kernel log. (For example, one shows up right after my first scsi card init).
From Dave Jones' patch here:
http://lists.insecure.org/lists/linux-kernel/2003/Sep/7362.html
and another message here:
http://lkml.org/lkml/2003/10/7/214
would seem to imply that Athlons don't like having their Bank 0 poked at, though that's what non-fatal.c does. Would it be correct to make sure that that non-fatal.c starts at bank 1, if it is an Athlon?
Dave, is the following patch correct? Booted and tested, no ill effects so far ...
- g. --- linux-2.6.0-test9/arch/i386/kernel/cpu/mcheck/non-fatal.c.orig 2003-11-02 13:31:43.000000000 +0800 +++ linux-2.6.0-test9/arch/i386/kernel/cpu/mcheck/non-fatal.c 2003-11-02 13:34:37.000000000 +0800 @@ -30,7 +30,11 @@ int i; preempt_disable(); +#if CONFIG_MK7 + for (i=1; i<nr_mce_banks; i++) { +#else for (i=0; i<nr_mce_banks; i++) { +#endif rdmsr (MSR_IA32_MC0_STATUS+i*4, low, high); if (high & (1<<31)) { | |