On 04/09/2014 03:14 PM, Borislav Petkov wrote: > On Wed, Apr 09, 2014 at 02:57:19PM -0400, Jason Baron wrote: >> Right, so maybe the fact that its a desktop chipset means that it >> behaves differently and doesn't raise MCEs on memory errors. We have a >> bunch of these processors and we haven't yet seen an MCE raised on a >> memory error. > > This can't be - an uncorrectable error will have to generate a machine > check exception if consumed - there's no other option. > > Can you do > > rdmsr 0x179 > rdmsr 0x17b > > and paste the results here? >
Unfortunately, the box reporting the ue errors just went into transit (so that I can better examine this issue), so I will probably not be able to run this experiment on that specific box until next week. However, I was able to run it on a very similar box (same pci id for the mch), and I get: # ./rdmsr 0x179 c09 # ./rdmsr 0x17b rdmsr: CPU 0 cannot read MSR 0x0000017b Thanks, -Jason -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
