On Fri, Nov 21, 2014 at 09:59:49PM +0000, Luck, Tony wrote: > > Oh, cpu errata. So this would mean that we can't even rely on the > > contents of the MCA banks, can we? > > > > In any case, is any of the information in the MCA banks in such cases > > even usable then? Because if not, we're definitely barking up the wrong > > tree... > > See above - I think even if there is a bug in the core that isn't setting the > right bits in the MCi_STATUS register - we could get good data from > devices out in the uncore.
Btw, since we're talking about errata - I guess you could use X86_BUG and static_cpu_has_bug* to query in do_machine_check and modify logging behavior of mce_log to bypass mce_severity and put all errors of the last round in mce_log and then dump them out at panic time. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- 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/