On 04/22/2014 04:39 PM, Andi Kleen wrote: >> That simply will not work if you can take a #GP due to the "safe" MSR >> functions from NMI and #MC context, which would be my main concern. > > At some point the IST entry functions subtracted 1K while the > handler ran to handle simple nesting cases. > > Not sure that code is still there.
Doesn't help if you take an NMI on the first instruction of the #GP handler. -hpa -- 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/