On 06/07/2010 09:14 AM, Ondrej Zary wrote: > Save/restore MISC_ENABLE register on suspend/resume. > This fixes OOPS (invalid opcode) on resume from STR on Asus P4P800-VM, which > wakes up with MWAIT disabled. > > Is this a correct thing to do? Is it OK on x86_64? This MSR isn't available on all processors, and thus cannot be saved and restored unconditionally like this. On the save path, one can use rdmsr_safe(); on the wakeup path it's not clear to me it is safe to do so, so it would be better to save a presence flag on the save path and conditionalize the write. -hpa _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
