Isn't the problem at hand that the boot-kernel stops in mid-transaction, and the resumed hibernate image then blunders forward with its first transaction only to find the EC in an intermediate state? If yes, I then making the transaction atomic WRT the boot kernel stopping should fix the problem. The patch sets a FROZEN bit, and subsequent requests for EC transactions simply fail. How do we know that we set the bit at the right time? What transactions or parts of transactions will fail, and what are the consequences of those failures? thanks, Len Brown, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html