You attach a 1394 device to a computer that is running Windows 7 or Windows Server 2008 R2. In this scenario, the computer may crash after you resume the computer from sleep or from hibernation. Additionally, you may receive the following Stop error message:



STOP: 0x000000D1 The DRIVER_IRQL_NOT_LESS_OR_EQUAL

See if this Hotfix from KB978982 helps you.

This guide on Windows 7 Stop Errors and Blue Screens may also interest you.