Bug#690009: "Invalid iomem size. You may experience problems." I do experience problems.
The following message is printed on every boot on Dell Precision M6700 when booted with acpi=off:
Invalid iomem size. You may experience problems.
The full dmesg output (showing also some other errors) is attached. Several other problems might or might not be related to this print, see bugs 689420, 689661.
Similar error message is output on