Comment 25 for bug 440470

Same issue with an Asus A8N-LA (Compaq motherboard, no BIOS update available), kernels 2.6.31-16-generic and 2.6.31-17-generic. "acpi_enforce_resources=lax" doesn't make the boot symptom go away and I do experience random lockups.

[ 13.882321] ACPI: I/O resource nForce2_smbus [0x4c00-0x4c3f] conflicts with ACPI region SM00 [0x4c00-0x4c05]
[ 13.882324] ACPI: This conflict may cause random problems and system instability
[ 13.882326] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver