On 05/08/2014 08:28 AM, Jet Chen wrote: > I agree with your option that it is a real BIOS bug and it puts pressure on > the BIOS guys to get this fixed. However, this warning message interferes > with our kernel booting tests and kernel performance tests. We have to > disable CONFIG_INTEL_IOATDMA in kconfig until this issue gets fixed. Before > that, code of CONFIG_INTEL_IOATDMA will not be validated in our testing > system :(. > Hope this issue could get fixed soon. > > Thanks, > Jet >
First I would recommend updating your BIOS. If the updated BIOS also has the issue I would recommend taking this feedback to whoever provided the BIOS for your platform so that they can implement the fix. If I am not mistaken some BIOSes have the option to disable DCA and/or IOATDMA. You might want to check yours to see if you can just disable DCA on your platform until the issue can be resolved. Thanks, Alex -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
