On Wednesday 09 January 2008 08:49:52 pm Greg KH wrote: > On Wed, Jan 02, 2008 at 01:42:23PM -0700, Bjorn Helgaas wrote: > > The patch below was put in 2.6.23.12 as a fix for > > http://bugzilla.kernel.org/show_bug.cgi?id=9514. It apparently > > does make 9514 go away, but only by coincidence. There are a > > couple other ideas about fixing 9514. My proposed patch is > > attached in the bugzilla. > > > > The .12 patch reduces the number of resources we reserve from > > 24 to 8 ioport regions and from 12 to 4 mmio regions per PNP device. > > It also removes a warning about regions we ignore. > > That patch was merely a revert of a prior patch, it did not "do" > anything new at all :) > > > Obviously, we want to reserve ALL the regions for PNP devices, > > and Thomas is working on a patch for that (which I hope will be > > ready for 2.6.25). But in the meantime, the .12 patch makes it > > more likely that we will have resource conflicts with PNP devices. > > > > http://bugzilla.kernel.org/show_bug.cgi?id=9630 appears to be > > such a conflict. > > > > I think the patch below should be removed from the stable series. > > What do you mean "removed"? It was a revert of a prior patch, as this > patch was reported to cause real problems. > > Do you want me to add it back, and then add another patch? If so, can > you please send the requested patches to [EMAIL PROTECTED] so I can do > it?
Stepping back, the biggest part of the problem is that I replaced the ACPI motherboard driver, which reserved all resources, with the PNP motherboard driver, which currently can reserve only a limited number of resources, because I didn't realize that restriction. So we've had a variety of problems, and we've tried to address them with hacks like increasing the PNP limits. I think we need to put back the ACPI motherboard driver until we have dynamic PNP resources. We will also need an it87 change to deal with http://bugzilla.kernel.org/show_bug.cgi?id=9514. I'll work these up and post them soon. Bjorn -- 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/