On Thu, Mar 17, 2011 at 10:22:33PM +0100, Rafael J. Wysocki wrote: > On Thursday, March 17, 2011, Yinghai Lu wrote: > > 2011/3/16 Rafael J. Wysocki <rjw@xxxxxxx>: > > > On Tuesday, March 15, 2011, Sarah Sharp wrote: > > >> On Tue, Mar 15, 2011 at 01:00:17AM +0100, Rafael J. Wysocki wrote: > > >> > Well, I must admit I have no idea what the problem is. OK, in addition to the > > >> > above changes, please replace the "pci_ext_cfg_avail(root->bus->self)" in the > > >> > same file with "true" and see if _that_ helps. > > >> > > >> Yay, that worked! dmesg is attached. > > > > > > Good, at least we know what the problem is, now we only have to find the root > > > cause. ;-) > > > > > > So, pci_ext_cfg_avail(root->bus->self) returns 0 on your machine, which is kind > > > of unexpected (to put it lightly), so very likely we have uncovered a bug > > > in the init code. > > > > > > Unfortunately, I may not be able to take care of this issue for the next few > > > days, I'll let you know when I get back to it. > > > > her .config does not define PCI_MMCONFIG > > > > # > > # Bus options (PCI etc.) > > # > > CONFIG_PCI=y > > CONFIG_PCI_DIRECT=y > > # CONFIG_PCI_MMCONFIG is not set > > Ah, good catch, thanks! > > @Sarah: you need to set that for PCI Express to work in general. Oh, man, sorry to cause so much work to figure that out. :) I'll compile with that set and see if it helps. Not sure why that config worked on 2.6.37, but not 2.6.38. I usually just run `make -j4` with the old .config and basically pick the defaults, except for turning on the occasional new USB device driver. Sarah Sharp -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
