On Mon, Nov 26, 2012 at 4:56 PM, Bjorn Helgaas <bhelg...@google.com> wrote: > The "channel error register unreachable" message indicates that > pci_read_config_dword() failed. The register in question > (IOAT_PCI_CHANERR_INT_OFFSET) is at 0x180, so possibly we don't have > PCI config accessors for the extended config space (0x100-0xfff). A > complete dmesg log should show that.
Yes, this happens when extended pci configuration space is not reachable. Although the need to access this register has been found to no longer be needed. So, it appears this patch [1] from Dave should be modified to just stop touching that register altogether and then go to -stable. -- Dan [1]: http://marc.info/?l=linux-kernel&m=135310841032707&w=2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
