Comment 35 for bug 424142

This patch from 2.6.33 help to me.

https://patchwork.kernel.org/patch/39988/

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index dbd0f94..89efbb5 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -367,8 +367,12 @@ pci_find_parent_resource(const struct pci_dev *dev, struct resource *res)
    continue; /* Wrong type */
   if (!((res->flags ^ r->flags) & IORESOURCE_PREFETCH))
    return r; /* Exact match */
- if ((res->flags & IORESOURCE_PREFETCH) && !(r->flags & IORESOURCE_PREFETCH))
- best = r; /* Approximating prefetchable by non-prefetchable */
+ /* We can't insert a non-prefetch resource inside a prefetchable parent .. */
+ if (r->flags & IORESOURCE_PREFETCH)
+ continue;
+ /* .. but we can put a prefetchable resource inside a non-prefetchable one */
+ if (!best)
+ best = r;
  }
  return best;
 }