On Fri, 10 Dec 2010 14:07:24 -0700 Bjorn Helgaas <bjorn.helgaas@xxxxxx> wrote: > On Friday, December 10, 2010 01:36:09 pm Jesse Barnes wrote: > > [Actually cc'ing Matthew this time] > > > > On Fri, 10 Dec 2010 12:30:08 -0800 > > Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote: > > > > > On Wed, 08 Dec 2010 14:36:06 -0700 > > > Bjorn Helgaas <bjorn.helgaas@xxxxxx> wrote: > > > > > > > > > > > This adds arch_remove_reservations(), which an arch can implement if it > > > > needs to protect part of the address space from allocation. > > > > > > > > Sometimes that can be done by just requesting a resource. This hook is to > > > > cover cases where protected area doesn't fit well in the hierarchical > > > > resource tree. For example, x86 BIOS E820 reservations are not related > > > > to devices, so they may overlap part of, all of, or more than a device > > > > resource. > > > > > > > > Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx> > > > > --- > > > > > > Hm, this is bigger than the simple change of just avoiding the high 2M; > > > Linus have you checked it out yet? It's nicer than simply adjusting > > > PCIBIOS_MAX_MEM since it will affect all resource callers rather than > > > just PCI, but it's definitely bigger. > > Dan Williams also reproduced the problem on a 2530p and tested this > series (though I think he actually tested a backport in Fedora): > https://bugzilla.kernel.org/show_bug.cgi?id=23542#c7 > https://bugzilla.kernel.org/show_bug.cgi?id=23542#c23 > > The simple PCIBIOS_MAX_MEM_32 change below will fix the 2530p problem, > but it won't help fix the nx6325 problem Rafael reported; details at: > https://bugzilla.kernel.org/show_bug.cgi?id=23332#c20 > > Rafael did confirm on #acpi Wednesday that the full series fixed > his nx6325. Thanks, I'll add Dan and Rafael's tested-bys to the patches (they're already in my for-linus tree). Unless Linus has a problem with them I'll send them over to him this weekend or Monday. -- Jesse Barnes, Intel Open Source Technology Center -- 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
