On Friday, June 11, 2010 05:06:49 pm Yinghai Lu wrote:
>
> please check if this one workaround the problem
>
> Thanks
>
> Yinghai Lu
>
> [PATCH] x86, pci: handle fallout pci devices with peer root bus
>
> Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
This patch apparently does cover up the problem, but it fails on
so many levels:
- incomprehensible summary
- no changelog
- no bugzilla pointer
- unrelated junk in patch ("tmp")
- completely unexplained change to generic resource.c
- no indication that we understand the root cause
> ---
> arch/x86/pci/bus_numa.c | 4 +++-
> kernel/resource.c | 2 +-
> 2 files changed, 4 insertions(+), 2 deletions(-)
>
> Index: linux-2.6/arch/x86/pci/bus_numa.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/pci/bus_numa.c
> +++ linux-2.6/arch/x86/pci/bus_numa.c
> @@ -22,7 +22,8 @@ void x86_pci_root_bus_res_quirks(struct
> return;
>
> for (i = 0; i < pci_root_num; i++) {
> - if (pci_root_info[i].bus_min == b->number)
> + if (pci_root_info[i].bus_min <= b->number &&
> + pci_root_info[i].bus_max >= b->number)
> break;
> }
>
> @@ -37,6 +38,7 @@ void x86_pci_root_bus_res_quirks(struct
> for (j = 0; j < info->res_num; j++) {
> struct resource *res;
> struct resource *root;
> + struct resource *tmp;
>
> res = &info->res[j];
> pci_bus_add_resource(b, res, 0);
> Index: linux-2.6/kernel/resource.c
> ===================================================================
> --- linux-2.6.orig/kernel/resource.c
> +++ linux-2.6/kernel/resource.c
> @@ -451,7 +451,7 @@ static struct resource * __insert_resour
> if (!first)
> return first;
>
> - if (first == parent)
> + if (first == parent || first == new)
> return first;
>
> if ((first->start > new->start) || (first->end < new->end))
>
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