Re: "x86: allocate space within a region top-down" causes bar0 access issue

Jesse Barnes
2010-12-17T19:47:33Z

On Fri, 17 Dec 2010 13:44:58 -0600
Jon Mason <jon.mason@exar.com> wrote:

> The following patch is causing problem with the vxge driver/adapter on
> HP x86-64 systems. Reads to bar0 to return 0xffffffffffffffff instead
> of their intended value. This prevents the vxge module from loading
> by failing sanity checks in the driver for certain values in bar0. We
> are not seeing any issues with this patch on non-HP systems in our
> lab.
>
> Can this patch be removed from 2.6.37 until a better solution can be
> found?

Can you try my for-linus branch and see if the problem still exists
there? It's at
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6.git.

Thanks,
--
Jesse Barnes, Intel Open Source Technology Center