Re: d63e2e1f3df breaks sparc/T5-8

From: Yinghai Lu
Date: Thu Mar 26 2015 - 16:43:49 EST


[+bjorn, pci list]

On Thu, Mar 26, 2015 at 9:51 AM, David Ahern <david.ahern@xxxxxxxxxx> wrote:
> Hi:
>
> Boot of an 8-socket T5 sparc system fails on top of tree. git bisect points
> to this commit:
>
> commit 904bf6bd150bdafb42ddbb3257ea8
> Author: Yinghai Lu <yinghai@xxxxxxxxxx>
> Date: Thu Jan 15 16:21:51 2015 -0600
>
> sparc/PCI: Clip bridge windows to fit in upstream windows
>
> Every PCI-PCI bridge window should fit inside an upstream bridge window
> because orphaned address space is unreachable from the primary side of the
> upstream bridge. If we inherit invalid bridge windows that overlap an
> upstream window from firmware, clip them to fit and update the bridge
> accordingly.
>
>
> Sure enough if I revert it on top of tree the system boots fine.

Can you send out boot log with "debug ignore_loglevel"?

Thanks

Yinghai
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