# Re: \[PATCH\] 4xx: Workaround for CHIP\_11 Errata

- From: Sean MacLennan \<hidden\>
- Date: 2008-05-15 20:31:08 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2008/05/9440113
- Thread: https://ratatoskr.run/linuxppc-dev/2008/05/9440088/t.md

```text
On Thu, 15 May 2008 09:43:46 -0500
"Josh Boyer" [ref] wrote:

> This implements the recommended workaround for this errata for chips
> that use older versions of firmware that do not already handle it.
> The last 4KiB of memory are hidden from the kernel to prevent the
> problem transactions from occurring.

Do you know which versions of firmware have this problem?

Cheers,
   Sean
```