8.0-RC1 panic attaching ppc

[Daniel O'Connor]

On Sun, 27 Sep 2009, Alan Cox wrote:
> Ok, now I can explain what is happening.  The kernel is using 1GB
> pages to implement the direct map.  Unfortunately, pmap_extract()
> doesn't know how to handle a 1GB page mapping.  pmap_kextract() only
> works by an "accident" of its different implementation.  In other
> words, it should not be relied upon to work either.
>
> Please revert whatever patch John gave you and try the attached
> patch. It simply disables the use of 1GB page mapping by the direct
> map.

Your patch fixes (works around?) the problem.

Thanks!

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 188 bytes
Desc: This is a digitally signed message part.
Url : http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20090928/ea5255f8/attachment.pgp