E4500 with 24GB RAM

[Pyun YongHyeon]

On Sat, Jun 11, 2005 at 01:47:48AM -0700, John-Mark Gurney wrote:
 > Pyun YongHyeon wrote this message on Sat, Jun 11, 2005 at 16:26 +0900:
 > > I wonder how you can use NFS reliably on sparc64. Due to failure of
 > > alignment(both server and client) it's really easy to get panic on sparc64.
 > 
 > I was recently trying to upgrade my sparc64 using a cross-built world,
 > and I couldn't get through an installworld with my sparc64 mounted..
 > It kept on panicing..  I plan to take a look at them shortly, but I
 > don't think I was using tcp...  I do have a few back traces if someone
 > wants to look at them...
 > 

Long ago I had a local hack that addresses the alignment issue.
Basically it re-inspected whether the mbuf needs realignment in nfsm_disct().
It was ugly hack and gave performance penalty for architectures that
allow non-aligned memory access.

Personally I believe we should remove nfs_realign() that fails its mission
and rewrite nfsm_disct to handle alignments as NetBSD did. In this way we
can remove duplicated code, nfs_realign(client and server side), and get
clean/central implementation of nfsm_disct since there is no need to call
nfs_realign.

-- 
Regards,
Pyun YongHyeon
http://www.kr.freebsd.org/~yongari	|	yongari at freebsd.org