Re: [Patch] Per CPU MCA/INIT data save areas

From: Keith Owens <kaos_at_sgi.com>
Date: 2004-09-16 21:44:33
On Wed, 15 Sep 2004 09:28:58 -0700, 
"Luck, Tony" <tony.luck@intel.com> wrote:
>>Unless anyone has a better solution, I think Keith's suggestion is the
>>next best alternative.  It is no worse than the current code=20
>>(in terms of off-node access) and allows forward progress on the rest
>>of the code.
>
>Take a look at the MCA-TLB recovery code.  It saves per-cpu
>information in the "ia64_mca_tlb_list[]" array, and searches
>through it for an entry that matches cr.lid at fault time.
>
>You could add extra element(s) to this structure for the percpu
>areas.

What about storing the physical address of the per-cpu data area in
ar.k3?

AFAICT we can also reclaim ar.k5 (FPU_OWNER), that field is rarely used
and can be moved to the per_cpu data area.

-
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Received on Thu Sep 16 07:49:13 2004

This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:30 EST