On Mon, 2 Jun 2008, Luck, Tony wrote:

quoted

The per cpu allocator requires more per cpu space and we are already near
the limit on IA64. Increase the maximum size of the IA64 per cpu area from
64K to 128K.

quoted

-#define PERCPU_PAGE_SHIFT	16	/* log2() of max. size of per-CPU area */
+#define PERCPU_PAGE_SHIFT	17	/* log2() of max. size of per-CPU area */

Don't you need some more changes to the alt_dtlb_miss handler in
ivt.S for this to work?  128K is not a supported pagesize on any
processor model.

Ok so this needs to be 18?