From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jack Steiner Date: Wed, 01 Jun 2005 16:41:03 +0000 Subject: [PATCH] - SPARSEMEM - Change pfn to unsigned long Message-Id: <20050601164102.GA15563@sgi.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org The latest 2.6.12-rc5-mm2 will not boot on large SGI systems. "pfn" was assigned to an "int". Large systems overflow an int. Trivial fix & it works ok now..... Signed-off-by: Jack Steiner Index: linux/mm/page_alloc.c =================================--- linux.orig/mm/page_alloc.c 2005-05-26 10:32:26.804141634 -0500 +++ linux/mm/page_alloc.c 2005-06-01 11:28:43.338491345 -0500 @@ -1731,8 +1731,8 @@ void __init memmap_init_zone(unsigned lo unsigned long start_pfn) { struct page *page; - int end_pfn = start_pfn + size; - int pfn; + unsigned long end_pfn = start_pfn + size; + unsigned long pfn; for (pfn = start_pfn; pfn < end_pfn; pfn++, page++) { if (!early_pfn_valid(pfn)) Index: linux/mm/sparse.c =================================--- linux.orig/mm/sparse.c 2005-05-26 10:32:26.816836797 -0500 +++ linux/mm/sparse.c 2005-06-01 10:29:24.435883417 -0500 @@ -124,7 +124,7 @@ void sparse_init(void) * set. If this is <=0, then that means that the passed-in * map was not consumed and must be freed. */ -int sparse_add_one_section(int start_pfn, int nr_pages, struct page *map) +int sparse_add_one_section(unsigned long start_pfn, int nr_pages, struct page *map) { struct mem_section *ms = __pfn_to_section(start_pfn); -- Thanks Jack Steiner (steiner@sgi.com) 651-683-5302 Principal Engineer SGI - Silicon Graphics, Inc.