[Crash-utility] [Patch] Fix backtrace of xen-ia64

[Akio Takebe]

Hi,

This patch improves backtrace of xen-ia64.
If the cpu map is not contiguous, we cannot get the stack address.

Signed-off-by: Akio Takebe <takebe_akio at jp.fujitsu.com>

Best Regards,

Akio Takebe
---

--- crash-4.0-6.3.orig/ia64.c	2008-04-30 02:39:16.000000000 +0900
+++ crash-4.0-6.3/ia64.c	2008-05-21 15:05:53.000000000 +0900
@@ -4167,14 +4167,14 @@ ia64_in_mca_stack_hyper(ulong addr, stru
 	if (!machdep->kvtop(NULL, addr, &paddr, 0))
 		return 0;
 
-	__per_cpu_mca = (ulong *)GETBUF(sizeof(ulong) * xht->pcpus);
+	__per_cpu_mca = (ulong *)GETBUF(sizeof(ulong) * plen);
 
 	if (!readmem(symbol_value("__per_cpu_mca"), KVADDR, __per_cpu_mca,
-	    sizeof(ulong) * xht->pcpus, "__per_cpu_mca", RETURN_ON_ERROR|QUIET))
+	    sizeof(ulong) * plen, "__per_cpu_mca", RETURN_ON_ERROR|QUIET))
 		return 0;
 
 	if (CRASHDEBUG(1)) {
-		for (i = 0; i < xht->pcpus; i++) {
+		for (i = 0; i < plen; i++) {
 			fprintf(fp, "__per_cpu_mca[%d]: %lx\n", 
 		 		i, __per_cpu_mca[i]);
 		}