When you execute ksh, it gives:

ksh(26747): unaligned access to 0x600000000000d5e8, ip=0x20000000000a92d0
Bus error (core dumped)

This can be fixed by making the default allocation alignment 16 bytes on
the
ia64 platform with the following patch:

--- pdksh-5.2.14/alloc.c        Tue May 18 10:45:09 1999
+++ pdksh-patch/alloc.c Mon Jul 31 14:10:43 2000
@@ -110,6 +110,11 @@
        Block  *block;
        struct {int _;} junk;   /* alignment */
        double djunk;           /* alignment */
+#ifdef __ia64__
+       /* IA64 requires 16 byte alignment for some objects, so make
+        * this the minimum allocation size */
+       char    ajunk[16];
+#endif
 };
 
 struct Block {