- sh->sh_map[i] = (unsigned char *)
- ch_malloc(size >> (1 << (order_start + i + 3)));
- memset(sh->sh_map[i], 0, size >> (1 << (order_start + i + 3)));
+ int shiftamt = order_start + 1 + i;
+ int nummaps = size >> shiftamt;
+ assert(nummaps);
+ nummaps >>= 3;
+ if (!nummaps) nummaps = 1;
+ sh->sh_map[i] = (unsigned char *) ch_malloc(nummaps);
+ memset(sh->sh_map[i], 0, nummaps);