--- sys/boot/i386/libi386/biossmap.c.orig	2011-02-25 17:10:39.000000000 +0900
+++ sys/boot/i386/libi386/biossmap.c	2011-04-22 22:28:22.377995843 +0900
@@ -119,6 +119,25 @@
 			cur = next;
 		}
 	}
+
+        /* A quick fix for the kernel panic problem on GA-E7AUM-DS2H with over 2GB of RAM.
+           http://miko.org/~tatyana/tech/FreeBSD/FreeBSD_on_GA-E7AUM-DS2H_with_Over_2GB_of_RAM.html */
+
+        // Check if these memory range isn't overlapping each other.
+        for (u_int p = 0; p < smaplen; ++p) {
+          if (smapbase[p].type == 1) { // 1 means it is a free area
+            for (u_int q = 0; q < smaplen; ++q) {
+              if (smapbase[q].type != 1) { // !1 means it is a restricted area
+                if (smapbase[p].base < smapbase[q].base &&
+                                       smapbase[q].base < smapbase[p].base + smapbase[p].length) {
+                  // If a free area (p) is overlapped with a restricted area (q),
+                  // shrink the memory size and try to avoid the problem.
+                  smapbase[p].length = smapbase[q].base - smapbase[p].base;
+                }
+              }
+            }
+          }
+        }
 }
 
 void