Do not activate sparse memory by default for c1700 and c2600 platforms.

https://github.com/GNS3/dynamips/issues/54

gns3server/modules/dynamips/backends/vm.py

@@ -158,7 +158,8 @@ class VM(object):
                 router = PLATFORMS[platform](hypervisor, name, router_id)
             router.ram = ram
             router.image = image
-            router.sparsemem = self._hypervisor_manager.sparse_memory_support
+            if platform not in ("c1700", "c2600"):
+                router.sparsemem = self._hypervisor_manager.sparse_memory_support
             router.mmap = self._hypervisor_manager.mmap_support
             if "console" in request:
                 router.console = request["console"]

gns3server/modules/dynamips/nodes/c1700.py

@@ -51,6 +51,7 @@ class C1700(Router):
         self._chassis = chassis
         self._iomem = 15  # percentage
         self._clock_divisor = 8
+        self._sparsemem = False
 
         if chassis != "1720":
             self.chassis = chassis
@@ -72,7 +73,8 @@ class C1700(Router):
                              "disk1": self._disk1,
                              "chassis": self._chassis,
                              "iomem": self._iomem,
-                             "clock_divisor": self._clock_divisor}
+                             "clock_divisor": self._clock_divisor,
+                             "sparsemem": self._sparsemem}
 
         # update the router defaults with the platform specific defaults
         router_defaults.update(platform_defaults)

gns3server/modules/dynamips/nodes/c2600.py

@@ -66,6 +66,7 @@ class C2600(Router):
         self._chassis = chassis
         self._iomem = 15  # percentage
         self._clock_divisor = 8
+        self._sparsemem = False
 
         if chassis != "2610":
             self.chassis = chassis
@@ -87,7 +88,8 @@ class C2600(Router):
                              "disk1": self._disk1,
                              "iomem": self._iomem,
                              "chassis": self._chassis,
-                             "clock_divisor": self._clock_divisor}
+                             "clock_divisor": self._clock_divisor,
+                             "sparsemem": self._sparsemem}
 
         # update the router defaults with the platform specific defaults
         router_defaults.update(platform_defaults)