Index: src/lxc/lxc_container.c
===================================================================
--- src/lxc/lxc_container.c.orig
+++ src/lxc/lxc_container.c
@@ -136,6 +136,7 @@ int lxcContainerHasReboot(void)
     int cmd, v;
     int status;
     char *tmp;
+    int stacksize = getpagesize() * 4;
 
     if (virFileReadAll("/proc/sys/kernel/ctrl-alt-del", 10, &buf) < 0)
         return -1;
@@ -152,14 +153,21 @@ int lxcContainerHasReboot(void)
     VIR_FREE(buf);
     cmd = v ? LINUX_REBOOT_CMD_CAD_ON : LINUX_REBOOT_CMD_CAD_OFF;
 
-    if (VIR_ALLOC_N(stack, getpagesize() * 4) < 0) {
+#ifdef __ia64__
+    stacksize *= 2;
+#endif
+    if (VIR_ALLOC_N(stack, stacksize) < 0) {
         virReportOOMError();
         return -1;
     }
 
-    childStack = stack + (getpagesize() * 4);
+    childStack = stack + stacksize;
 
+#ifdef __ia64__
+    cpid = __clone2(lxcContainerRebootChild, stack, stacksize, flags, &cmd);
+#else
     cpid = clone(lxcContainerRebootChild, childStack, flags, &cmd);
+#endif
     VIR_FREE(stack);
     if (cpid < 0) {
         virReportSystemError(errno, "%s",
@@ -2358,6 +2366,9 @@ int lxcContainerStart(virDomainDefPtr de
                               ttyPaths, nttyPaths, handshakefd};
 
     /* allocate a stack for the container */
+#ifdef __ia64__
+    stacksize *= 2;
+#endif
     if (VIR_ALLOC_N(stack, stacksize) < 0) {
         virReportOOMError();
         return -1;
@@ -2377,7 +2388,11 @@ int lxcContainerStart(virDomainDefPtr de
         cflags |= CLONE_NEWNET;
     }
 
+#ifdef __ia64__
+    pid = __clone2(lxcContainerChild, stack, stacksize, cflags, &args);
+#else
     pid = clone(lxcContainerChild, stacktop, cflags, &args);
+#endif
     VIR_FREE(stack);
     VIR_DEBUG("clone() completed, new container PID is %d", pid);
 
@@ -2403,6 +2418,7 @@ int lxcContainerAvailable(int features)
     int cpid;
     char *childStack;
     char *stack;
+    int stacksize = getpagesize() * 4;
 
     if (features & LXC_CONTAINER_FEATURE_USER)
         flags |= CLONE_NEWUSER;
@@ -2410,14 +2426,21 @@ int lxcContainerAvailable(int features)
     if (features & LXC_CONTAINER_FEATURE_NET)
         flags |= CLONE_NEWNET;
 
-    if (VIR_ALLOC_N(stack, getpagesize() * 4) < 0) {
+#ifdef __ia64__
+    stacksize *= 2;
+#endif
+    if (VIR_ALLOC_N(stack, stacksize) < 0) {
         VIR_DEBUG("Unable to allocate stack");
         return -1;
     }
 
-    childStack = stack + (getpagesize() * 4);
+    childStack = stack + stacksize;
 
+#ifdef __ia64__
+    cpid = __clone2(lxcContainerDummyChild, stack, stacksize, flags, NULL);
+#else
     cpid = clone(lxcContainerDummyChild, childStack, flags, NULL);
+#endif
     VIR_FREE(stack);
     if (cpid < 0) {
         char ebuf[1024] ATTRIBUTE_UNUSED;