Index: ntoskrnl/mm/procsup.c
===================================================================
--- ntoskrnl/mm/procsup.c	(revision 38142)
+++ ntoskrnl/mm/procsup.c	(working copy)
@@ -259,9 +259,9 @@
     PETHREAD Thread = PsGetCurrentThread();
 
     /* Make sure we have reserved space for our grow */
-    ASSERT(((PCHAR)Thread->Tcb.StackBase - (PCHAR)Thread->Tcb.StackLimit) <=
-           (KERNEL_LARGE_STACK_SIZE + PAGE_SIZE));
-
+  if (((PCHAR)Thread->Tcb.StackBase - (PCHAR)Thread->Tcb.StackLimit) <=
+           (KERNEL_LARGE_STACK_SIZE - PAGE_SIZE))
+  {
     /*
      * We'll give you three more pages.
      * NOTE: See note in MmCreateKernelStack. These pages are already being reserved.
@@ -271,6 +271,10 @@
 
     /* Return success */
     return STATUS_SUCCESS;
+  }
+
+  DPRINT1("MmGrowKernelStack failed\n");
+  return STATUS_UNSUCCESSFUL;
 }
 
 NTSTATUS
Index: ntoskrnl/mm/mpw.c
===================================================================
--- ntoskrnl/mm/mpw.c	(revision 38142)
+++ ntoskrnl/mm/mpw.c	(working copy)
@@ -88,7 +88,7 @@
       MmWriteDirtyPages(128, &PagesWritten);
 #endif
 
-      CcRosFlushDirtyPages(128, &PagesWritten);
+      // CcRosFlushDirtyPages(128, &PagesWritten);
    }
 }