Index: pvfs2_src/src/io/dev/pint-dev.c
===================================================================
--- pvfs2_src/src/io/dev/pint-dev.c	(revision 2100)
+++ pvfs2_src/src/io/dev/pint-dev.c	(revision 2101)
@@ -197,6 +197,17 @@
             desc[i].ptr = NULL;
             break;
         }
+
+#ifdef REDHAT_RELEASE_9
+        /* fixes a corruption issue on linux 2.4 kernels where the buffers are
+         * not being pinned in memory properly 
+         */
+        if(mlock( (const char *) ptr, total_size) != 0)
+        { 
+           gossip_err("Error: FAILED to mlock shared buffer\n");
+           break;
+        }
+#endif
         desc[i].ptr  = ptr;
         desc[i].total_size = total_size;
         desc[i].size = params[i].dev_buffer_size;
@@ -253,6 +264,16 @@
         ptr = (void *) desc[i].ptr;
         assert(ptr);
 
+#ifdef REDHAT_RELEASE_9
+        /* fixes a corruption issue on linux 2.4 kernels where the buffers are
+         * not being pinned in memory properly
+         */
+        if(munlock( (const char *) ptr, desc[i].total_size) != 0)
+        { 
+           gossip_err("Error: FAILED to munlock shared buffer\n");
+        }
+#endif
+
         PINT_mem_aligned_free(ptr);
     }
 }