diff --git a/sys/nfs41_debug.c b/sys/nfs41_debug.c
index 595b020..0f7b917 100644
--- a/sys/nfs41_debug.c
+++ b/sys/nfs41_debug.c
@@ -304,8 +304,10 @@ void print_file_object(int on, PFILE_OBJECT file)
 void print_fo_all(int on, PRX_CONTEXT c)
 {
     if (!on) return;
-    DbgP("OpenCount %d FCB %p SRV %p FOBX %p\n", c->pFcb->OpenCount, c->pFcb,
-        c->pRelevantSrvOpen, c->pFobx);
+    if (c->pFcb && c->pRelevantSrvOpen)
+        DbgP("OpenCount %d FCB %p SRV %p FOBX %p VNET %p NET %p\n", 
+            c->pFcb->OpenCount, c->pFcb, c->pRelevantSrvOpen, c->pFobx,
+            c->pRelevantSrvOpen->pVNetRoot, c->pFcb->pNetRoot);
 }
 
 VOID print_fcb(int on, IN PMRX_FCB p)
diff --git a/sys/nfs41_driver.c b/sys/nfs41_driver.c
index 5b1a06d..a47bcb3 100644
--- a/sys/nfs41_driver.c
+++ b/sys/nfs41_driver.c
@@ -2670,12 +2670,8 @@ BOOLEAN has_file_changed(
 void print_open_args(PRX_CONTEXT RxContext)
 {
     print_debug_header(RxContext);
-    print_net_root(0, RxContext->pFcb->pNetRoot);
-    print_v_net_root(0, RxContext->pRelevantSrvOpen->pVNetRoot);
     //DbgP("RxContext->FsdUid %ld\n", RxContext->FsdUid);
     //DbgP("RxInferFileType returns %d\n", RxInferFileType(RxContext));
-    print_irps_flags(0, RxContext->CurrentIrpSp);
-    print_irp_flags(0, RxContext->CurrentIrp);
     print_nt_create_params(1, RxContext->Create.NtCreateParameters);
 }
 
@@ -3639,14 +3635,11 @@ out:
 
 static void print_acl_args(SECURITY_INFORMATION info)
 {
-    if (info & OWNER_SECURITY_INFORMATION)
-        DbgP("OWNER_SECURITY_INFORMATION\n");
-    if (info & GROUP_SECURITY_INFORMATION)
-        DbgP("GROUP_SECURITY_INFORMATION\n");
-    if (info & DACL_SECURITY_INFORMATION)
-        DbgP("DACL_SECURITY_INFORMATION\n");
-    if (info & SACL_SECURITY_INFORMATION)
-        DbgP("SACL_SECURITY_INFORMATION\n");
+    DbgP("Security query: %s %s %s\n",
+        (info & OWNER_SECURITY_INFORMATION)?"OWNER":"",
+        (info & GROUP_SECURITY_INFORMATION)?"GROUP":"",
+        (info & DACL_SECURITY_INFORMATION)?"DACL":"",
+        (info & SACL_SECURITY_INFORMATION)?"SACL":"");
 }
 
 static NTSTATUS map_query_acl_error(DWORD error)