Index: /trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c
===================================================================
--- /trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c	(revision 6153)
+++ /trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c	(revision 6154)
@@ -525,5 +525,5 @@
         pState->pSession = pSession;
         *pDev = makedevice(getmajor(*pDev), iOpenInstance);
-        Log((DEVICE_NAME "VBoxAddSolarisOpen: pSession=%p pState=%p\n", pSession, pState));
+        Log((DEVICE_NAME "VBoxAddSolarisOpen: pSession=%p pState=%p pid=%d\n", pSession, pState, (int)RTProcSelf()));
         return 0;
     }
@@ -614,7 +614,8 @@
     if (!pSession)
     {
-        Log((DEVICE_NAME ":VBoxGuestIoctl: WHUT?!? pSession == NULL! This must be a mistake... pid=%d", (int)Process));
+        Log((DEVICE_NAME ":VBoxAddSolarisClose: WHUT?!? pSession == NULL! This must be a mistake... pid=%d", (int)Process));
         return EFAULT;
     }
+    Log((DEVICE_NAME ":VBoxAddSolarisClose: pid=%d\n", (int)Process));
 #else
     PVBOXGUESTSESSION pSession;
@@ -628,4 +629,5 @@
     pSession = pState->pSession;
     pState->pSession = NULL;
+    Log((DEVICE_NAME ":VBoxAddSolarisClose: pSession=%p pState=%p\n", pSession, pState));
     ddi_soft_state_free(g_pVBoxAddSolarisState, getminor(Dev));
     if (!pSession)
@@ -812,4 +814,5 @@
         Log((DEVICE_NAME ":VBoxAddSolarisIOCtl: pvBuf invalid pointer %p\n", pvBuf));
     }
+    Log((DEVICE_NAME ":VBoxAddSolarisIOCtl: pSession=%p pid=%d.\n", pSession, (int)RTProcSelf()));
 
     size_t cbDataReturned;