--- freem/src/shmmgr.c	2025/04/15 16:49:36	1.9
+++ freem/src/shmmgr.c	2025/04/15 21:08:51	1.11
@@ -1,5 +1,5 @@
 /*
- *   $Id: shmmgr.c,v 1.9 2025/04/15 16:49:36 snw Exp $
+ *   $Id: shmmgr.c,v 1.11 2025/04/15 21:08:51 snw Exp $
  *    shared memory manager
  *
  *  
@@ -24,6 +24,12 @@
  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
  *
  *   $Log: shmmgr.c,v $
+ *   Revision 1.11  2025/04/15 21:08:51  snw
+ *   Add some useful debug output
+ *
+ *   Revision 1.10  2025/04/15 19:26:13  snw
+ *   Remove extra whitespace
+ *
  *   Revision 1.9  2025/04/15 16:49:36  snw
  *   Make use of logprintf throughout codebase
  *
@@ -169,6 +175,8 @@ short shm_init(const size_t seg_size)
                 /* grab the pointers we need */
                 void *old_addr = shm_config->dta;
                 void *new_addr = shm_config->hdr->shmad;
+
+                logprintf (FM_LOG_INFO, "shmmgr:  moving shared memory from %p to %p", old_addr, new_addr);
                 
                 /* detach and reattach */
                 if (shmdt (old_addr) == -1) {
@@ -180,8 +188,6 @@ short shm_init(const size_t seg_size)
 #else                
                 shm_config->dta = shmat (shm_config->seg_id, new_addr, 0);
 #endif
-                
-                
 
                 if (shm_config->dta == (void *) -1) {
                     logprintf (FM_LOG_FATAL, "shm_init:  fatal error attaching shared memory segment [shmat error '%s']", strerror (errno));