Index: sources/canbus/caninterface.cpp
===================================================================
diff -u -r618891879f5cdc68e37ee68eea005afb76dd4e5b -rfc6ab39520d3af729bbdedf1fa2dc4cc84a7c655
--- sources/canbus/caninterface.cpp	(.../caninterface.cpp)	(revision 618891879f5cdc68e37ee68eea005afb76dd4e5b)
+++ sources/canbus/caninterface.cpp	(.../caninterface.cpp)	(revision fc6ab39520d3af729bbdedf1fa2dc4cc84a7c655)
@@ -367,8 +367,11 @@
     case QCanBusDevice::ConnectionError:
     case QCanBusDevice::ConfigurationError:
     case QCanBusDevice::UnknownError:
-        _canStatus = _canDevice->errorString();
-        LOG_DEBUG(QString("%1 - %2").arg(_erFrameCount).arg(_canStatus));
+        // log the error each 100k frame and if error is different
+        if (_canStatus != _canDevice->errorString() || !(_erFrameCount % 100000)) {
+            _canStatus = _canDevice->errorString();
+            LOG_DEBUG(QString("%1 - %2").arg(_erFrameCount).arg(_canStatus));
+        }
         break;
 
     default: