diff --git a/tailbone/views/batch/core.py b/tailbone/views/batch/core.py
index b9c28be7..f8b53d13 100644
--- a/tailbone/views/batch/core.py
+++ b/tailbone/views/batch/core.py
@@ -1057,7 +1057,8 @@ class BatchMasterView(MasterView):
             session.flush()
         except Exception as error:
             session.rollback()
-            log.exception("population failed for batch %s: %s", batch.uuid, batch)
+            log.warning("population failed for batch %s: %s", batch.uuid, batch,
+                        exc_info=True)
             session.close()
             if progress:
                 progress.session.load()