diff --git a/contrib/pg_walinspect/Makefile b/contrib/pg_walinspect/Makefile
index 960530e..85dcb3a 100644
--- a/contrib/pg_walinspect/Makefile
+++ b/contrib/pg_walinspect/Makefile
@@ -15,7 +15,6 @@ REGRESS_OPTS = --temp-config $(top_srcdir)/contrib/pg_walinspect/walinspect.conf
 
 # Disabled because these tests require "wal_level=replica", which
 # some installcheck users do not have (e.g. buildfarm clients).
-NO_INSTALLCHECK = 1
 
 ifdef USE_PGXS
 PG_CONFIG = pg_config
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c
index cf5db23..33d2c73 100644
--- a/src/backend/access/transam/xlogreader.c
+++ b/src/backend/access/transam/xlogreader.c
@@ -373,6 +373,9 @@ XLogNextRecord(XLogReaderState *state, char **errormsg)
 		 */
 		Assert(!XLogRecPtrIsInvalid(state->EndRecPtr));
 
+		if(!*errormsg)
+		  *errormsg = "decode_queue_head is null";
+		
 		return NULL;
 	}
 
diff --git a/src/backend/access/transam/xlogutils.c b/src/backend/access/transam/xlogutils.c
index 4257026..4089efd 100644
--- a/src/backend/access/transam/xlogutils.c
+++ b/src/backend/access/transam/xlogutils.c
@@ -955,6 +955,8 @@ read_local_xlog_page_guts(XLogReaderState *state, XLogRecPtr targetPagePtr,
 			if (loc <= read_upto)
 				break;
 
+			elog(LOG, "let's wait for wal: %d", wait_for_wal);
+
 			/* If asked, let's not wait for future WAL. */
 			if (!wait_for_wal)
 				break;