Fix a counter bug in the log buffer

* src/util/logging.c: the start pointer need to wrap around too

diff --git a/src/util/logging.c b/src/util/logging.c
index 33b09921bbf85d5a4ae9352bdaa0d0bb0e87574f..b946285ea1c4cb492006ea9f155a81b2bfb9458b 100644 (file)
--- a/src/util/logging.c
+++ b/src/util/logging.c
@@ -271,6 +271,8 @@ static void virLogStr(const char *str, int len) {
         tmp = virLogLen - LOG_BUFFER_SIZE;
         virLogLen = LOG_BUFFER_SIZE;
         virLogStart += tmp;
+        if (virLogStart >= LOG_BUFFER_SIZE)
+            virLogStart -= LOG_BUFFER_SIZE;
     }
     virLogUnlock();
 }