diff --git a/ChangeLog b/ChangeLog
index 28abae5cd..cf61d68d0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2009-03-29  Matthias Clasen  <mclasen@redhat.com>
+
+	Bug 577137 – g_logv() will crash if given format args and multiple
+	log levels
+
+	* glib/gmessages.c (g_logv): Copy a va_list when using it
+	multiple times. Reported by Wim Lewis.
+
 2009-03-16  Alexander Larsson  <alexl@redhat.com>
 
 	Bug 575555 – Use fsync() when replacing files to avoid data loss on crash
diff --git a/glib/gmessages.c b/glib/gmessages.c
index 7b90a0215..e080ad6db 100644
--- a/glib/gmessages.c
+++ b/glib/gmessages.c
@@ -462,14 +462,23 @@ g_logv (const gchar   *log_domain,
 	       * in an out-of-memory situation
 	       */
 	      gchar buffer[1025];
-	      gint size;
-	      size = _g_vsnprintf (buffer, 1024, format, args1);
+              gsize size;
+              va_list args2;
+
+              G_VA_COPY (args2, args1);
+	      size = _g_vsnprintf (buffer, 1024, format, args2);
+              va_end (args2);
 
 	      log_func (log_domain, test_level, buffer, data);
 	    }
 	  else
 	    {
-	      gchar *msg = g_strdup_vprintf (format, args1);
+	      gchar *msg;
+              va_list args2;
+
+              G_VA_COPY (args2, args1);
+              msg = g_strdup_vprintf (format, args2);
+              va_end (args2);
 
 	      log_func (log_domain, test_level, msg, data);