afs: Warn about afs_conn overcounts

[openafs.git] / src / afs / afs_conn.c

diff --git a/src/afs/afs_conn.c b/src/afs/afs_conn.c
index 2a1aeee..8cd8a75 100644 (file)
--- a/src/afs/afs_conn.c
+++ b/src/afs/afs_conn.c
@@ -453,6 +453,18 @@ afs_ConnBySA(struct srvAddr *sap, unsigned short aport, afs_int32 acell,
         return NULL;
     }
 
+    if (tc->refCount > 10000) {
+       static int warned;
+       if (!warned) {
+           warned = 1;
+           afs_warn("afs: Very high afs_conn refCount detected (conn %p, count %d)\n",
+                    tc, (int)tc->refCount);
+           afs_warn("afs: Trying to continue, but this may indicate an issue\n");
+           afs_warn("afs: that may eventually crash the machine. Please file\n");
+           afs_warn("afs: a bug report.\n");
+       }
+    }
+
     if (tu->states & UTokensBad) {
        /* we may still have an authenticated RPC connection here,
         * we'll have to create a new, unauthenticated, connection.