=== modified file 'src/cf.data.pre'
--- src/cf.data.pre	2013-12-05 11:04:45 +0000
+++ src/cf.data.pre	2013-12-10 20:02:47 +0000
@@ -2655,42 +2655,42 @@
 	
 		startup=N
 	
 	Sets the minimum number of processes to spawn when Squid
 	starts or reconfigures. When set to zero the first request will
 	cause spawning of the first child process to handle it.
 	
 	Starting too few children temporary slows Squid under load while it
 	tries to spawn enough additional processes to cope with traffic.
 	
 		idle=N
 	
 	Sets a minimum of how many processes Squid is to try and keep available
 	at all times. When traffic begins to rise above what the existing
 	processes can handle this many more will be spawned up to the maximum
 	configured. A minimum setting of 1 is required.
 
 		concurrency=
 	
 	The number of requests each certificate validator helper can handle in
-	parallel. Defaults to 0 which indicates the certficate validator
-	is a old-style single threaded redirector.
+	parallel. A value of 0 indicates the certficate validator is an 
+	old-style single threaded redirector. Defaults to 1.
 	
 	When this directive is set to a value >= 1 then the protocol
 	used to communicate with the helper is modified to include
 	a request ID in front of the request/response. The request
 	ID from the request must be echoed back with the response
 	to that request.
 	
 	You must have at least one ssl_crt_validator process.
 DOC_END
 
 COMMENT_START
  OPTIONS WHICH AFFECT THE NEIGHBOR SELECTION ALGORITHM
  -----------------------------------------------------------------------------
 COMMENT_END
 
 NAME: cache_peer
 TYPE: peer
 DEFAULT: none
 LOC: Config.peers
 DOC_START

=== modified file 'src/ssl/Config.cc'
--- src/ssl/Config.cc	2013-02-03 10:45:53 +0000
+++ src/ssl/Config.cc	2013-12-10 19:59:30 +0000
@@ -1,12 +1,21 @@
 #include "squid.h"
 #include "ssl/Config.h"
 
 Ssl::Config Ssl::TheConfig;
 
+Ssl::Config::Config():
+#if USE_SSL_CRTD
+            ssl_crtd(NULL),
+#endif
+            ssl_crt_validator(NULL)
+{ 
+    ssl_crt_validator_Children.concurrency = 1;
+}
+
 Ssl::Config::~Config()
 {
 #if USE_SSL_CRTD
     xfree(ssl_crtd);
 #endif
     xfree(ssl_crt_validator);
 }

=== modified file 'src/ssl/Config.h'
--- src/ssl/Config.h	2013-02-03 10:45:53 +0000
+++ src/ssl/Config.h	2013-12-10 19:58:13 +0000
@@ -1,34 +1,29 @@
 #ifndef SQUID_SSL_CONFIG_H
 #define SQUID_SSL_CONFIG_H
 
 #include "HelperChildConfig.h"
 
 namespace Ssl
 {
 
 class Config
 {
 public:
 #if USE_SSL_CRTD
     char *ssl_crtd; ///< Name of external ssl_crtd application.
     /// The number of processes spawn for ssl_crtd.
     HelperChildConfig ssl_crtdChildren;
 #endif
     char *ssl_crt_validator;
     HelperChildConfig ssl_crt_validator_Children;
-    Config():
-#if USE_SSL_CRTD
-            ssl_crtd(NULL),
-#endif
-            ssl_crt_validator(NULL) {}
-
+    Config();
     ~Config();
 private:
     Config(const Config &); // not implemented
     Config &operator =(const Config &); // not implemented
 };
 
 extern Config TheConfig;
 
 } // namespace Ssl
 #endif