4 files changed, 23 insertions, 3 deletions
diff --git a/indra/llmessage/llcurl.cpp b/indra/llmessage/llcurl.cpp
index 1a432cd7df..0d0fee6ee6 100644
--- a/indra/llmessage/llcurl.cpp
+++ b/indra/llmessage/llcurl.cpp
@@ -131,7 +131,7 @@ void LLCurl::Responder::error(
 // virtual
 void LLCurl::Responder::error(U32 status, const std::string& reason)
 {
-	llinfos << status << ": " << reason << llendl;
+	llinfos << mURL << " [" << status << "]: " << reason << llendl;
 }
 
 // virtual
@@ -139,6 +139,11 @@ void LLCurl::Responder::result(const LLSD& content)
 {
 }
 
+void LLCurl::Responder::setURL(const std::string& url)
+{
+	mURL = url;
+}
+
 // virtual
 void LLCurl::Responder::completedRaw(
 	U32 status,
@@ -148,7 +153,11 @@ void LLCurl::Responder::completedRaw(
 {
 	LLSD content;
 	LLBufferStream istr(channels, buffer.get());
-	LLSDSerialize::fromXML(content, istr);
+	if (!LLSDSerialize::fromXML(content, istr))
+	{
+		llinfos << "Failed to deserialize LLSD. " << mURL << " [" << status << "]: " << reason << llendl;
+	}
+
 	completed(status, reason, content);
 }
 
diff --git a/indra/llmessage/llcurl.h b/indra/llmessage/llcurl.h
index ff63904c91..6e45cbc8b5 100644
--- a/indra/llmessage/llcurl.h
+++ b/indra/llmessage/llcurl.h
@@ -120,8 +120,14 @@ public:
 			// of the header can be parsed.  In the ::completed call above only the body is contained in the LLSD.
 			virtual void completedHeader(U32 status, const std::string& reason, const LLSD& content);
 
+			// Used internally to set the url for debugging later.
+			void setURL(const std::string& url);
+
 	public: /* but not really -- don't touch this */
 		U32 mReferenceCount;
+
+	private:
+		std::string mURL;
 	};
 	typedef boost::intrusive_ptr<Responder>	ResponderPtr;
 
diff --git a/indra/llmessage/llhttpclient.cpp b/indra/llmessage/llhttpclient.cpp
index 8b90a4c5ca..12ecbb36eb 100644
--- a/indra/llmessage/llhttpclient.cpp
+++ b/indra/llmessage/llhttpclient.cpp
@@ -265,6 +265,11 @@ static void request(
 		}
 	}
 
+	if (responder)
+	{
+		responder->setURL(url);
+	}
+
 	req->setCallback(new LLHTTPClientURLAdaptor(responder));
 
 	if (method == LLURLRequest::HTTP_POST  &&  gMessageSystem)
diff --git a/indra/llmessage/llregionpresenceverifier.cpp b/indra/llmessage/llregionpresenceverifier.cpp
index 08c12f90da..e02a288473 100644
--- a/indra/llmessage/llregionpresenceverifier.cpp
+++ b/indra/llmessage/llregionpresenceverifier.cpp
@@ -67,7 +67,7 @@ void LLRegionPresenceVerifier::RegionResponder::result(const LLSD& content)
 	LLHost destination(host, port);
 	LLUUID id = content["region_id"];
 
-	llinfos << "Verifying " << destination.getString() << " is region " << id << llendl;
+	lldebugs << "Verifying " << destination.getString() << " is region " << id << llendl;
 
 	std::stringstream uri;
 	uri << "http://" << destination.getString() << "/state/basic/";