From ba8319e02c4e4291b749b4f16d7bbbff2c44f62c Mon Sep 17 00:00:00 2001
From: Stefan Metzmacher <metze@samba.org>
Date: Wed, 28 Jan 2015 15:13:26 +0100
Subject: [PATCH] debug credits client... reproduce
 https://bugzilla.samba.org/show_bug.cgi?id=9702

---
 libcli/smb/smbXcli_base.c | 22 +++++++++++++++++++++-
 source3/client/client.c   |  2 +-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/libcli/smb/smbXcli_base.c b/libcli/smb/smbXcli_base.c
index 8aa6020..7453cc0 100644
--- a/libcli/smb/smbXcli_base.c
+++ b/libcli/smb/smbXcli_base.c
@@ -2555,6 +2555,7 @@ void smb2cli_conn_set_max_credits(struct smbXcli_conn *conn,
 				  uint16_t max_credits)
 {
 	conn->smb2.max_credits = max_credits;
+	conn->smb2.max_credits = 128;
 }
 
 static void smb2cli_req_cancel_done(struct tevent_req *subreq);
@@ -2934,11 +2935,25 @@ NTSTATUS smb2cli_req_compound_submit(struct tevent_req **reqs,
 			credits = state->conn->smb2.max_credits -
 				  state->conn->smb2.cur_credits;
 		}
-		if (state->conn->smb2.max_credits >= state->conn->smb2.cur_credits) {
+		if (state->conn->smb2.max_credits > state->conn->smb2.cur_credits) {
 			credits += 1;
 		}
 
+		if (credits == 0) {
+			state->conn->smb2.max_credits = 0;
+		}
+
 		mid = state->conn->smb2.mid;
+		if (state->conn->smb2.server.capabilities & SMB2_CAP_LARGE_MTU) {
+			if (avail > charge) {
+				charge++;
+			}
+		}
+		DEBUG(0,("opcode[%u] mid[%llu] requests credits[%u] charge[%u] max[%u] cur[%u] avail[%llu]\n",
+			opcode, (unsigned long long)mid, credits, charge,
+			state->conn->smb2.max_credits,
+			state->conn->smb2.cur_credits,
+			(unsigned long long)avail));
 		state->conn->smb2.mid += charge;
 		state->conn->smb2.cur_credits -= charge;
 
@@ -3375,6 +3390,11 @@ static NTSTATUS smb2cli_conn_dispatch_incoming(struct smbXcli_conn *conn,
 		const DATA_BLOB *signing_key = NULL;
 		bool was_encrypted = false;
 
+		DEBUG(0,("opcode[%u] mid[%llu] RESPONSE credits[%u] max[%u] cur[%u] \n",
+			opcode, (unsigned long long)mid, credits,
+			conn->smb2.max_credits,
+			conn->smb2.cur_credits));
+
 		new_credits = conn->smb2.cur_credits;
 		new_credits += credits;
 		if (new_credits > UINT16_MAX) {
diff --git a/source3/client/client.c b/source3/client/client.c
index 5d70897..97cc6ca 100644
--- a/source3/client/client.c
+++ b/source3/client/client.c
@@ -5138,7 +5138,7 @@ static void readline_callback(void)
 	clock_gettime_mono(&now);
 	t = now.tv_sec;
 
-	if (t - last_t < 5)
+	if (t - last_t < 1)
 		return;
 
 	last_t = t;
-- 
1.9.1