From 8a761c44af607c1a05642d32cbaa6b97106e6b7d Mon Sep 17 00:00:00 2001
From: Steve Reinhardt <steve.reinhardt@amd.com>
Date: Sat, 3 Oct 2009 18:07:39 -0700
Subject: bus: add assertion to catch illegal retry on mem-inhibited
 transaction.

---
 src/mem/bus.cc | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/mem/bus.cc b/src/mem/bus.cc
index 001c37a24..cac08d1a8 100644
--- a/src/mem/bus.cc
+++ b/src/mem/bus.cc
@@ -244,6 +244,9 @@ Bus::recvTiming(PacketPtr pkt)
             // Packet not successfully sent. Leave or put it on the retry list.
             // illegal to block responses... can lead to deadlock
             assert(!pkt->isResponse());
+            // It's also illegal to force a transaction to retry after
+            // someone else has committed to respond.
+            assert(!pkt->memInhibitAsserted());
             DPRINTF(Bus, "recvTiming: src %d dst %d %s 0x%x TGT RETRY\n",
                     src, pkt->getDest(), pkt->cmdString(), pkt->getAddr());
             addToRetryList(src_port);
-- 
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