Draining fixes.

src/cpu/o3/cpu.cc:
    Handle draining properly when CPU isn't actually being used.
src/cpu/simple/atomic.cc:
    Be sure to set status properly when draining.
src/mem/bus.cc:
    Fix for draining.

--HG--
extra : convert_revision : d9796e6693e974f022159029fc9743c49a970c8f

1 files changed, 4 insertions, 1 deletions

diff --git a/src/mem/bus.cc b/src/mem/bus.cc
index 7b65d252b..ae87d8099 100644
--- a/src/mem/bus.cc
+++ b/src/mem/bus.cc
@@ -242,8 +242,11 @@ Bus::recvRetry(int id)
         }
     }
     //If we weren't able to drain before, we might be able to now.
-    if (drainEvent && retryList.size() == 0 && curTick >= tickNextIdle)
+    if (drainEvent && retryList.size() == 0 && curTick >= tickNextIdle) {
         drainEvent->process();
+        // Clear the drain event once we're done with it.
+        drainEvent = NULL;
+    }
 }
 
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