From d907d0ec723538c7969bf8f2f2d6f29439b02985 Mon Sep 17 00:00:00 2001
From: Ali Saidi <Ali.Saidi@ARM.com>
Date: Thu, 1 Mar 2012 17:26:31 -0600
Subject: [PATCH] Cache: Fix an issue with LRU when bonus block is used to
 complete transaction.

The block is never inserted because it's the one extra block in the cache, but
it can be invalidated twice in a row. In that case the block doesn't have a
new master id (beacuse it was never inserted), however it is valid and
the accounting goes wrong at that point.
---
 src/mem/cache/cache_impl.hh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh
index 40359d31e..024ae3297 100644
--- a/src/mem/cache/cache_impl.hh
+++ b/src/mem/cache/cache_impl.hh
@@ -994,6 +994,7 @@ Cache<TagStore>::handleResponse(PacketPtr pkt)
         if (blk->isDirty()) {
             allocateWriteBuffer(writebackBlk(blk), time, true);
         }
+        blk->status &= ~BlkValid;
         tags->invalidateBlk(blk);
     }