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-rw-r--r--src/mem/packet.hh15
1 files changed, 11 insertions, 4 deletions
diff --git a/src/mem/packet.hh b/src/mem/packet.hh
index 10a4f7e89..3f10458e7 100644
--- a/src/mem/packet.hh
+++ b/src/mem/packet.hh
@@ -692,11 +692,18 @@ class Packet : public Printable
*/
~Packet()
{
- // If this is a request packet for which there's no response,
- // delete the request object here, since the requester will
- // never get the chance.
- if (req && isRequest() && !needsResponse())
+ // Delete the request object if this is a request packet which
+ // does not need a response, because the requester will not get
+ // a chance. If the request packet needs a response then the
+ // request will be deleted on receipt of the response
+ // packet. We also make sure to never delete the request for
+ // express snoops, even for cases when responses are not
+ // needed (CleanEvict and Writeback), since the snoop packet
+ // re-uses the same request.
+ if (req && isRequest() && !needsResponse() &&
+ !isExpressSnoop()) {
delete req;
+ }
deleteData();
}