changeset 300266bf68ec in /z/repo/m5
details: http://repo.m5sim.org/m5?cmd=changeset;node=300266bf68ec
description:
bus: add assertion to catch illegal retry
on mem-inhibited transaction.
diffstat:
1 file changed, 3 insertions(+)
src/mem/bus.cc | 3 +++
diffs (13 lines):
diff -r f8453ff56966 -r 300266bf68ec src/mem/bus.cc
--- a/src/mem/bus.cc Fri Oct 02 01:32:58 2009 -0700
+++ b/src/mem/bus.cc Sat Oct 03 18:07:39 2009 -0700
@@ -244,6 +244,9 @@
// 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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