The following bug has been logged online:
Bug reference: 5915
Logged by: YAMAMOTO Takashi
Email address: y...@mwd.biglobe.ne.jp
PostgreSQL version: 9.1devel
Operating system: NetBSD
Description: OldSerXidAdd inflates pg_serial too much
Details:
a seemingly wrong math in OldSerXidAdd makes it busy writing zeros
to pg_serial.
diff --git a/src/backend/storage/lmgr/predicate.c
b/src/backend/storage/lmgr/predicate.c
index aa657fa..297508b 100644
--- a/src/backend/storage/lmgr/predicate.c
+++ b/src/backend/storage/lmgr/predicate.c
@@ -755,7 +755,7 @@ OldSerXidAdd(TransactionId xid, SerCommitSeqNo
minConflictCommitSeqNo)
{
page = OldSerXidPage(tailXid);
oldSerXidControl->tailSegment = OldSerXidSegment(page);
- page = oldSerXidControl->tailSegment * OLDSERXID_ENTRIESPERPAGE;
+ page = oldSerXidControl->tailSegment * SLRU_PAGES_PER_SEGMENT;
isNewPage = true;
}
else
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