Debug stuff added to BlowawayRelationBuffers().

vadim4o · vadim4o · commit eca199d7b0db · 1997-10-22T19:04:43.000Z
diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.27 1997/10/12 07:12:02 vadim Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.28 1997/10/22 19:04:43 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1631,9 +1631,18 @@ BlowawayRelationBuffers(Relation rdesc, BlockNumber block)
 				buf->tag.blockNum >= block)
 			{
 				if (buf->flags & BM_DIRTY)
+				{
+					elog (NOTICE, "BlowawayRelationBuffers(%s (local), %u): block %u is dirty",
+						rdesc->rd_rel->relname.data, block, buf->tag.blockNum);
 					return (-1);
+				}
 				if (LocalRefCount[i] > 0)
+				{
+					elog (NOTICE, "BlowawayRelationBuffers(%s (local), %u): block %u is referenced (%d)",
+						rdesc->rd_rel->relname.data, block, 
+						buf->tag.blockNum, LocalRefCount[i]);
 					return (-2);
+				}
 				buf->tag.relId.relId = InvalidOid;
 			}
 		}
@@ -1650,11 +1659,17 @@ BlowawayRelationBuffers(Relation rdesc, BlockNumber block)
 		{
 			if (buf->flags & BM_DIRTY)
 			{
+				elog (NOTICE, "BlowawayRelationBuffers(%s, %u): block %u is dirty (private %d, last %d, global %d)",
+					buf->sb_relname, block, buf->tag.blockNum, 
+					PrivateRefCount[i], LastRefCount[i], buf->refcount);
 				SpinRelease(BufMgrLock);
 				return (-1);
 			}
 			if (!(buf->flags & BM_FREE))
 			{
+				elog (NOTICE, "BlowawayRelationBuffers(%s, %u): block %u is referenced (private %d, last %d, global %d)",
+					buf->sb_relname, block, buf->tag.blockNum, 
+					PrivateRefCount[i], LastRefCount[i], buf->refcount);
 				SpinRelease(BufMgrLock);
 				return (-2);
 			}

Original file line number	Diff line number	Diff line change
`@@ -7,7 +7,7 @@`
`7`	`7`	`*`
`8`	`8`	`*`
`9`	`9`	`* IDENTIFICATION`
`10`		`- * $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.27 1997/10/12 07:12:02 vadim Exp $`
	`10`	`+ * $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.28 1997/10/22 19:04:43 vadim Exp $`
`11`	`11`	`*`
`12`	`12`	`*-------------------------------------------------------------------------`
`13`	`13`	`*/`
`@@ -1631,9 +1631,18 @@ BlowawayRelationBuffers(Relation rdesc, BlockNumber block)`
`1631`	`1631`	`buf->tag.blockNum >= block)`
`1632`	`1632`	`{`
`1633`	`1633`	`if (buf->flags & BM_DIRTY)`
	`1634`	`+ {`
	`1635`	`+ elog (NOTICE, "BlowawayRelationBuffers(%s (local), %u): block %u is dirty",`
	`1636`	`+ rdesc->rd_rel->relname.data, block, buf->tag.blockNum);`
`1634`	`1637`	`return (-1);`
	`1638`	`+ }`
`1635`	`1639`	`if (LocalRefCount[i] > 0)`
	`1640`	`+ {`
	`1641`	`+ elog (NOTICE, "BlowawayRelationBuffers(%s (local), %u): block %u is referenced (%d)",`
	`1642`	`+ rdesc->rd_rel->relname.data, block,`
	`1643`	`+ buf->tag.blockNum, LocalRefCount[i]);`
`1636`	`1644`	`return (-2);`
	`1645`	`+ }`
`1637`	`1646`	`buf->tag.relId.relId = InvalidOid;`
`1638`	`1647`	`}`
`1639`	`1648`	`}`
`@@ -1650,11 +1659,17 @@ BlowawayRelationBuffers(Relation rdesc, BlockNumber block)`
`1650`	`1659`	`{`
`1651`	`1660`	`if (buf->flags & BM_DIRTY)`
`1652`	`1661`	`{`
	`1662`	`+ elog (NOTICE, "BlowawayRelationBuffers(%s, %u): block %u is dirty (private %d, last %d, global %d)",`
	`1663`	`+ buf->sb_relname, block, buf->tag.blockNum,`
	`1664`	`+ PrivateRefCount[i], LastRefCount[i], buf->refcount);`
`1653`	`1665`	`SpinRelease(BufMgrLock);`
`1654`	`1666`	`return (-1);`
`1655`	`1667`	`}`
`1656`	`1668`	`if (!(buf->flags & BM_FREE))`
`1657`	`1669`	`{`
	`1670`	`+ elog (NOTICE, "BlowawayRelationBuffers(%s, %u): block %u is referenced (private %d, last %d, global %d)",`
	`1671`	`+ buf->sb_relname, block, buf->tag.blockNum,`
	`1672`	`+ PrivateRefCount[i], LastRefCount[i], buf->refcount);`
`1658`	`1673`	`SpinRelease(BufMgrLock);`
`1659`	`1674`	`return (-2);`
`1660`	`1675`	`}`