内存插槽有一个不能用是怎么回事

页面:/news/view-117492/ | 耗时:0.5676 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=117492 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=117492 LIMIT 0,1
select * from tbl_Articles_sphinx where id=117492 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1647420,2746588,1362396,2930526,2931271,2443381,1657803,984146,1310708,1109867,1491708,1659454,1417369,3396377,3181169,1072232,2794010,2607319,2697680,1067173,142118,1112286,1075556,2535479,1073102,1107703,108583,1498557,1068496,3398957) ORDER BY field (ArticleID,1647420,2746588,1362396,2930526,2931271,2443381,1657803,984146,1310708,1109867,1491708,1659454,1417369,3396377,3181169,1072232,2794010,2607319,2697680,1067173,142118,1112286,1075556,2535479,1073102,1107703,108583,1498557,1068496,3398957)