Thanks for your answers. I looked into the error log and the following is there:

2002-06-24 11:27:36.53 spid55 Getpage: bstat=0x9, sstat=0, cache

2002-06-24 11:27:36.53 spid55 pageno is/should be: objid is/should be:

2002-06-24 11:27:36.53...