请帮助看看这些日志，能给我一个思路吗

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/oracle/app/admin/tjdb/bdump/tjdb_ckpt_44102.trc
Oracle9i Enterprise Edition Release 9.2.0.5.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.5.0 - Production
ORACLE_HOME = /oracle/app/product/9.2.0
System name:        AIX
Node name:        TJDBSRV
Release:        2
Version:        5
Machine:        00064E1C4C00
Instance name: tjdb
Redo thread mounted by this instance: 1
Oracle process number: 5
Unix process pid: 44102, image: oracle@TJDBSRV (CKPT)

*** 2004-08-12 20:00:57.858
*** SESSION ID4.1) 2004-08-12 20:00:57.833
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.