centos 5 tomcat 5 出现 java.net.SocketException: Broken pipe

请问这个问题是否？对一个监听端口是否是数量限制？

项目上线，出现的问题。google等找不到解决办法。
webapplication Apache2.2+tomcat5.5

程序架构：jsf1.2+spring1.2+hibernate3.0

tomcat过一段时间就会死机。内存过一个小时就会增长100M

请知道问题的人给与答复，万分感谢。

错误代码：

Jun 12, 2007 2:03:12 AM org.apache.jk.core.MsgContext action
WARNING: Error sending end packet
java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at org.apache.jk.common.ChannelSocket.send(ChannelSocket.java:531)
at org.apache.jk.common.JkInputStream.endMessage(JkInputStream.java:112)
at org.apache.jk.core.MsgContext.action(MsgContext.java:293)
at org.apache.coyote.Response.action(Response.java:182)
at org.apache.coyote.Response.finish(Response.java:304)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:204)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Jun 12, 2007 2:03:12 AM org.apache.jk.common.ChannelSocket processConnection
WARNING: processCallbacks status 2