Service stops regularly with event ID 7024

Our IBM Websphere App Service crashes regularly. We get this error in the event log:
The IBM WebSphere Application Server V6.1 - App Server service terminated with service-specific error 134222016 (0x80010C0).

The SystemErr.log is full of errors like:
[2/6/08 15:14:18:569 CET] 0000008d SystemErr     R java.io.EOFException
[2/6/08 15:14:18:569 CET] 0000008d SystemErr     R       at java.io.DataInputStream.readFully(DataInputStream.java:204)

And the native_stderr.log is about 500 MB, full of non-readable characters. We have tried to increase the heap size (well, we get 1 crash a day instead of 2!), disable the tracing, change log level to severe, disable the application log. We really don't know where to look for. A help would be greatly appreciated.
Pierrot
siufAsked:
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HonorGodSoftware EngineerCommented:
If you are really still at 6.1.0.0, I would suggest that this is the source if your problem.

You probably want to upgrade your Application Server.
Take a look a the WebSphere Application Server Support page:
http://IBM.com/software/webservers/appserv/was/support

Under "Download", locate, and use  the "Recommended fixes" link
Select the link matching the version of WebSphere you are using (i.e., "Version 6.1")
This shows the table of information about the latest fixes/updates available for this version of WSAS.
I would strongly encourage you to move to 6.1.0.13, but I don't have any idea of the number or types of fixes that are going to be made available with that FixPack.

If you look at the "fix list for V6.1" (which current is available at http://www.ibm.com/support/docview.wss?rs=180&uid=swg27007951, you will find that hundreds of fixes exist for this version of WebSphere).
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siufAuthor Commented:
Thank you for this suggestion. We will apply it next week. I will inform about the results after some days.
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HonorGodSoftware EngineerCommented:
Good luck.
I will be out of town next week, and won't have access to a computer until the 18th.
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HonorGodSoftware EngineerCommented:
Thanks for the grade & points.
I hope that you were able to resolve your issue with the upgrade.
Good luck
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