A/UX: Some Error Messages Explained (8/94)


This article describes the meanings of four A/UX error messages:

- "procdup - can't get 2 pages for udot"
- "SCSI timeout"
- "SCSI reset"
- "ku_fastsend: if_output failed:"


"procdup - can't get 2 pages for udot"
--------------------------------------
This message indicates that a kernel memory allocation request failed. It seems that there is not enough memory, and/or there are too many processes running on the particular A/UX system. A suggestion is to add more memory or run fewer processes. With such a message, you should also do the following:

1) Run the "kconfig -av", "pstat -m", and "netstat -m" commands.
2) Examine the output of these commands.
3) Adjust the system parameters from the "kconfig", if necessary.


"SCSI timeout"
--------------
This indicates that the SCSI was running into a situation (like doing a huge file transfer) that caused the device driver to issue a SCSI I/O request to a device. The device, has in turn, timed out before it can process the request from the driver.


"SCSI reset"
------------
This was sent from the SCSI manager to the driver simply to clear out any timeout errors. This symptom had been reported in the A/UX Bug Report Database. There is a lot of improvement and many fixes to the SCSI driver since A/UX 1.1.


"ku_fastsend: if_output failed:"
--------------------------------
This indicates a failure occurred on an interface output routine when the driver or the controller tried to send data to Ethernet. The "error=70" indicates "Network is down". This might be caused by the previous error messages.

Article Change History:
22 Aug 1994 - Reviewed and updated.
27 Aug 1992 - REVIEWED for technical accuracy.

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Published Date: Feb 18, 2012