Aurora Multimedia 4520CPR User Manual download pdf (Page 43)

Vanguard Multiport 4520CP Controller User’s Guide 6-5

The xxtrace Driver Tracing Utility

where n is the board number in the system starting with 0, and p is the port

number, starting with 0.

For example, xb 0:3 turns on tracing for the first Aurora card in the system

for port 3.

5. To show that tracing is turned on, type:

system# xs

The system displays a list of all the trace points.

6. Reproduce the situation that was occurring when you encountered the problem.

7. As soon as the failure condition occurs (to avoid overwriting any buffers), dump

the contents of the trace buffer out of memory and print it by typing:

system# xp

This command prints data to standard output. You can redirect the contents to a

file, using this format:

system# xp > /tmp/filename

where <filename> is the name of the redirected output file in the /tmp directory.

8. Find out how many lines the trace output is by doing a

wc -l on the file.

To clear the trace buffer and restart tracing, keeping the same port(s) and events

active, enter

system# xc

If the output is not very long, you can FAX it to us. Otherwise, tar it to a diskette

and send it to us addressed to Customer Service and Support or compress, uuen-

code, and e-mail it to

To make the system operational again

1. Clear the trace buffer and shut off tracing:

system# xr

2. Now reboot the system:

system# reboot

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 63 64

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Aurora Multimedia 4520CPR User Manual Page 43