Token Ring Problems...

[Paul Norton <pnorton@ccnvhi.com>]

Scott Dudley writes:
 > dmesg command:
 > 
 > the IBM tokenring adapter takes a long time. It might not even help when 
 > the
 > ring is very busy, so we just wait a little longer and hope for the best.
 > tr0: Arrg. Transmitter busy for more than 50 msec. Donald resets adapter,  
 >  but re
 > setting

This usually tells us somebody trod on the adapter's data areas. 

 > more /var/log/messages:
 > 
 > May 12 07:44:19 duq011 kernel: tr0: Line errors 01, Internal errors 00, 
 > Burst er
 > rors 00
 > May 12 07:44:19 duq011 kernel: A/C errors 00, Abort delimiters 00, Lost 
 > frames 0
 > 0
 > May 12 07:44:19 duq011 kernel: Receive congestion count 00, Frame copied 
 > errors
 > 00
 > May 12 07:44:19 duq011 kernel: Frequency errors FF, Token errors 00

Frequency errors indicate the ring clock and the adapter clock
differ. Maybe a cabling or an electromagnetic interference
problem. The line error indicates a corrupt frame got put on the ring
at some time. 

 > May 12 07:44:29 duq011 kernel: tr0: xmit ret_code: 28 xmit error
code: D8

I don't have a reference handy to tell me what the ret_code 28 means,
but the xmit error D8 is meaningless in this instance and can be
ignored. 

 > May 12 07:45:09 duq011 last message repeated 3 times
 > May 12 07:45:55 duq011 last message repeated 8 times
 > May 12 07:46:10 duq011 kernel: tr0: New ring status: 20
 > May 12 07:46:11 duq011 kernel: tr0: Signal loss/Lobe fault

The ring just reset. 

 > May 12 07:46:11 duq011 kernel: tr0: We try to reopen the adapter.
 > May 12 07:46:16 duq011 kernel: tr0: Adapter initialized and opened.
 > May 12 07:46:16 duq011 kernel: tr0: adapter error: ISRP_EVEN : 04

We're dead.

 > May 12 07:46:16 duq011 kernel: tr0: Unknown command 09 encountered
 > May 12 07:46:17 duq011 kernel: tr0: Unknown command 09 in arb
 > May 12 07:46:30 duq011 kernel: tr0: Arrg. Transmitter busy for more than 50 
 > msec
 > . Donald resets adapter, but resetting
 > 
 > What is the xmit error code D8?  If anyone is able to ascertain what is 
 > happening from the above, I would vertainly appreciate your input.

Could either be a wonky adapter or a hardware conflict with another
adapter or ?  I won't be able to find out what the ret_code 28 means
until I can look at the adapter reference tonight.

 > Many thanks.
 > 
 > --------------------------------------
 > Scott Dudley, Telesoft Corp.
 > 
 > Phone: (602) 308-1115
 >    FAX: (602) 308-1300
 >  Email: scott@telesoft.com
 >