epic100 hangs after some time

[Administrador]

Hi, i'm having the same short of problem that Terry.
After two days running with a new SMC 9432TX card it hung with the following error messages:
At /var/log/debug:
Mar 10 16:06:46 linux kernel: eth0: Restarting the EPIC chip, Rx 3337639/3337639 Tx 3454671/3454686.
Mar 10 16:06:46 linux kernel: eth0: epic_restart() done, cmd status 000a, ctl 0512 interrupt 248000.

At console:
eth0: Transmit timeout using MII device, Tx status 0001.
eth0: Tx hung, 3454686 vs. 3454671.

It solved doing ifconfig down and then up.

> Terry Barnaby (terry@beam.demon.co.uk)
> Wed, 03 Mar 1999 11:52:36 +0000
>
>      Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
>      Next message: Andreas Steinmetz: "Network locking up with SMC EPIC/100 Ethernet cards"
>
>
> Subject: Network locking up with SMC EPIC/100 Ethernet cards
>
> On in depth driver testing it was found that the 83C171 stops running
> the transmit ring queue. There are two entries in the transmit queue with the
> ring status fields set to: 0x6003 and 0x8000. The chip will restart on
> setting the TXQUEUED bit high. Quite often the fault will not occur for some
> time (2mins) and then repeatibly fail every second for a period.
>
> I believe we have tracked down this problem. It appears to be a race hazard in
> setting the transmit ring buffers status register to setting the TXQUEUED bit.
>
....

Miguel Angel Alvarez

 | To unsubscribe, send mail to Majordomo@cesdis.gsfc.nasa.gov, and within the
 |  body of the mail, include only the text:
 |   unsubscribe this-list-name youraddress@wherever.org
 | You will be unsubscribed as speedily as possible.