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Tulip (21140) locked up.

To: "netdev@xxxxxxxxxxx" <netdev@xxxxxxxxxxx>, linux-net <linux-net@xxxxxxxxxxxxxxxx>, Donald Becker <becker@xxxxxxxxx>
Subject: Tulip (21140) locked up.
From: Ben Greear <greearb@xxxxxxxxxxxxxxx>
Date: Sun, 11 Jun 2000 18:00:54 -0700
Organization: Candela Technologies
Sender: owner-netdev@xxxxxxxxxxx
I'm running with two ZNYX 4-port NICs back-to-back with cross-over
cables.  I was running at about 28Mbps, full duplex.  I then started
up some more traffic, attempting to push it to about 35Mbps.

Looks like I locked the NICs on both sides, such that nothing is being
sent.

The interesting thing is that the link lights blink on/off about
every second, and there is a blip on the 'activity' LED.  This
coresponds with the log messages.

Manually bouncing the links with ip set link ethX down, ip set link ethX up
seems to 'fix' the problem.

Here's a trace from the logs of one machine...the other looks very similar:

Jun 13 20:17:11 card1 kernel: tulip.c:v0.91g-ppc 7/16/99 
becker@xxxxxxxxxxxxxxxxxxxx 
Jun 13 20:17:11 card1 kernel: eth0: Digital DS21143 Tulip rev 65 at 0xc000, 
00:C0:95:E2:4C:0C, IRQ 12. 
Jun 13 20:17:11 card1 kernel: eth0:  EEPROM default media type Autosense. 
Jun 13 20:17:11 card1 kernel: eth0:  Index #0 - Media 10baseT (#0) described by 
a 21142 Serial PHY (2) block. 
Jun 13 20:17:11 card1 kernel: eth0:  Index #1 - Media 10baseT-FD (#4) described 
by a 21142 Serial PHY (2) block. 
Jun 13 20:17:11 card1 kernel: eth0:  Index #2 - Media 100baseTx (#3) described 
by a 21143 SYM PHY (4) block. 
Jun 13 20:17:11 card1 kernel: eth0:  Index #3 - Media 100baseTx-FD (#5) 
described by a 21143 SYM PHY (4) block. 
Jun 13 20:17:11 card1 kernel: eth1: Digital DS21143 Tulip rev 65 at 0xc400, 
00:C0:95:E2:4C:0D, IRQ 10. 
Jun 13 20:17:11 card1 kernel: eth1:  EEPROM default media type Autosense. 
Jun 13 20:17:11 card1 kernel: eth1:  Index #0 - Media 10baseT (#0) described by 
a 21142 Serial PHY (2) block. 
Jun 13 20:17:11 card1 kernel: eth1:  Index #1 - Media 10baseT-FD (#4) described 
by a 21142 Serial PHY (2) block. 
Jun 13 20:17:11 card1 kernel: eth1:  Index #2 - Media 100baseTx (#3) described 
by a 21143 SYM PHY (4) block. 
Jun 13 20:17:11 card1 kernel: eth1:  Index #3 - Media 100baseTx-FD (#5) 
described by a 21143 SYM PHY (4) block. 
Jun 13 20:17:11 card1 kernel: eth2: Digital DS21143 Tulip rev 65 at 0xc800, 
00:C0:95:E2:4C:0E, IRQ 11. 
Jun 13 20:17:11 card1 kernel: eth2:  EEPROM default media type Autosense. 
Jun 13 20:17:11 card1 kernel: eth2:  Index #0 - Media 10baseT (#0) described by 
a 21142 Serial PHY (2) block. 
Jun 13 20:17:11 card1 kernel: eth2:  Index #1 - Media 10baseT-FD (#4) described 
by a 21142 Serial PHY (2) block. 
Jun 13 20:17:11 card1 kernel: eth2:  Index #2 - Media 100baseTx (#3) described 
by a 21143 SYM PHY (4) block. 
Jun 13 20:17:11 card1 kernel: eth2:  Index #3 - Media 100baseTx-FD (#5) 
described by a 21143 SYM PHY (4) block. 
Jun 13 20:17:11 card1 kernel: eth3: Digital DS21143 Tulip rev 65 at 0xcc00, 
00:C0:95:E2:4C:0F, IRQ 9. 
Jun 13 20:17:11 card1 kernel: eth3:  EEPROM default media type Autosense. 
Jun 13 20:17:11 card1 kernel: eth3:  Index #0 - Media 10baseT (#0) described by 
a 21142 Serial PHY (2) block. 
Jun 13 20:17:11 card1 kernel: eth3:  Index #1 - Media 10baseT-FD (#4) described 
by a 21142 Serial PHY (2) block. 
Jun 13 20:17:11 card1 kernel: eth3:  Index #2 - Media 100baseTx (#3) described 
by a 21143 SYM PHY (4) block. 
Jun 13 20:17:11 card1 kernel: eth3:  Index #3 - Media 100baseTx-FD (#5) 
described by a 21143 SYM PHY (4) block. 
Jun 13 20:17:11 card1 kernel: rtl8139.c:v1.07 5/6/99 Donald Becker 
http://cesdis.gsfc.nasa.gov/linux/drivers/rtl8
139.html 
Jun 13 20:17:11 card1 kernel: eth4: RealTek RTL8139 Fast Ethernet at 0xd000, 
IRQ 11, 00:48:54:66:68:68. 
Jun 13 20:17:11 card1 kernel: Sending BOOTP requests.... OK 

.......

Jun 13 22:10:04 card1 kernel: eth1: transmit timed out, switching to 10baseT-FD 
media. 
Jun 13 22:10:10 card1 kernel: eth1: Tx hung, 1261852 vs. 1261837. 
Jun 13 22:10:10 card1 kernel: eth1: 21140 transmit timed out, status f0360000, 
SIA 000010c6 ffff0001 fffbffff 8ff5c000, resetting... 
Jun 13 22:10:10 card1 kernel: eth1: transmit timed out, switching to 
100baseTx-FD media. 
Jun 13 22:16:00 card1 kernel: eth2: Tx hung, 1436469 vs. 1436454. 
Jun 13 22:16:00 card1 kernel: eth2: 21140 transmit timed out, status f0360000, 
SIA 000010c6 ffff0001 fffbffff 8ff5c000, resetting... 
Jun 13 22:16:00 card1 kernel: eth2: transmit timed out, switching to 10baseT-FD 
media. 
Jun 13 22:16:06 card1 kernel: eth2: Tx hung, 1436469 vs. 1436454. 


I'm going to go dig up that patch that someone said fixed this kind
of thing, and others said should never be used....

Can anyone tell me why it locks up in the first place?  I'm trying
to make some testing equipment, and it won't really do to have it
lock up!!

Let me know if I can offer more information that might help someone fix
this for good.

--Ben

-- 
Ben Greear (greearb@xxxxxxxxxxxxxxx)  http://www.candelatech.com
Author of ScryMUD:  scry.wanfear.com 4444        (Released under GPL)
http://scry.wanfear.com               http://scry.wanfear.com/~greear

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