Bug 165026

Summary:	DFE-580TX cannot hold up 100BT link with some peers
Product:	[Fedora] Fedora	Reporter:	Andrew Meredith <andrew>
Component:	kernel	Assignee:	John W. Linville <linville>
Status:	CLOSED CANTFIX	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3	CC:	davej, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-08-30 00:14:49 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Andrew Meredith 2005-08-03 17:49:03 UTC

Description of problem:

The DFE-580TX (Rev A3) 4 port NIC exhibits selective instability when connected
to different peers. Switches tend to be ok, but connecting other hardware will
cause the connection to flutter. Inserting a switch inline, or dropping the link
speed to 10FD cures the problem and allows the card to function at (the
relevant) full speed.

ethtool and mii-tool show no problems.

running:

  # ethtool -s ethX autoneg off
  # ethtool -s ethX speed 10

to drop the link speed to 10BT full duplex stabilises the link.

Version-Release number of selected component (if applicable):

  kernel-2.6.11-1.27_FC3

How reproducible:

  Every time.

Kernel module used:

  /lib/modules/2.6.11-1.27_FC3/kernel/drivers/net/sundance.ko

Comment 1 Dave Jones 2005-08-26 07:02:30 UTC

Please retry with the latest errata kernel.

Comment 2 Andrew Meredith 2005-08-29 20:07:46 UTC

I have had to scrap this card along with a number of other semi-functional DLink
products in order to get the system to work. I am therefore no longer in a
position to test for fixes I'm afraid.