Bug 27792

Summary:	Sometimes network stops to work (pcmcia 3com 3c575)
Product:	[Retired] Red Hat Linux	Reporter:	G. Bersano <giorgio.bersano>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brock Organ <borgan>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.2
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2004-09-30 15:38:55 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 G. Bersano 2001-02-15 13:19:22 UTC

From Bugzilla Helper:
User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.2.17-14 i686)


Sometimes my ethernet connection freezes, apparently because of network
load but not sure. Compaq Armada E500, pcmcia 3Com 3CCFE575CT Tornado
CardBus, 100 Mb/s connection, kernel 2.2.17-14. Problem was really serious
until kernel 2.2.16-21, I hoped 2.2.17-14 could have the solution. 
After upgrade things got better but not solved.
When network stop functioning I get RX-OVR's and TX-ERR's (as a sample an
output from "netstat -ip":

Iface   MTU Met    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR
Flg
eth0   1500   0    11279      0      0    895     1580     63      0      0
BRU

ouput of "dmesg" (sample)
eth0: Tx Ring full, refusing to send buffer.
eth0: transmit timed out, tx_status 00 status e000.
  diagnostics: net 0ce0 media a800 dma 000000a0.
  Flags; bus-master 1, full 1; dirty 1579 current 1589.
  Transmit list 06134ab0 vs. c6134ab0.
  0: @c6134a00  length 80000042 status 80000042
  1: @c6134a10  length 800001cf status 800001cf
  2: @c6134a20  length 800001cf status 800001cf
  3: @c6134a30  length 800001cf status 800001cf
.... (snip)....
  14: @c6134ae0  length 80000042 status 80000042
  15: @c6134af0  length 800001cf status 800001cf
eth0: Resetting the Tx ring pointer.

Returns to life disabling and enabling pcmcia (/etc/rc.d/init/pcmcia
restart).

Reproducible: Couldn't Reproduce
Steps to Reproduce:
Actually it reproduces by itself, no control over it

Comment 1 Bugzilla owner 2004-09-30 15:38:55 UTC

Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
persists.

The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, 
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/