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Date: Sat, 19 Jan 2002 20:19:57 -0800 (PST)
From: Juergen <pjah@hicom.net>
To: freebsd-gnats-submit@FreeBSD.org
Subject: 3com 3c980c runs "bursty" / freezes-unfreezes
X-Send-Pr-Version: www-1.0

>Number:         34073
>Category:       misc
>Synopsis:       3com 3c980c runs "bursty" / freezes-unfreezes
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jan 19 20:20:01 PST 2002
>Closed-Date:    Sun Jun 08 10:18:03 PDT 2003
>Last-Modified:  Sun Jun 08 10:18:03 PDT 2003
>Originator:     Juergen
>Release:        4.4-Stable
>Organization:
HICom.
>Environment:
FreeBSD nsa.hicom.net 4.4-RELEASE FreeBSD 4.4-RELEASE #0: Tue Sep 18 11:57:08 PD
T 2001     murray@builder.FreeBSD.org:/usr/src/sys/compile/GENERIC  i386     
>Description:
When running a telnet session from or into the machine, it looks like there is a very noticable delay between typing CR and other characters
and when these characters are displayed at the telnet session. It's as if there is a huge network delay (there is no traffic on the network). 
When logged into the machine directly via a console, I can not detect any of these "stalls". 

I have tried a different 3com 3c980c card and the second card had the same problem. 


Here are relevant sections of my dmesg's and ifconfig: 

Copyright (c) 1992-2001 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 4.4-RELEASE #0: Tue Sep 18 11:57:08 PDT 2001
    murray@builder.FreeBSD.org:/usr/src/sys/compile/GENERIC
Timecounter "i8254"  frequency 1193182 Hz
CPU: AMD Athlon(tm) processor (1396.74-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x644  Stepping = 4
  Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PA
T,PSE36,MMX,FXSR>
  AMD Features=0xc0440000<<b18>,AMIE,DSP,3DNow!>
real memory  = 268369920 (262080K bytes)
avail memory = 256712704 (250696K bytes) 
...snip...
xl0: <3Com 3c980C Fast Etherlink XL> port 0xd000-0xd07f mem 0xe8000000-0xe800007
f irq 12 at device 8.0 on pci0
xl0: Ethernet address: 00:04:75:86:c4:8a
miibus0: <MII bus> on xl0
xlphy0: <3c905C 10/100 internal PHY> on miibus0
xlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto 
... snip ...

nsa# ifconfig xl0
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 208.245.181.68 netmask 0xfffffff8 broadcast 208.245.181.71
        inet6 fe80::204:75ff:fe86:c48a%xl0 prefixlen 64 scopeid 0x1
        ether 00:04:75:86:c4:8a
        media: Ethernet autoselect (10baseT/UTP)
        status: active 



>How-To-Repeat:
     This problem is easily repeatable. 
>Fix:
      
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback 
State-Changed-By: roam 
State-Changed-When: Mon Jan 21 02:14:06 PST 2002 
State-Changed-Why:  
Can you try updating your FreeBSD system to a 4.5-RC? 
There have been various changes on the 4.x branch since 4.4-RELEASE, 
and in particular, there have been several very large TCP performance 
fixes in December. 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=34073 

From: Peter Pentchev <roam@ringlet.net>
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: misc/34073: 3com 3c980c runs "bursty" / freezes-unfreezes
Date: Mon, 28 Jan 2002 17:13:52 +0200

 Adding this to the audit trail..
 
 G'luck,
 Peter
 
 -- 
 What would this sentence be like if it weren't self-referential?
 
 ----- Forwarded message from Heberling <pjah@hicom.net> -----
 
 From: "Heberling" <pjah@hicom.net>
 To: <roam@FreeBSD.org>
 Subject: Re: misc/34073: 3com 3c980c runs "bursty" / freezes-unfreezes
 Date: Thu, 24 Jan 2002 23:14:14 -0500
 X-Priority: 3
 X-MSMail-Priority: Normal
 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700
 
 I'm not familiar with "upgrading" to 4.5-RC from 4.4-stable.
 Will installing the Jan 27th release of 4.5  be a sufficient test?
 
 ----- End forwarded message -----

From: Peter Pentchev <roam@ringlet.net>
To: Heberling <pjah@hicom.net>
Cc: bug-followup@FreeBSD.org
Subject: Re: misc/34073: 3com 3c980c runs "bursty" / freezes-unfreezes
Date: Mon, 28 Jan 2002 17:20:21 +0200

 On Thu, Jan 24, 2002 at 11:14:14PM -0500, Heberling wrote:
 > I'm not familiar with "upgrading" to 4.5-RC from 4.4-stable.
 > Will installing the Jan 27th release of 4.5  be a sufficient test?
 
 Yes, testing against 4.5-RELEASE would be sufficient.
 
 The process of updating your FreeBSD system to a -STABLE snapshot
 is described in sections 19.2 and 19.3 of the FreeBSD Handbook
 at http://www.FreeBSD.org/handbook/synching.html; still, if you
 are not acquainted with it and have never done it before, it might
 be much simpler and easier to just upgrade to 4.5-RELEASE.
 
 G'luck,
 Peter
 
 -- 
 When you are not looking at it, this sentence is in Spanish.

From: Giorgos Keramidas <keramida@FreeBSD.org>
To: Juergen <pjah@hicom.net>
Cc: bug-followup@FreeBSD.org
Subject: Re: misc/34073: 3com 3c980c runs "bursty" / freezes-unfreezes
Date: Mon, 26 Aug 2002 06:42:25 +0300

 > State-Changed-From-To: open->feedback
 > State-Changed-By: roam
 
 > Can you try updating your FreeBSD system to a 4.5-RC?
 > There have been various changes on the 4.x branch since 4.4-RELEASE,
 > and in particular, there have been several very large TCP
 > performance fixes in December.
 
 Juergen,
 any news about this?
 
 Have you tried installing any newer releases?
 

From: Giorgos Keramidas <keramida@FreeBSD.org>
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: misc/34073: 3com 3c980c runs "bursty" / freezes-unfreezes
Date: Mon, 26 Aug 2002 20:09:01 +0300

 Adding to the audit trail, Juergen's reply.
 |
 | On 2002-08-26 06:52 +0000, Juergen Heberling wrote:
 | > Giorgos,
 | > I know its hard to believe, but I have not had a chance to install a
 | > newer version of FreeBDS since this problem occured.
 | > Thank you for following up, however.
 | >
 | > Juergen
 |

From: "Dimitris  sehh  Michelinakis" <dimitris@michelinakis.gr>
To: freebsd-gnats-submit@FreeBSD.org, pjah@hicom.net
Cc:  
Subject: Re: misc/34073: 3com 3c980c runs "bursty" / freezes-unfreezes
Date: Wed, 23 Oct 2002 11:51:29 +0200

 This is a known problem with the 3Com driver.
 
 This bug is a duplicate of:
 http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/18558
 
 The problem is that receiving is dead slow, even though sending is
 running at full speed.
 
 The problem can be partialy fixed if you lower the receive buffers,
 but that won't eliminate it completely. (instead of getting 200kb/s
 you'll get 1mb/s etc).
 
 I'm running a 3Com 3c905-TX Fast Etherlink XL under fbsd 4.7-R,
 which is connected to a Netgear Switch, 100mbit full-duplex.
 
 
 -- 
 Dimitris 'sehh' Michelinakis
State-Changed-From-To: feedback->closed 
State-Changed-By: ceri 
State-Changed-When: Sun Jun 8 10:17:21 PDT 2003 
State-Changed-Why:  
Duplicate of kern/18558; this PR is referenced therein. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=34073 
>Unformatted:
