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Date: Sun, 12 Mar 2006 17:36:58 GMT
From: Stephen Trovato <strovato@cdeducation.org>
To: freebsd-gnats-submit@FreeBSD.org
Subject: poor network performance after promiscuous mode is enabled & disabled
X-Send-Pr-Version: www-2.3

>Number:         94390
>Category:       kern
>Synopsis:       [vr] poor network performance after promiscuous mode is enabled & disabled
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    vwe
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Mar 12 17:40:50 GMT 2006
>Closed-Date:    Sun Aug 08 21:12:24 UTC 2010
>Last-Modified:  Sun Aug 08 21:12:24 UTC 2010
>Originator:     Stephen Trovato
>Release:        6.0-RELEASE
>Organization:
Diocese of Columbus Dept for Ed
>Environment:
FreeBSD serenity.localdomain 6.0-RELEASE FreeBSD 6.0-RELEASE #0: Wed Nov  2 19:07:38 UTC 2005     root@rat.samsco.home:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
Enabling promiscuous mode causes a permanent network performance drop even after it is turned off.  

Hardware description:
K8M800-M7A motherboard
Sempron 2800+ w/amd64
embedded VIA 10/100 (see below)

dmesg output:
vr0: <VIA VT6102 Rhine II 10/100BaseTX> port 0xdc00-0xdcff mem 0xf6001000-0xf60010ff irq 23 at device 18.0 on pci0
miibus0: <MII bus> on vr0
rlphy0: <RTL8201L 10/100 media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
vr0: Ethernet address: 00:14:2a:f5:3a:03

ifconfig output:
vr0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet6 fe80::214:2aff:fef5:3a03%vr0 prefixlen 64 scopeid 0x1 
        inet X.X.X.131 netmask 0xffffff00 broadcast X.X.X.255
        ether 00:14:2a:f5:3a:03
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active

>How-To-Repeat:
Steps to reproduce:

1) ifconfig vr0 promisc
2) ifconfig vr0 -promisc
3) Network performance is now half of what it was

>Fix:
Bringing the interface down and back up with ifconfig does not resolve the problem, but a reboot does.
>Release-Note:
>Audit-Trail:

From: Volker <volker@vwsoft.com>
To: bug-followup@FreeBSD.org, strovato@cdeducation.org
Cc:  
Subject: Re: kern/94390: [vr] poor network performance after promiscuous mode
 is enabled &amp; disabled
Date: Sun, 09 Mar 2008 22:57:23 +0100

 Stephen,
 
 I'm sorry seeing your problem report untouched for quite some time now.
 
 Can you please report back if your problem is still valid even with a
 more recent release of FreeBSD (6.3/7.0)?
 
 If it's still a problem, I'm wondering if you can check Pyun's reworked
 vr driver and provide him feedback? For more information about his
 recent work, please have a look at PR kern/109477 which contains URLs
 for patches.
 
 Please give us feedback if your problem is not an issue anymore so we
 can go ahead and close this ticket.
 
 Thanks for reporting!
 
 http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/109477
State-Changed-From-To: open->feedback 
State-Changed-By: vwe 
State-Changed-When: Sun Mar 9 22:01:01 UTC 2008 
State-Changed-Why:  

Note that submitter has been asked for feedback. 


Responsible-Changed-From-To: freebsd-bugs->vwe 
Responsible-Changed-By: vwe 
Responsible-Changed-When: Sun Mar 9 22:01:01 UTC 2008 
Responsible-Changed-Why:  

track 

http://www.freebsd.org/cgi/query-pr.cgi?pr=94390 
State-Changed-From-To: feedback->suspended 
State-Changed-By: vwe 
State-Changed-When: Sat May 10 17:43:26 UTC 2008 
State-Changed-Why:  

no feedback received for quite some time - suspend 
to be closed after 6.[012] EOL date (soon!) 

http://www.freebsd.org/cgi/query-pr.cgi?pr=94390 
State-Changed-From-To: suspended->closed 
State-Changed-By: vwe 
State-Changed-When: Sun Aug 8 21:11:39 UTC 2010 
State-Changed-Why:  
interesting issue but old and for an unsupported release 

http://www.freebsd.org/cgi/query-pr.cgi?pr=94390 
>Unformatted:
