Date: Thu, 7 Mar 2002 13:58:48 -0500 From: The Anarcat <anarcat@anarcat.dyndns.org> To: FreeBSD-gnats-submit@freebsd.org Cc: anarcat@anarcat.dyndns.org Subject: kern/35640: heavy collision rate hangs vr network interface Message-ID: <20020307185751.1682818C8@khan.anarcat.dyndns.org>
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>Number: 35640
>Category: kern
>Synopsis: heavy collision rate hangs vr network interface
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Mar 07 11:00:02 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: The Anarcat
>Release: FreeBSD 4.5-STABLE i386
>Organization:
Nada, Inc
>Environment:
System: FreeBSD lenny.anarcat.dyndns.org 4.5-STABLE FreeBSD 4.5-STABLE #0: Mon Mar 4 12:16:06 EST 2002 anarcat@lenny.anarcat.dyndns.org:/usr/src/sys/compile/LENNY i386
10 baseT/UTP network, 2 machines connected through a 4 port Hub.
>Description:
I can reproducibly hang my 4.5-STABLE server when FTP uploading at
around 1Mb/s.
The collision rate is extremely high for some reason,
input (Total) output
packets errs bytes packets errs bytes colls
698 0 1053348 512 0 30756 417
After around 30 seconds of full use of the bandwidth, all network
connections hang, and I have to reset the interface (ifconfig down/up)
in order to bring back network capabilities.
>How-To-Repeat:
More info on the hardware:
Server side:
vr0: <VIA VT6102 Rhine II 10/100BaseTX> port 0x6600-0x66ff mem 0xe1001000-0xe10010ff irq 10 at device 11.0 on pci0
Client side:
rl0: <D-Link DFE-530TX+ 10/100BaseTX> port 0x9400-0x94ff mem 0xd6800000-0xd68000ff irq 9 at device 9.0 on pci0
Base system ftp clients and servers.
Simply ftp upload around 15-20 Mbytes of data.
>Fix:
To temporarly unhang the machine, ifconfig down/up the guilty interface.
Unknown long-term fix.
>Release-Note:
>Audit-Trail:
>Unformatted:
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