i386/132669: 3c905-TX send DUP! in reply on ping (sometime)

[Alexander Kirpa]

>Number:         132669
>Category:       i386
>Synopsis:       3c905-TX send DUP! in reply on ping (sometime)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Mar 15 17:50:00 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Alexander Kirpa
>Release:        7.0
>Organization:
>Environment:
FreeBSD c700.homenet 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Oct  5 17:37:15 EEST 2008     ankx at c700.homenet:/usr/obj/usr/src/sys/C700MAIN081005  i386

Kernel recompile with CFLAGS= -O3 -pipe -mfpmath=sse -msse -mmmx -march=pentium3 -mtune=pentium3 -fno-strict-aliasing
>Description:
xl interface send sometime duplicate reply on icmp ping request. 1-10 DUP! per hour on 100BaseT FullDuplex. In 10BaseT halfduplex problem not found and possible not exist.
Hardware:
Mar  5 08:22:22 c700 kernel: xl1: <3Com 3c905-TX Fast Etherlink XL> port 0xe000-0xe03f irq 11 at device 16.0 on pci0
Mar  5 08:22:22 c700 kernel: miibus1: <MII bus> on xl1
Mar  5 08:22:22 c700 kernel: nsphy0: <DP83840 10/100 media interface> PHY 24 on miibus1
Mar  5 08:22:22 c700 kernel: nsphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
Mar  5 08:22:22 c700 kernel: xl1: Ethernet address: 00:60:97:72:4f:7e
Mar  5 08:22:22 c700 kernel: xl1: [ITHREAD]
>How-To-Repeat:
ping on interface with '3Com 3c905-TX' board.
tcpdump on 'affected' system do not detect problem.
For detect problem use tcpdump or equivalence on external system.
>Fix:
Problem not exist in 10BaseT halfduplex mode.

>Release-Note:
>Audit-Trail:
>Unformatted: