kern/69879: sk0 hangs moving lots of data

Clint Olsen clint at
Sun Aug 1 10:40:24 PDT 2004

>Number:         69879
>Category:       kern
>Synopsis:       sk0 hangs moving lots of data
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Aug 01 17:40:23 GMT 2004
>Originator:     Clint Olsen
>Release:        FreeBSD 5.2.1-RELEASE i386
System: FreeBSD 5.2.1-RELEASE FreeBSD 5.2.1-RELEASE #0: Mon Feb 23 20:45:55 GMT 2004 root at i386
    skc0: Yukon Gigabit Ethernet 10/100/1000Base-T Adapter
    sk0: <Marvell Semiconductor, Inc. Yukon> on skc0
    sk0: Ethernet address: 00:0e:a6:96:8f:72
    miibus0: <MII bus> on sk0
    e1000phy0: <Marvell 88E1000 Gigabit PHY> on miibus0
    e1000phy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX-FDX, auto
    Network (sk0) hangs when moving a large amount of data across the
    interface.  What I'm looking for is help on how to track down whether
    this is a hardware or a software problem.
    Using ssh and tar, I copied over about 2G of data from one FreeBSD box
    to another via:

    source% tar cf - . | ssh target "tar xvf - -p --atime-preserve"

    Eventually the network hangs.
    Currently when the network hangs, I am able to take the network down
    and immediately bring it back up using 'ifconfig sk0 down; ifconfig sk0

More information about the freebsd-bugs mailing list