kern/158156: bce driver shows "no carrier" on IBM blade (HS22 with BCM5709)

Jason Chang jsc at
Wed Jun 22 07:50:11 UTC 2011

>Number:         158156
>Category:       kern
>Synopsis:       bce driver shows "no carrier" on IBM blade (HS22 with BCM5709)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Jun 22 07:50:10 UTC 2011
>Originator:     Jason Chang
>Release:        8.2-STABLE
National Taiwan University
FreeBSD 8.2-STABLE Jun 20 amd64
My server is an IBM blade system. The model of server is HS22, network device relate info:
bce0: <Broadcom NetXtreme II BCM5709 1000Base-SX (C0)> mem 0xfa000000-0xfbffffff irq 30 at device 0.0 on pci16
miibus0: <MII bus> on bce0
brgphy0: <BCM5709S 1000/2500baseSX PHY> PHY 2 on miibus0
brgphy0:  1000baseSX-FDX, auto
The network switch is built-in in blade and model is BNT Layer 2-7 GbE Switch. In fact, it is a nortel alteon Layer 7 switch.

After making world/kernel to the latest 8.2-STABLE source, the network device no longer works. Command ifconfig always shows "no carrier". 

Update kernel source to 2011/05/22 and after.
(Revision 222159)

from Revision 222159 to Revision 217674


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