kern/60285: em0 was reported about watchdog timeout

[Kensaku Masuda]

>Number:         60285
>Category:       kern
>Synopsis:       em0 was reported about watchdog timeout
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Dec 15 17:50:14 PST 2003
>Closed-Date:
>Last-Modified:
>Originator:     Kensaku Masuda
>Release:        FreeBSD 5.2-current i386
>Organization:
>Environment:
System: FreeBSD omoikane.greg.jp 5.2-current FreeBSD 5.2-current #0: Mon Dec 1 20:59:25 JST 2003 root at omoikane.greg.jp:/a/uzume.greg.rim.or.jp/export/src/system-current/src/sys/i386/compile/OMOIKANE i386


>Description:
	Boot new kernel(preloading acpi.ko), work fine in device detection. But after ifconfig, ether net driver em0 reported fllowing message:
Dec 15 22:19:38 omoikane kernel: cd0 at ata1 bus 0 target 0 lun 0
Dec 15 22:19:38 omoikane kernel: cd0: <HL-DT-ST DVDRAM GSA-4040B A105> Removable CD-ROM SCSI-0 device
Dec 15 22:19:39 omoikane kernel: cd0: 16.000MB/s transfers
Dec 15 22:19:39 omoikane kernel: cd0: cd present [1 x 2048 byte records]
Dec 15 22:19:39 omoikane kernel: Mounting root from ufs:/dev/ad0s2a
Dec 15 22:19:39 omoikane kernel: em0: Link is up 100 Mbps Full Duplex
Dec 15 22:19:39 omoikane savecore: no dumps found
Dec 15 22:19:52 omoikane kernel: em0: watchdog timeout -- resetting
Dec 15 22:19:54 omoikane kernel: em0: Link is up 100 Mbps Full Duplex
Dec 15 22:20:02 omoikane kernel: em0: watchdog timeout -- resetting
Dec 15 22:20:04 omoikane kernel: em0: Link is up 100 Mbps Full Duplex
Dec 15 22:20:14 omoikane kernel: em0: watchdog timeout -- resetting
Dec 15 22:20:16 omoikane kernel: em0: Link is up 100 Mbps Full Duplex
Dec 15 22:20:26 omoikane kernel: em0: watchdog timeout -- resetting

>How-To-Repeat:
	Only config -> make depend -> make -> make install, and reboot.

>Fix:


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