amd64/144084: A system with high load,but the cpu usage is 0%

[Changming Sun]

>Number:         144084
>Category:       amd64
>Synopsis:       A system with high load,but the cpu usage is 0%
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Feb 19 01:40:02 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Changming Sun
>Release:        FreeBSD 9.0
>Organization:
wanmei.inc(NASDAQ:PWRD)
>Environment:
FreeBSD fb.localdomain 9.0-CURRENT FreeBSD 9.0-CURRENT #14 r204023M: Thu Feb 18 11:10:07 UTC 2010     root at fb.localdomain:/usr/obj/usr/src/sys/MYK  amd64
>Description:
the below message is from "top":
--------------------------------------------------------
last pid: 48953;  load averages:  7.73,  5.20,  3.07  up 0+00:27:09    09:34:06
169 processes: 10 running, 157 sleeping, 2 zombie
CPU:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0% idle
Mem: 387M Active, 196M Inact, 1294M Wired, 18M Cache, 784K Buf, 1957M Free
Swap: 
-------------------------------------------------------- 


>How-To-Repeat:
sorry I don't know
>Fix:


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