i386/121918: reboot fails with panic with multiprocessor system on 7.0-release

[Csaba Banhalmi]

>Number:         121918
>Category:       i386
>Synopsis:       reboot fails with panic with multiprocessor system on 7.0-release
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Mar 20 16:10:02 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Csaba Banhalmi
>Release:        7.0
>Organization:
>Environment:
FreeBSD ter.hu 7.0-RELEASE FreeBSD 7.0-RELEASE #1: Wed Mar 19 11:08:37 CET 2008     josh at ter.hu:/usr/obj/usr/src/sys/TerIndex  i386
>Description:
After I upgraded some of my systems to 7.0-RELEASE I found that 3 from 5 reboots fails on my multiprocessor systems..
the error is:
spin lock 0xc077b980 (sched lock) held by 0xc2980000 (tid 100000) too long
panic: spin lock held too long
cpuid = 0

>How-To-Repeat:

>Fix:


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