7.2-release/amd64: panic, spin lock held too long

[NAKAJI Hiroyuki]

>>>>> In <4A667469.1080805 at gmail.com> 
>>>>>	"C. C. Tang" <hiyorin at gmail.com> wrote:
> > Could that one (on i386) be related?
> > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/134584
> >

> I have no idea about it but I can tell the difference...
> My machine panic randomly rather than on shutdown and I remembered
> that it failed to write core dump. It also failed to reboot
> automatically..

I also have trouble like yours.
http://lists.freebsd.org/pipermail/freebsd-stable/2009-June/050526.html

I've heard from Attilio Rao that he had found the problem and is working
on it.

You can see Attilio's guide to collect debug informations:
http://lists.freebsd.org/pipermail/freebsd-stable/2009-June/050528.html
-- 
NAKAJI Hiroyuki