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From: Sean Bruno <seanbru@yahoo-inc.com>
To: John Baldwin <jhb@freebsd.org>
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Date: Thu, 02 Aug 2012 16:01:28 -0700
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Cc: "attilio@freebsd.org" <attilio@freebsd.org>,
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Subject: Re: [stable 9] panic on reboot: ipmi_wd_event()
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On Thu, 2012-08-02 at 13:34 -0700, John Baldwin wrote:
> On Wednesday, August 01, 2012 6:48:48 pm Sean Bruno wrote:
> > On Wed, 2012-08-01 at 05:53 -0700, John Baldwin wrote:
> > > Index: vfs_subr.c
> > > ===================================================================
> > > --- vfs_subr.c  (revision 238969)
> > > +++ vfs_subr.c  (working copy)
> > > @@ -1868,8 +1868,11 @@ sched_sync(void)
> > >                                 continue;
> > >                         }
> > >  
> > > -                       if (first_printf == 0)
> > > +                       if (first_printf == 0) {
> > > +                               mtx_unlock(&sync_mtx);
> > >                                 wdog_kern_pat(WD_LASTVAL);
> > > +                               mtx_lock(&sync_mtx);
> > > +                       }
> > >  
> > >                 }
> > >                 if (!LIST_EMPTY(gslp)) {
> > > 
> > > 
> > > -- 
> > > John Baldwin 
> > 
> > This definitely makes the panic go away on reboot.
> 
> Do you have watchdogd enabled at all?
> 

No, we never had it enabled.

Sean