arm pmap locking

[John-Mark Gurney]

Alan Cox wrote this message on Tue, Sep 25, 2012 at 10:50 -0500:
> On 09/16/2012 22:33, John-Mark Gurney wrote:
> >Still getting the LOR..  It always right after boot..  after trying
> >to mount root and warning about no time-of-day clock, but before setting
> >hostuuid..
> 
> Could you please try the attached patch on your armv6 BEAGLEBONE?  My 
> hope is that this addresses the root cause of the LORs involving the 
> pmap lock.

Good news...  That patch boots and doesn't have the LOR...

FreeBSD 10.0-CURRENT #10 r240947M: Mon Sep 24 17:01:11 PDT 2012
    jmg at pcbsd-779:/usr/obj/arm.armv6/usr/src.HEAD/sys/helium arm

[...]

Trying to mount root from ufs:mmcsd0s2 []...
warning: no time-of-day clock registered, system time will not be set accurately
Setting hostuuid: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.

Thanks for your work tracking it down!

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."