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Date:      Wed, 1 Aug 2001 13:33:19 -0700 (PDT)
From:      Matthew Jacob <mjacob@feral.com>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        Matt Jacob <mjacob@FreeBSD.org>, cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org
Subject:   RE: cvs commit: src/sys/alpha/alpha clock.c
Message-ID:  <Pine.BSF.4.21.0108011333120.19703-100000@beppo>
In-Reply-To: <XFMail.010801132308.jhb@FreeBSD.org>

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Oh- okay. I misunderstood. Will do.


On Wed, 1 Aug 2001, John Baldwin wrote:

> 
> On 01-Aug-01 Matt Jacob wrote:
> > mjacob      2001/08/01 12:40:11 PDT
> > 
> >   Modified files:
> >     sys/alpha/alpha      clock.c 
> >   Log:
> >   Don't initialize a clock twice (it's not a function of number of
> >   cpus).
> 
> Erm, that's not what that is there for.  It is there because the clock is not
> safe for SMP use.  I.e., we only use that timecounter in a UP machine.  We
> don't call cpu_initclocks() multiple times.  However, on the alpha we always
> call hardclock() (and thus tc_windup()) on the boot CPU, thus it _might_ be
> safe for us to use this timecounter on SMP systems.  In any case,
> cpu_initclocks() is only called once, so the 'once' variable is bogus.  Please
> revert that part for now.
> 
> -- 
> 
> John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
> PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
> "Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/
> 


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