From owner-freebsd-current@freebsd.org  Wed Jan 18 07:54:40 2017
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Subject: Re: Strange issue after early AP startup
To: John Baldwin <jhb@freebsd.org>
References: <b9c53237-4b1a-a140-f692-bf5837060b18@selasky.org>
 <1484682389.86335.166.camel@freebsd.org>
 <11f27a15-f9bc-8988-a17e-78aeff1745fb@selasky.org>
 <3558195.Ack1AKBXSB@ralph.baldwin.cx>
Cc: Ian Lepore <ian@freebsd.org>,
 FreeBSD Current <freebsd-current@freebsd.org>,
 Konstantin Belousov <kib@freebsd.org>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <dc54eba5-cf88-dfc8-318d-bfc06c750fb4@selasky.org>
Date: Wed, 18 Jan 2017 08:54:04 +0100
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Hi,

On 01/18/17 02:18, John Baldwin wrote:
> Also, I think you could
> set nextcallopt to 'now' rather than 'now + 1'.

There is a check in loadtimer() if next == now, and then the event timer 
is not started ??

>         } else {
>                 new = getnextevent();
>                 eq = (new == *next);
>                 CTR4(KTR_SPARE2, "load at %d:    next %d.%08x eq %d",
>                     curcpu, (int)(new >> 32), (u_int)(new & 0xffffffff), eq);
>                 if (!eq) {
>                         *next = new;
>                         et_start(timer, new - now, 0);
>                 }
>         }


--HPS