From owner-freebsd-current@freebsd.org  Tue Jan 17 17:47:23 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>
 <3466870.vFI8cjabAc@ralph.baldwin.cx>
 <264c5dd8-d82d-3326-7de5-96b0bb96ac01@selasky.org>
 <2215603.KuBd8pM5Pm@ralph.baldwin.cx>
Cc: FreeBSD Current <freebsd-current@freebsd.org>,
 Konstantin Belousov <kib@freebsd.org>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <17c85624-9a8b-183b-7e3b-0169b0c53a39@selasky.org>
Date: Tue, 17 Jan 2017 18:46:40 +0100
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On 01/17/17 16:50, John Baldwin wrote:
> Index: kern_clocksource.c
> ===================================================================
> --- kern_clocksource.c	(revision 312301)
> +++ kern_clocksource.c	(working copy)
> @@ -503,7 +503,12 @@ configtimer(int start)
>  				state->nextevent = SBT_MAX;
>  			else
>  #endif
> +			if (next < state->nextcall)
>  				state->nextevent = next;
> +			else if (state->nextcall < now)
> +				state->nextevent = now;
> +			else
> +				state->nextevent = state->nextcall;
>  			if (periodic)
>  				state->nexttick = next;
>  			else
> @@ -511,8 +516,6 @@ configtimer(int start)
>  			state->nexthard = next;
>  			state->nextstat = next;
>  			state->nextprof = next;
> -			state->nextcall = next;
> -			state->nextcallopt = next;
>  			hardclock_sync(cpu);
>  		}
>  		busy = 0;

This patch makes it worse. Now I don't even reach the login prompt.

--HPS