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Date:      Fri, 6 Aug 2004 13:46:19 -0400
From:      John Baldwin <jhb@FreeBSD.org>
To:        Scott Long <scottl@FreeBSD.org>
Cc:        cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/kern kern_switch.c
Message-ID:  <200408061340.15480.jhb@FreeBSD.org>
In-Reply-To: <4113AC45.1050003@freebsd.org>
References:  <200408061549.i76Fni3I019460@repoman.freebsd.org> <4113AC45.1050003@freebsd.org>

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On Friday 06 August 2004 12:05 pm, Scott Long wrote:
> John Baldwin wrote:
> > jhb         2004-08-06 15:49:44 UTC
> >
> >   FreeBSD src repository
> >
> >   Modified files:
> >     sys/kern             kern_switch.c
> >   Log:
> >   Don't scare users with a warning about preemption being off when it
> > isn't yet safe to have on by default.
> >
> >   Revision  Changes    Path
> >   1.75      +2 -0      src/sys/kern/kern_switch.c
>
> I was actually hoping to leave this on as a reminder to get us to fix
> the underlying problems, and only turning it off if absolutely necessary
> for the release.  Sorry that I didn't mention this sooner.

Hmm, it seems at least one person on current@ was already confused by this and 
asking if he should turn on FULL_PREEMPTION instead.  We probably don't want 
people doing that. :-P  Also, believe me that I haven't forgotten about the 
preemption stability problems.  I just need to reproduce these problems on 
machines with a serial console.  The only machine I can reproduce hangs on so 
far is my laptop which has no serial port. :(

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org



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