linux-kernel - Re: -rt7 announcement? (was Re: 2.6.18-rt6)

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Date:	Mon, 23 Oct 2006 11:44:40 -0700
From:	"Mark Knecht" <markknecht@...il.com>
To:	tglx@...utronix.de
Cc:	"Lee Revell" <rlrevell@...-job.com>, "Ingo Molnar" <mingo@...e.hu>,
	linux-kernel@...r.kernel.org, "John Stultz" <johnstul@...ibm.com>,
	"Paul E. McKenney" <paulmck@...ibm.com>,
	"Dipankar Sarma" <dipankar@...ibm.com>,
	"Arjan van de Ven" <arjan@...radead.org>,
	"Mike Galbraith" <efault@....de>,
	"Daniel Walker" <dwalker@...sta.com>,
	"Manish Lachwani" <mlachwani@...sta.com>, bastien.dugue@...l.net
Subject: Re: -rt7 announcement? (was Re: 2.6.18-rt6)

On 10/23/06, Thomas Gleixner <tglx@...utronix.de> wrote:
> On Mon, 2006-10-23 at 12:34 -0400, Lee Revell wrote:
> > On Fri, 2006-10-20 at 11:00 -0400, Lee Revell wrote:
> > > On Wed, 2006-10-18 at 10:39 +0200, Ingo Molnar wrote:
> > > > i've released the 2.6.18-rt6 tree, which can be downloaded from the
> > > > usual place:
> > > >
> > > >   http://redhat.com/~mingo/realtime-preempt/
> > >
> > > This does not work here.  It boots but then wants to fsck my disks, and
> > > dies with a sig 11 in fsck.ext3.  This is 100% reproducible and booting
> > > 2.6.18-rt5 works and does not want to fsck the disks.
> >
> > I see that -rt7 is posted.  The patch is a huge diff from -rt6.  Where
> > are the release notes?
>
> Basically we merged the latest hrt-dyntick queue into -rt.
>
>         tglx

Hi Thomas,
   Some differences/questions between 2.6.18-rt6 and 2.6.18-rt7:

   In 2.6.18-rt6, using make menuconfig, there were options on the
front page for HRT Support. This seems to have moved under Processor
Type with 2.6.18-rt7. Was that on purpose?

   In 2.6.18-rt6 I turned on HRT support, left 1000 nanoseconds for
the timing, but did not enable dynamic ticks since I wasn't sure it
was OK on AMD64. Should I be using DynTicks with an AMD64 single
processor? With a dual-processor?

   On 2.6.18-rt7 it seems there is no time value setting or it's been
moved somewhere I haven't found. does that 1000 nanosecond time
setting still apply?

Thanks,
Mark
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