linux-kernel - Re: 2.6.24-rc2-rt1

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Date:	Thu, 15 Nov 2007 20:42:10 -0800
From:	"Mark Knecht" <markknecht@...il.com>
To:	"Steven Rostedt" <rostedt@...dmis.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	RT <linux-rt-users@...r.kernel.org>,
	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Gregory Haskins" <ghaskins@...ell.com>,
	"Peter Zijlstra" <a.p.zijlstra@...llo.nl>,
	"Daniel Walker" <dwalker@...sta.com>,
	"Paul E. McKenney" <paulmck@...ibm.com>
Subject: Re: 2.6.24-rc2-rt1

On Nov 15, 2007 7:39 PM, Steven Rostedt <rostedt@...dmis.org> wrote:
>
> On Thu, 15 Nov 2007, Mark Knecht wrote:
>
>
> > On Nov 15, 2007 10:40 AM, Steven Rostedt <rostedt@...dmis.org> wrote:
> > > Finally!
> > >
> > > We are pleased to announce 2.6.24-rc2-rt1.
> > >
> > <SNIP>
> >
> > Hi Steve,
> >    Not sure I've ever posted on this list. Always looking to help out
> > at my low level.
> >
> >    Anyway, I tried building the kernel. My 1st two attempts, done
> > running make menuconfig from scratch, didn't boot. I gave up on that
> > for now and tried using make oldconfig from my 2.6.23-rt1 kernel (I'm
> > so far behind!!) and ended up with this error. Not sure it's enough
> > for you to find the bug. If you want/need more or want the config file
> > let me know.
> >
> >    I'm sure this is just me setting inappropriate bits but I figured I
> > might as well send along the info. >/dev/null if it's inappropriate
> > but let me know how to move forward if possible.
> >
> >    As always thanks the the rt-kernel team for all you do.
> >
> > Cheers,
> > Mark
> >
> >   CC      ipc/mqueue.o
> >   CC      ipc/compat_mq.o
> >   LD      ipc/built-in.o
> >   CC      security/security.o
> >   CC      security/dummy.o
> >   CC      security/inode.o
> >   LD      security/built-in.o
> >   CC [M]  security/commoncap.o
> >   CC [M]  security/realcap.o
> > security/realcap.c: In function 'realtime_exit':
> > security/realcap.c:129: error: implicit declaration of function
> > 'mod_unreg_security'
> > security/realcap.c:133: error: implicit declaration of function
> > 'unregister_security'
> > make[1]: *** [security/realcap.o] Error 1
> > make: *** [security] Error 2
> > lightning linux #
>
> Hi Mark,
>
> I guess you enabled the realtime capabilities (Realtime-LSM - Obsolete -)
>
> You could disable that, and try again. I'm not sending a fix (yet)
> because ...
>
>
> Ingo,
>
> Do we still need to have the realtime-lsm.patch? It has been considered
> obsolete for over a year now. Can we finally remove it.
>
> -- Steve
>

Steve,
   I'd forgotten about that package going away. I think I've been
building the interface forever in the kernel but then not actually
using it. I haven't loaded the realtime_lsm driver in a long time.
Certainly back in the 2.6.22 past somewhere since I stopped.

   Anyway, with that change to the config the rest of my old .config
file seems to have worked. The kernel boots. I have Jack running
realtime. No xruns in the few minutes I have left with this task
tonight.

mark@...htning ~ $ uname -a
Linux lightning 2.6.24-rc2-rt1 #4 PREEMPT RT Thu Nov 15 20:33:15 PST
2007 x86_64 AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux
mark@...htning ~ $

   Very good so far. I'll continue to run the kernel over the next few
days and see how things go. Nothing I do these days is a heavy load.
Just desktop work with a little bit of audio but I still run the
realtime kernel.

   Great work!

Cheers,
Mark
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