Subject: Re: 2.6.15-rc5-rt1 will not compile (was Re: 2.6.14-rt15: cannot
	build with !PREEMPT_RT)
From: Lee Revell <rlrevell@joe-job.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: david singleton <dsingleton@mvista.com>,
       linux-kernel <linux-kernel@vger.kernel.org>,
       Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>
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Date: Fri, 16 Dec 2005 15:53:39 -0500
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On Mon, 2005-12-12 at 22:28 -0500, Steven Rostedt wrote:
> On Mon, 2005-12-12 at 17:31 -0500, Lee Revell wrote:
> > On Mon, 2005-12-12 at 17:22 -0500, Steven Rostedt wrote:
> > > On Mon, 2005-12-12 at 17:14 -0500, Lee Revell wrote:
> > > 
> > > > 
> > > > The patch had no effect.
> > > 
> > > The patch should work for krfoley though.  His errors where the same
> > > that I had for i386.  I also have it working under x86_64.
> > > > 
> > > > In fact x86-64 does not set CONFIG_RWSEM_XCHGADD_ALGORITHM so this test
> > > > in include/linux/rwsem.h causes asm/rwsem.h to be included which does
> > > > not exist on x86-64:
> > > 
> > > Yeah OK, you have a different problem.  Did you post your .config?  You
> > > can send it privately to me if you haven't already posted it.
> > 
> > Yes I posted the .config earlier in the thread.  Let me know if you want
> > me to resend it to you.
> 
> Here Lee,
> 
> I got it to compile, but I haven't yet tried to boot it.  As a matter of
> fact, I haven't booted any 2.6.15-rc5-rt1 on any of my machines.  I must
> trust Ingo too much, since I started porting my kernel to his before
> testing it to see if it works without my changes.  Oh well, I know what
> to do tomorrow.
> 
> Well, this compiles, you can see if it boots ;-)

The first chunk of this patch (removing dependency of
RWSEM_GENERIC_SPINLOCK on PREEMPT_RT) is still needed to build
2.6.15-rc5-rt2 on x86-64.  Not sure whether this boots yet.

2.6.15-rc5-rt1 compiles with the patch but does not boot.

Lee

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