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Date:      Tue, 24 Jul 2007 01:23:29 +0200
From:      "Attilio Rao" <attilio@freebsd.org>
To:        "Jeff Roberson" <jroberson@chesapeake.net>
Cc:        current@freebsd.org, Matt <datahead4@gmail.com>
Subject:   Re: ULE status, invalid load, buildkernel times.
Message-ID:  <3bbf2fe10707231623r1390b1a2r52c2830831621245@mail.gmail.com>
In-Reply-To: <46A52B19.9060909@FreeBSD.org>
References:  <20070721174631.S561@10.0.0.1> <cd6b4a5b0707231313o1256c80aj596e32a1ff9e50f6@mail.gmail.com> <20070723152212.O561@10.0.0.1> <46A52B19.9060909@FreeBSD.org>

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2007/7/24, Attilio Rao <attilio@freebsd.org>:
> Jeff Roberson wrote:
> >
> > I suspect that this is unrelated to my patch but I can't say for
> > certain. There have been some kse locking problems that Attilio has a
> > patch for.  I believe it went in today.  Hopefully he will comment.
>
> This is exactly the same bug pav@ experienced on amd64 machines some
> weeks ago.
> Basically, there is a race with ku_owner accesses which make it
> unconsistent in SMP / PREEMPTION systems.
> I committed a fix for that, but since I broke buildkernel too with that
> commit I would suggest to wait until the fix for a correct kernel
> building won't be committed (it should be rather soon though) and than
> to CVSup again sources.

Ok, this is the good moment for a CVSup.

Thanks,
Attilio


-- 
Peace can only be achieved by understanding - A. Einstein



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