From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Mosberger <davidm@napali.hpl.hp.com>
Date: Thu, 20 May 2004 03:22:30 +0000
Subject: RE: [PATCH]   (was RE: IA64 test report:Umount cdrom oops : 2.6.6 /Lion 2004-5-13: 8/10  pass)
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To: linux-ia64@vger.kernel.org

>>>>> On Thu, 20 May 2004 10:30:09 +0800, "Yu, Luming" <luming.yu@intel.com> said:

  Luming> Hmm, maybe its memory ordering issue here.
  >>  How interesting.  Do you have CONFIG_PREEMPT enabled?

  Luming> grep -i preempt include/linux/autoconf.h
  Luming> #undef CONFIG_PREEMPT

It can't be a memory-ordering issue then.  Memory certainly is guaranteed
to be coherent...

I agree with Matthew then: most likely a compiler issue.  Especially
since nobody else has reported a similar problem.

	--david