From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Sat, 15 Mar 2003 06:46:28 +0000 Subject: Re: [Linux-ia64] [patch] 2.4.20-ia64-021210 new spinlock code Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org I thought about it some more and recalled why I was so uneasy about claiming ar.pfs is 0: the problem is that this informs that the _previous_ register frame was empty, not the current one. So the unwind info technically is still wrong. I think you realize that, and the kernel unwinder won't complain, since it's not paranoid about validating accesses to stacked registers. But still, the unwind info is wrong and I'm not terribly comfortable with that. --david