From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Mon, 03 Feb 2003 23:43:28 +0000 Subject: Re: [Linux-ia64] Preempt problems 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 >>>>> On Tue, 4 Feb 2003 09:33:31 +1100, Peter Chubb said: Peter> I just got one of these on a straight 2.5.59+davidm's Peter> patches, on a vanilla zx2000. The kernel address is always Peter> the same, at 0xffe6bf10, regardless of the kernel, and Peter> regardless of the command that was (apparently) running at Peter> the time. Can't say I have ever seen anything like this. It does look like the top 32 bits somehow get truncated to zero. Rather weird. Peter> I'm at a loss as to how to debug this thing now. Can anyone Peter> suggest anything? It *could* be a hardware problem (I've had Peter> problems with this machine before). If you had problems before, a hw problem sounds like a real possibility. If I can find some time, I'll try your patch on some of our machines. --david