Re: [Linux-ia64] Preempt problems

From: David Mosberger <davidm_at_napali.hpl.hp.com>
Date: 2003-02-04 10:43:28
>>>>> On Tue, 4 Feb 2003 09:33:31 +1100, Peter Chubb <peter@chubb.wattle.id.au> 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
Received on Mon Feb 03 15:58:25 2003

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