Subject: Re: Bootable on Tyan Thunder, but crashes during a kernel compile
To: Frank van der Linden <>
From: Jason R Thorpe <>
List: tech-smp
Date: 11/09/2001 07:42:35
On Fri, Nov 09, 2001 at 04:28:48PM +0100, Frank van der Linden wrote:

 > * It does not seem to be a TLB consistency problem as I thought at
 >   one point. There is no missed IPI or anything, the TLB shootdown
 >   queues are empty when the problem occurs.

I still this that this is your most likely candidate.  Just because
the queues are empty when you see the *symptom* doesn't mean they
weren't inconsistent when the page actually was scrambled.

I really think the TLB shootdown code should be using a barrier.

        -- Jason R. Thorpe <>