Re: Potential source of interrupt aliasing

From: Doug White <dwhite_at_gumbysoft.com>
Date: Sun, 10 Apr 2005 15:15:36 -0700 (PDT)
On Sun, 10 Apr 2005, Wilhelm B. Kloke wrote:

> Doug White <dwhite_at_gumbysoft.com> schrieb:
> > On Fri, 8 Apr 2005, John Baldwin wrote:
> >
> > For fun, I put together this one-liner to at least test the theory:
> >
> > http://people.freebsd.org/~dwhite/intr_machdep.c.20050409.patch
>
> As I have found a problem which could be related to this, I tried your patch.
> For my problems, it made things not better, possibly worse.

Don't use my patch. It will cause lockups under load.

I suspect that the underlying issue is related to storming issues in PIC
mode, but I'd rather try to fix it in APIC mode first.

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite_at_gumbysoft.com          |  www.FreeBSD.org
Received on Sun Apr 10 2005 - 20:15:37 UTC

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