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Date:      Mon, 28 Nov 2005 17:06:18 -0500
From:      John Baldwin <jhb@freebsd.org>
To:        Kris Kennaway <kris@obsecurity.org>
Cc:        freebsd-current@freebsd.org, Darren Pilgrim <dmp@bitfreak.org>
Subject:   Re: em interrupt storm
Message-ID:  <200511281706.19695.jhb@freebsd.org>
In-Reply-To: <20051128215511.GA29717@xor.obsecurity.org>
References:  <43842D41.1050401@samsco.org> <200511281626.33591.jhb@freebsd.org> <20051128215511.GA29717@xor.obsecurity.org>

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On Monday 28 November 2005 04:55 pm, Kris Kennaway wrote:
> On Mon, Nov 28, 2005 at 04:26:32PM -0500, John Baldwin wrote:
> > On Thursday 24 November 2005 01:27 am, Kris Kennaway wrote:
> > > On Wed, Nov 23, 2005 at 03:02:05PM -0800, Darren Pilgrim wrote:
> > > > Until this gets "fixed" in FreeBSD, what should those of us who are
> > > > effectively stuck with this hardware do to avoid the problem?  Does
> > > > the problem exist in RELENG_4?
> > >
> > > Yes, on the same machine I first mentioned.
> >
> > This is the first I've heard that the problem occurs on 4.x as well. :(
>
> Yeah..maybe the problem is not what was first believed, since that
> would apparently exclude 4.x?

Well, 4.x does mask level-triggered APIC interrupts, but I'm not sure the boot 
interrupt is the issue as people have tried to turn the boot interrupt off 
and that didn't help. :(  I'm not sure why the interrupt aliasing is 
occurring.  I do wonder if it happens on Windows or other OS's and nobody 
notices.

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org



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