linux-kernel - Re: [RFC] net: napi fix

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Date:	Thu, 20 Dec 2007 03:22:28 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	Robert.Olsson@...a.slu.se
Cc:	gallatin@...i.com, joonwpark81@...il.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, jgarzik@...ox.com,
	shemminger@...ux-foundation.org
Subject: Re: [RFC] net: napi fix

From: Robert Olsson <Robert.Olsson@...a.slu.se>
Date: Thu, 20 Dec 2007 10:52:17 +0100

>  Yes but the reason was not to wait for all pending polls to
>  complete so a server/router could be rebooted even under high-
>  load and DOS. We've experienced some nasty problems with this.

I know, see the rest of the thread where I agree that
we need to deal with this somehow.

The device is marked down first, and somehow we need to
tip off of that to break out of the NAPI loop.  This
"how" is what hasn't been resolved yet.
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