netdev - Re: [patch 12/19] fix irq problem with NAPI + NETPOLL

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Message-Id: <20070308.103513.103776988.nemoto@toshiba-tops.co.jp>
Date:	Thu, 08 Mar 2007 10:35:13 +0900 (JST)
From:	Atsushi Nemoto <anemo@....ocn.ne.jp>
To:	davem@...emloft.net
Cc:	akpm@...ux-foundation.org, jeff@...zik.org, netdev@...r.kernel.org,
	romieu@...zoreil.com, shemminger@...ux-foundation.org
Subject: Re: [patch 12/19] fix irq problem with NAPI + NETPOLL

On Wed, 07 Mar 2007 15:18:44 -0800 (PST), David Miller <davem@...emloft.net> wrote:
> netpoll_rx() should be invokable from hardware interrupt context.
> What is the crash you are seeing?

The problem is not netpoll_rx().  It should be called from irq context.
The problem is, netif_receive_skb() is called from irq context though
it seems not designed to do so.

> It looks like perhaps the kfree_skb() calls need to be modified
> in __netpoll_rx().

Well, it seems an another netpoll bug.
---
Atsushi Nemoto
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