linux-kernel - Re: [patch] revert: [NET]: Fix races in net_rx

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Message-Id: <200707192202.51580.olaf.kirch@oracle.com>
Date:	Thu, 19 Jul 2007 22:02:49 +0200
From:	Olaf Kirch <olaf.kirch@...cle.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"Kok, Auke" <auke-jan.h.kok@...el.com>,
	Jarek Poplawski <jarkao2@...pl>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, davem@...emloft.net
Subject: Re: [patch] revert: [NET]: Fix races in net_rx_action vs netpoll

On Thursday 19 July 2007 21:56, Ingo Molnar wrote:
> nope - with this patch applied the box still has no network, symptoms 
> are similar. (should i apply the WARN_ON() patch too?)

Yes, that would be nice. If that doesn't help, you can also throw in
the one below.

Olaf
-- 
Olaf Kirch  |  --- o --- Nous sommes du soleil we love when we play
okir@....de |    / | \   sol.dhoop.naytheet.ah kin.ir.samse.qurax
---
Index: build-2.6/net/core/netpoll.c
===================================================================
--- build-2.6.orig/net/core/netpoll.c
+++ build-2.6/net/core/netpoll.c
@@ -650,7 +650,6 @@ int netpoll_setup(struct netpoll *np)
 		return -ENODEV;
 	}
 
-	np->dev = ndev;
 	if (!ndev->npinfo) {
 		npinfo = kmalloc(sizeof(*npinfo), GFP_KERNEL);
 		if (!npinfo) {
@@ -722,6 +721,8 @@ int netpoll_setup(struct netpoll *np)
 		}
 	}
 
+	np->dev = ndev;
+
 	if (is_zero_ether_addr(np->local_mac) && ndev->dev_addr)
 		memcpy(np->local_mac, ndev->dev_addr, 6);
 

-
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