linux-kernel - Re: Revert "gro: Fix legacy path napi_complete crash", (was: Re: Linux 2.6.29)

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Message-ID: <20090324155911.GA30824@gondor.apana.org.au>
Date:	Tue, 24 Mar 2009 23:59:11 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Robert Schwebel <r.schwebel@...gutronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Frank Blaschka <blaschka@...ux.vnet.ibm.com>,
	"David S. Miller" <davem@...emloft.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	kernel@...gutronix.de
Subject: Re: Revert "gro: Fix legacy path napi_complete crash", (was: Re:
	Linux 2.6.29)

On Tue, Mar 24, 2009 at 04:47:17PM +0100, Ingo Molnar wrote:
> 
> test failure on one of the boxes, interface got stuck after ~100K 
> packets:
> 
> eth1      Link encap:Ethernet  HWaddr 00:13:D4:DC:41:12  
>           inet addr:10.0.1.13  Bcast:10.0.1.255  Mask:255.255.255.0
>           inet6 addr: fe80::213:d4ff:fedc:4112/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:22555 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:1897 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000 
>           RX bytes:2435071 (2.3 MiB)  TX bytes:503790 (491.9 KiB)
>           Interrupt:11 Base address:0x4000 

What's the NIC and config on this one? If it's still using the
legacy/netif_rx path, where GRO is off by default, this patch
should make it exactly the same as with my original patch reverted.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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