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Re: WARNING: at net/core/dev.c:2161 net_rx_action()

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From: David Miller <davem@...>
To: <mingo@...>
Cc: <linux-kernel@...>, <torvalds@...>, <shemminger@...>, <jgarzik@...>
Subject: Re: WARNING: at net/core/dev.c:2161 net_rx_action()
Date: Monday, October 15, 2007 - 6:21 pm

From: Ingo Molnar <mingo@elte.hu>
Date: Tue, 16 Oct 2007 00:07:20 +0200


I touched upon this in another reply.

For forcedeth it should never be zero, it gets set in
netif_napi_add() to RX_WORK_PER_LOOP which is unconditionally
defined to 64.

Afterwards napi->weight should never be modified and that is
what is passed into n->poll().

Perhaps some memory scribble is causing it to be zero'd.
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Messages in current thread:
WARNING: at net/core/dev.c:2161 net_rx_action(), Ingo Molnar, (Mon Oct 15, 7:24 am)
Re: WARNING: at net/core/dev.c:2161 net_rx_action(), David Miller, (Mon Oct 15, 3:57 pm)
Re: WARNING: at net/core/dev.c:2161 net_rx_action(), Ingo Molnar, (Mon Oct 15, 6:03 pm)
Re: WARNING: at net/core/dev.c:2161 net_rx_action(), Jeff Garzik, (Mon Oct 15, 6:20 pm)
Re: WARNING: at net/core/dev.c:2161 net_rx_action(), David Miller, (Mon Oct 15, 6:18 pm)
Re: WARNING: at net/core/dev.c:2161 net_rx_action(), Ingo Molnar, (Mon Oct 15, 6:07 pm)
[patch] forcedeth: fix the NAPI poll function, Ingo Molnar, (Mon Oct 15, 6:30 pm)
Re: [patch] forcedeth: fix the NAPI poll function, Jeff Garzik, (Tue Oct 16, 5:20 pm)
Re: [patch] forcedeth: fix the NAPI poll function, Ingo Molnar, (Wed Oct 17, 3:25 am)
[patch] forcedeth: fix the NAPI poll function, take #2, Ingo Molnar, (Wed Oct 17, 6:18 am)
Re: [patch] forcedeth: fix the NAPI poll function, take #2, Jeff Garzik, (Wed Oct 17, 8:21 pm)
Re: [patch] forcedeth: fix the NAPI poll function, Jeff Garzik, (Mon Oct 15, 6:40 pm)
Re: [patch] forcedeth: fix the NAPI poll function, Ingo Molnar, (Tue Oct 16, 1:42 am)
Re: [patch] forcedeth: fix the NAPI poll function, Jeff Garzik, (Tue Oct 16, 1:47 am)
Re: [patch] forcedeth: fix the NAPI poll function, Ingo Molnar, (Tue Oct 16, 2:40 am)
Re: [patch] forcedeth: fix the NAPI poll function, Jeff Garzik, (Tue Oct 16, 3:17 am)
Re: [patch] forcedeth: fix the NAPI poll function, Ingo Molnar, (Tue Oct 16, 3:49 am)
Re: [patch] forcedeth: fix the NAPI poll function, Jeff Garzik, (Tue Oct 16, 12:52 pm)
Re: [patch] forcedeth: fix the NAPI poll function, Jeff Garzik, (Mon Oct 15, 6:41 pm)
Re: [patch] forcedeth: fix the NAPI poll function, David Miller, (Mon Oct 15, 6:39 pm)
Re: WARNING: at net/core/dev.c:2161 net_rx_action(), David Miller, (Mon Oct 15, 6:21 pm)
Re: WARNING: at net/core/dev.c:2161 net_rx_action(), Ingo Molnar, (Mon Oct 15, 7:27 am)
Re: WARNING: at net/core/dev.c:2161 net_rx_action(), Ingo Molnar, (Mon Oct 15, 12:18 pm)