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

From: Ingo Molnar <[email protected]>
Date: Tue, 16 Oct 2007 00:07:20 +0200

> looking at the dev.c code - can napi_struct->weight be zero 
> legitimately? If yes then the 0 gets passed to the driver and the driver 
> would return 1 - violating the assertion.

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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---

• References:
  • Re: WARNING: at net/core/dev.c:2161 net_rx_action()
    • From: David Miller <[email protected]>
  • Re: WARNING: at net/core/dev.c:2161 net_rx_action()
    • From: Ingo Molnar <[email protected]>
  • Re: WARNING: at net/core/dev.c:2161 net_rx_action()
    • From: Ingo Molnar <[email protected]>

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