From: David Miller <[EMAIL PROTECTED]>
Subject: Re: Regression in net-2.6.24?
Date: Thu, 11 Oct 2007 18:14:49 -0700 (PDT)

> 
> Here is what I'm checking into net-2.6 for now:
> 
> commit 6f535763165331bb91277d7519b507fed22034e5
> Author: David S. Miller <[EMAIL PROTECTED]>
> Date:   Thu Oct 11 18:08:29 2007 -0700
> 
>     [NET]: Fix NAPI completion handling in some drivers.
>     
>     In order for the list handling in net_rx_action() to be
>     correct, drivers must follow certain rules as stated by
>     this comment in net_rx_action():
>     
>               /* Drivers must not modify the NAPI state if they
>                * consume the entire weight.  In such cases this code
>                * still "owns" the NAPI instance and therefore can
>                * move the instance around on the list at-will.
>                */
>     
>     A few drivers do not do this because they mix the budget checks
>     with reading hardware state, resulting in crashes like the one
>     reported by [EMAIL PROTECTED]
>     
>     BNX2 and TG3 are taken care of here, SKY2 fix is from Stephen
>     Hemminger.
>     
>     Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
> 
I am sorry for late reply.
I confirmed this patch fixes the kernel panic that I reported.
Thanks David and others.

Ryousei Takano
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