Re: kernel oops with kernel-smp-2.4.20-20.9 (Unable to handle kernel NULL pointer dereference at virtual address 00000000)

[Frederic Trudeau]

Thanks Scoot. Im no kernel hacker, so please tell me again what I must do.
Grab the latest e1000 drivers ? From where ?

Thanks

----- Original Message ----- 
From: "Feldman, Scott" <scott.feldman@xxxxxxxxx>
To: "Frederic Trudeau" <ftrudeau@xxxxxxxxxxxxxx>;
<linux-kernel@xxxxxxxxxxxxxxx>
Sent: Monday, September 08, 2003 8:51 PM
Subject: RE: kernel oops with kernel-smp-2.4.20-20.9 (Unable to handle
kernel NULL pointer dereference at virtual address 00000000)


> >>EIP; f8b05260 <[e1000]e1000_clean_rx_ring+30/140>   <=====
>
> >>ecx; 00031988 Before first symbol
> >>edx; f770b980 <_end+3728d080/3838e760>
> >>esp; f54a1e98 <_end+35023598/3838e760>
>
> Trace; f8b051dd <[e1000]e1000_free_rx_resources+1d/70>
> Trace; f8b04a26 <[e1000]e1000_open+46/60>

Fix in newer e1000 drivers.  Your failing request_irq().  Need to remove
some code in e1000_up so we don't try to free resources twice:

        if(request_irq(netdev->irq, &e1000_intr, SA_SHIRQ |
SA_SAMPLE_RANDOM,
                       netdev->name, netdev)) {
-               e1000_reset_hw(&adapter->hw);
-               e1000_free_tx_resources(adapter);
-               e1000_free_rx_resources(adapter);
                return -1;
        }

-scott


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