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SubjectRe: [2.6.35-rc1] page alloc failure order:1, mode:0x4020
On 2010.06.04 14:53:34 , Eric Dumazet wrote:
> order-1 allocations are unfortunate, since this hardware should use
> order-0 ones if possible, and it seems it was its goal.
>
> 3872 (0xF20) comes from
<snip>
>
> 1) Maybe rx_bufsize should not include the roundup() since
> ath_rxbuf_alloc() also do an alignment adjustment ?
>
> 2) We should try to reduce skb_shared_info by four bytes.
>
> Could you try this patch ?
>
>
> We make sure rx_bufsize + various overhead <= PAGE_SIZE
> But I am not sure its legal for the hardware...

I applied the patch recompiled and run it on the routerboard, trying
to trigger the bug again.

Kind regards,
Michael


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