Subject: Re: NFS corruption, fixed by echo 1 > /proc/sys/vm/drop_caches -- next debugging steps?

From: Eric Dumazet <[email-masked]>
Date: Fri, 08 Dec 2017 13:16:21 -0800

On Fri, 2017-12-08 at 12:26 -0800, Matt Turner wrote:
> 
> Thanks for the quick reply!
> 
> I tried the patch on top of master, but unfortunately the corruption
> still occurs.

You might try replacing in sbdma_add_rcvbuffer()

sb_new = netdev_alloc_skb(dev, size);

by 

sb_new = alloc_skb(size, GFP_ATOMIC);

Maybe the device does not like having a frame spanning 2 pages.

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