netdev - Re: Memory corruption with r8169 across several device revisions and kernels

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Message-ID: <20180122000922.GA3020@electric-eye.fr.zoreil.com>
Date:   Mon, 22 Jan 2018 01:09:22 +0100
From:   Francois Romieu <romieu@...zoreil.com>
To:     Oliver Freyermuth <o.freyermuth@...glemail.com>
Cc:     netdev@...r.kernel.org
Subject: Re: Memory corruption with r8169 across several device revisions and
 kernels

Oliver Freyermuth <o.freyermuth@...glemail.com> :
> Am 21.01.2018 um 21:48 schrieb Francois Romieu:
> > Oliver Freyermuth <o.freyermuth@...glemail.com> :
[...]
> > Is it an AMD based system ?
> > 
> 
> No, all the systems on which I have observed this up to now are Intel-based. 
> Two Haswell and one Sandy Bridge system. 

Ok.

You said:

Oliver Freyermuth <o.freyermuth@...glemail.com> :
[...]
> The values found in overwritten memory match those contained in
> /proc/self/net/dev for the realtek ethernet device.

Are you able to retrieve the layout ? That is, does it appear to match:

- r8169 hardware stats DMA buffer ?
  TxOk, RxOk, TxErr, RxErr, ...

- rtnl_link_stats ?
  rx_packets, tx_packets, rx_bytes, tx_bytes, ...

or something else ?

-- 
Ueimor