linux-kernel - Re: smsc95xx driver

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Date:   Tue, 16 Aug 2022 16:22:27 +0200
From:   Ferry Toth <fntoth@...il.com>
To:     Iryna Semenovych <iryna.semenovych@...rgex.de>,
        netdev@...r.kernel.org
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com,
        Steve Glendinning <steve.glendinning@...well.net>,
        UNGLinuxDriver@...rochip.com,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, stable@...nel.org
Subject: Re: smsc95xx driver

Hi,

On 16-08-2022 11:44, Iryna Semenovych wrote:
> Hi folks!
>
> Recently I found the discussion in the archive about smsc95xx driver 
> patch that introduces some other issues:
> https://lore.kernel.org/netdev/93d3bb50040dd4519a65187d3412973831d2d797.camel@collabora.com/
>
> I am struggling with the similar/the same issue that is described in 
> detail here:
> https://github.com/raspberrypi/linux/issues/5116
>
I believe that a number patches have just been backported for usbnet: 
smsc95xx for 5.15 and 5.18 that might resolve your issue.

I did find another crash:

DMA-API: xhci-hcd xhci-hcd.1.auto: cacheline tracking EEXIST, > > > 
overlapping mappings aren't supported But it appears happens in the hub 
code as other hubs then smsc95xx also have that error. This one has not 
yet been resolved.

> Does anybody know if this issue is even related to smsc95xx driver 
> changes or how it can be fixed?
> I would really appreciate any help.
>
> Thanks in advance!
>
> -- 
> *Best regards, *
> *Iryna Semenovych*
> Software Engineer
>
> T:   +49 157 31090173
> M: iryna.semenovych@...rgex.de
> W: www.chargex.de <http://www.chargex.de>
>
> ChargeX GmbH
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