netdev - RE: [PATCH net v2 1/2] gianfar: Replace skb_realloc_headroom with skb_cow

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Message-ID: <AM0PR04MB67540916FABD7D801C9DF82496110@AM0PR04MB6754.eurprd04.prod.outlook.com>
Date:   Tue, 3 Nov 2020 17:08:43 +0000
From:   Claudiu Manoil <claudiu.manoil@....com>
To:     Julian Wiedmann <jwi@...ux.ibm.com>,
        Vladimir Oltean <olteanv@...il.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "james.jurack@...tek.com" <james.jurack@...tek.com>
Subject: RE: [PATCH net v2 1/2] gianfar: Replace skb_realloc_headroom with
 skb_cow_head for PTP

>-----Original Message-----
>From: Julian Wiedmann <jwi@...ux.ibm.com>
>Sent: Tuesday, November 3, 2020 6:37 PM
>To: Vladimir Oltean <olteanv@...il.com>; Claudiu Manoil
><claudiu.manoil@....com>
>Cc: netdev@...r.kernel.org; David S . Miller <davem@...emloft.net>; Jakub
>Kicinski <kuba@...nel.org>; james.jurack@...tek.com
>Subject: Re: [PATCH net v2 1/2] gianfar: Replace skb_realloc_headroom with
>skb_cow_head for PTP
>
>On 03.11.20 18:13, Vladimir Oltean wrote:
[...]
>>
>> Still crashes for me:
>>
>
>Given the various skb modifications in its xmit path, I wonder why
>gianfar doesn't clear IFF_TX_SKB_SHARING.

Hi Vladimir,
Can you try the above suggestion on your setup?
Thanks.