linux-kernel - Re: [PATCH 1/2] net: ethernet: sxgbe: remove private tx queue lock

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Date:   Fri, 9 Dec 2016 00:19:43 +0100
From:   Francois Romieu <romieu@...zoreil.com>
To:     Lino Sanfilippo <LinoSanfilippo@....de>
Cc:     bh74.an@...sung.com, ks.giri@...sung.com, vipul.pandya@...sung.com,
        peppe.cavallaro@...com, alexandre.torgue@...com, pavel@....cz,
        davem@...emloft.net, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] net: ethernet: sxgbe: remove private tx queue lock

Lino Sanfilippo <LinoSanfilippo@....de> :
[...]
> OTOH Pavel said that he actually could produce a deadlock. Now I wonder if
> this is caused by that locking scheme (in a way I have not figured out yet)
> or if it is a different issue.

stmmac_tx_err races with stmmac_xmit.

-- 
Ueimor