linux-kernel - RE: [PATCH net-next 3/3] net: stmmac: Convert to phylink and remove phylib logic

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Date:   Tue, 18 Jun 2019 09:46:57 +0000
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     Jon Hunter <jonathanh@...dia.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     Joao Pinto <Joao.Pinto@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Russell King <linux@...linux.org.uk>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        linux-tegra <linux-tegra@...r.kernel.org>
Subject: RE: [PATCH net-next 3/3] net: stmmac: Convert to phylink and remove
 phylib logic

From: Jon Hunter <jonathanh@...dia.com>

> I am not certain but I don't believe so. We are using a static IP address
> and mounting the root file-system via NFS when we see this ...

Can you please add a call to napi_synchronize() before every 
napi_disable() calls, like this:

if (queue < rx_queues_cnt) {
	napi_synchronize(&ch->rx_napi);
	napi_disable(&ch->rx_napi);
}

if (queue < tx_queues_cnt) {
	napi_synchronize(&ch->tx_napi);
	napi_disable(&ch->tx_napi);
}

[ I can send you a patch if you prefer ]

Thanks,
Jose Miguel Abreu