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 10:42:31 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     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


On 18/06/2019 10:35, Jose Abreu wrote:
> From: Jon Hunter <jonathanh@...dia.com>
> 
>> I am seeing a boot regression on -next for some of our boards that have
>> a synopsys ethernet controller that uses the dwmac-dwc-qos-ethernet
>> driver. Git bisect is pointing to this commit, but unfortunately this
>> cannot be cleanly reverted on top of -next to confirm. 
> 
> Thanks for reporting. Looks like the timer is not setup when 
> stmmac_tx_clean() is called. When do you see this stacktrace ? After 
> ifdown ?

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 ...

[   10.607510] dwc-eth-dwmac 2490000.ethernet eth0: phy link up rgmii/1Gbps/Full
[   10.607536] dwc-eth-dwmac 2490000.ethernet eth0: phylink_mac_config: mode=phy/rgmii/1Gbps/Full adv=00,00000000,00000000 pause=0f link=1 an=0
[   10.608804] dwc-eth-dwmac 2490000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   10.630979] IP-Config: Complete:
[   10.639046]      device=eth0, hwaddr=d2:e5:1c:57:26:4b, ipaddr=192.168.99.2, mask=255.255.255.0, gw=192.168.99.1
[   10.649201]      host=192.168.99.2, domain=, nis-domain=(none)
[   10.655022]      bootserver=192.168.0.1, rootserver=192.168.0.1, rootpath=
[   10.677531] VDD_1V8_AP_PLL: disabling
[   10.681194] VDD_RTC: disabling
[   10.684246] VDDIO_SDMMC3_AP: disabling
[   10.688132] VDD_HDMI_1V05: disabling
[   10.691704] SD_CARD_SW_PWR: disabling
[   10.695357] VDD_USB0: disabling
[   10.698488] VDD_USB1: disabling
[   10.701621] VDD_HDMI_5V0: disabling
[   10.705100] ALSA device list:
[   10.708063]   No soundcards found.
[   10.711914] Freeing unused kernel memory: 1472K
[   10.727005] Run /init as init process
[   10.784989] ------------[ cut here ]------------
[   10.789597] kernel BUG at /home/jonathanh/workdir/tegra/mlt-linux_next/kernel/kernel/time/timer.c:952!

Cheers
Jon

-- 
nvpublic