netdev - Re: [Regression] net/phy/micrel.c v4.9.94

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Message-ID: <28e69b2b-e948-ab0e-d0c4-5f78994cfd98@gtsys.com.hk>
Date:   Thu, 19 Apr 2018 09:21:05 +0800
From:   Chris Ruehl <chris.ruehl@...ys.com.hk>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     f.fainelli@...il.com, netdev@...r.kernel.org
Subject: Re: [Regression] net/phy/micrel.c v4.9.94

On Wednesday, April 18, 2018 09:02 PM, Andrew Lunn wrote:
> On Wed, Apr 18, 2018 at 02:56:01PM +0200, Andrew Lunn wrote:
>> On Wed, Apr 18, 2018 at 09:34:16AM +0800, Chris Ruehl wrote:
>>> Hello,
>>>
>>> I like to get your heads up at a regression introduced in 4.9.94
>>> commitment lead to a kernel ops and make the network unusable on my MX6DL
>>> customized board.
>>>
>>> Race condition resume is called on startup and the phy not yet initialized.
>>
>> Hi Chris
>>
>> Please could you try
>>
>> bfe72442578b ("net: phy: micrel: fix crash when statistic requested for KSZ9031 phy")
> 
> I don't think it is a complete fix. I suspect "Micrel KSZ8795",
> "Micrel KSZ886X Switch", "Micrel KSZ8061", and "Micrel KS8737" will
> still have problems.
> 
> Those four probably need a:
> 
>          .probe          = kszphy_probe,
> 
> 	Andrew
> 

Indeed I have the
[    7.385851] Micrel KSZ9031 Gigabit PHY 2188000.ethernet-1:05: attached PHY 
driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=2188000.ethernet-1:05, irq=-1)

first I rollback to a non crashing stable kernel.

As "bfe72442578b" gonna fix it I check with the next update and verify its works 
for me.

Thanks
Chris