netdev - Re: stable/linux-4.4.y bisection: baseline.login on at91-sama5d4

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Message-ID: <20200515083836.GA5005@buimax>
Date:   Fri, 15 May 2020 11:38:38 +0300
From:   Henri Rosten <henri.rosten@...kie.com>
To:     Sasha Levin <sashal@...nel.org>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Guillaume Tucker <guillaume.tucker@...labora.com>,
        "David S. Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: stable/linux-4.4.y bisection: baseline.login on
 at91-sama5d4_xplained

On Fri, May 15, 2020 at 11:14:00AM +0300, Henri Rosten wrote:
> On Tue, May 12, 2020 at 05:15:19PM -0400, Sasha Levin wrote:
> > On Tue, May 12, 2020 at 01:29:06PM -0700, Florian Fainelli wrote:
> > > 
> > > 
> > > On 5/12/2020 4:10 AM, Alexandre Belloni wrote:
> > > > Hi,
> > > > 
> > > > On 12/05/2020 06:54:29+0100, Guillaume Tucker wrote:
> > > > > Please see the bisection report below about a boot failure.
> > > > > 
> > > > > Reports aren't automatically sent to the public while we're
> > > > > trialing new bisection features on kernelci.org but this one
> > > > > looks valid.
> > > > > 
> > > > > It appears to be due to the fact that the network interface is
> > > > > failing to get brought up:
> > > > > 
> > > > > [  114.385000] Waiting up to 10 more seconds for network.
> > > > > [  124.355000] Sending DHCP requests ...#
> > > > > ..#
> > > > > .#
> > > > >  timed out!
> > > > > [  212.355000] IP-Config: Reopening network devices...
> > > > > [  212.365000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
> > > > > #
> > > > > 
> > > > > 
> > > > > I guess the board would boot fine without network if it didn't
> > > > > have ip=dhcp in the command line, so it's not strictly a kernel
> > > > > boot failure but still an ethernet issue.
> > > > > 
> > > > 
> > > > I think the resolution of this issue is
> > > > 99f81afc139c6edd14d77a91ee91685a414a1c66. If this is taken, then I think
> > > > f5aba91d7f186cba84af966a741a0346de603cd4 should also be backported.
> > > 
> > > Agreed.
> > 
> > Okay, I've queued both for 4.4, thanks!
> 
> I notice 99f81afc139c was reverted in mainline with commit b43bd72835a5.  
> The revert commit points out that:
> 
> "It was papering over the real problem, which is fixed by commit
> f555f34fdc58 ("net: phy: fix auto-negotiation stall due to unavailable
> interrupt")"
> 
> Maybe f555f34fdc58 should be backported to 4.4 instead of 
> 99f81afc139c?

Notice if f555f34fdc58 is taken, then I believe 215d08a85b9a should also 
be backported.

-- Henri