linux-kernel - Re: next/master boot bisection: next-20190430 on beagle-xm

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Date:   Wed, 1 May 2019 09:29:44 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     "kernelci.org bot" <bot@...nelci.org>, Tejun Heo <tj@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        tomeu.vizoso@...labora.com, guillaume.tucker@...labora.com,
        mgalka@...labora.com, Thomas Gleixner <tglx@...utronix.de>,
        broonie@...nel.org, matthew.hart@...aro.org, khilman@...libre.com,
        enric.balletbo@...labora.com, Ingo Molnar <mingo@...nel.org>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Johannes Weiner <hannes@...xchg.org>,
        linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        Kevin Hilman <khilman@...nel.org>, linux-omap@...r.kernel.org
Subject: Re: next/master boot bisection: next-20190430 on beagle-xm

Hi,

* Sebastian Andrzej Siewior <bigeasy@...utronix.de> [190501 15:37]:
> 
> On 2019-04-30 13:51:40 [-0700], kernelci.org bot wrote:
> > next/master boot bisection: next-20190430 on beagle-xm
> > 
> > Summary:
> >   Start:      f43b05fd4c17 Add linux-next specific files for 20190430
> >   Details:    https://kernelci.org/boot/id/5cc84d7359b514b7ab55847b
> >   Plain log:  https://storage.kernelci.org//next/master/next-20190430/arm/multi_v7_defconfig+CONFIG_SMP=n/gcc-7/lab-baylibre/boot-omap3-beagle-xm.txt
> >   HTML log:   https://storage.kernelci.org//next/master/next-20190430/arm/multi_v7_defconfig+CONFIG_SMP=n/gcc-7/lab-baylibre/boot-omap3-beagle-xm.html
> >   Result:     6d25be5782e4 sched/core, workqueues: Distangle worker accounting from rq lock
> > 
> > Checks:
> >   revert:     PASS
> >   verify:     PASS
> > 
> > Parameters:
> >   Tree:       next
> >   URL:        git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> >   Branch:     master
> >   Target:     beagle-xm
> >   CPU arch:   arm
> >   Lab:        lab-baylibre
> >   Compiler:   gcc-7
> >   Config:     multi_v7_defconfig+CONFIG_SMP=n
> >   Test suite: boot
> > 
> > Breaking commit found:
> > 
> > -------------------------------------------------------------------------------
> > commit 6d25be5782e482eb93e3de0c94d0a517879377d0
> > Author: Thomas Gleixner <tglx@...utronix.de>
> > Date:   Wed Mar 13 17:55:48 2019 +0100
> > 
> >     sched/core, workqueues: Distangle worker accounting from rq lock
> 
> According to the bootlog it just stopped its output. This commit is in
> next since a week or two so I don't understand why this pops up now.

Adding Kevin to Cc, he just confirmed on #armlinux irc that he is able to
reproduce this with CONFIG_SMP=n and root=/dev/ram0. I could not reproduce
this issue so far on omap3 with NFSroot at least.

> I just revived my BBB and I can boot that commit in question. Currently
> that as close as I get to a beagle-xm. 
> Looking at
> 	https://kernelci.org/boot/id/5cc9a64359b514a77f5584af/
> it seems that the very same board managed to boot linux-next for
> next-20190501.
> 
> Side note: I can't boot next-20190501 on my BBB, bisect points to commit
>   1a5cd7c23cc52 ("bus: ti-sysc: Enable all clocks directly during init to read revision")
> 
> any idea?

Oh interesting thanks for letting me know. Next boots fine for me here
with NFSroot on BBB.

Do you have some output on what happens so I can investigate?

Regards,

Tony