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SubjectRe: linusw/for-next boot bisection: v5.2-rc1-8-g73a790c68d7e on rk3288-veyron-jaq
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Hi Geert,

On 28/05/2019 08:45, Geert Uytterhoeven wrote:
> Hi Guillaume,
>
> On Tue, May 28, 2019 at 9:13 AM Guillaume Tucker
> <guillaume.tucker@collabora.com> wrote:
>> On 28/05/2019 00:38, kernelci.org bot wrote:
>>> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>>> * This automated bisection report was sent to you on the basis *
>>> * that you may be involved with the breaking commit it has *
>>> * found. No manual investigation has been done to verify it, *
>>> * and the root cause of the problem may be somewhere else. *
>>> * Hope this helps! *
>>> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>>>
>>> linusw/for-next boot bisection: v5.2-rc1-8-g73a790c68d7e on rk3288-veyron-jaq
>>>
>>> Summary:
>>> Start: 73a790c68d7e Merge branch 'devel' into for-next
>>> Details: https://kernelci.org/boot/id/5cebf03d59b514dd627a3629
>>> Plain log: https://storage.kernelci.org//linusw/for-next/v5.2-rc1-8-g73a790c68d7e/arm/multi_v7_defconfig/gcc-8/lab-collabora/boot-rk3288-veyron-jaq.txt
>>> HTML log: https://storage.kernelci.org//linusw/for-next/v5.2-rc1-8-g73a790c68d7e/arm/multi_v7_defconfig/gcc-8/lab-collabora/boot-rk3288-veyron-jaq.html
>>> Result: 28694e009e51 thermal: rockchip: fix up the tsadc pinctrl setting error
>>>
>>> Checks:
>>> revert: PASS
>>> verify: PASS
>>>
>>> Parameters:
>>> Tree: linusw
>>> URL: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git/
>>> Branch: for-next
>>> Target: rk3288-veyron-jaq
>>> CPU arch: arm
>>> Lab: lab-collabora
>>> Compiler: gcc-8
>>> Config: multi_v7_defconfig
>>> Test suite: boot
>>>
>>> Breaking commit found:
>>>
>>> -------------------------------------------------------------------------------
>>> commit 28694e009e512451ead5519dd801f9869acb1f60
>>> Author: Elaine Zhang <zhangqing@rock-chips.com>
>>> Date: Tue Apr 30 18:09:44 2019 +0800
>>>
>>> thermal: rockchip: fix up the tsadc pinctrl setting error
>>
>> This commit has now been reverted in mainline. Would it be OK
>> for you to rebase your for-next branch on v5.2-rc2 or cherry-pick
>> the revert to avoid recurring bisections?
>>
>> Ideally this should have been fixed or reverted in mainline
>> before v5.2-rc1 was released, or even earlier when this was first
>> found in -next on 13th May. Unfortunately it was overlooked and
>> then spread to other branches like yours.
>
> I'm afraid it's gonna spread to even more for-next branches, as most
> subsystem maintainers base their for-next branch on the previous rc1
> release. Typically maintainers do not rebase their for-next branches,
> and do not cherry-pick fixes, unless they are critical for their
> subsystem. So you can expect this to show up in e.g. the m68k for-next
> branch soon...

That is what I feared, thanks for confirming.

> Can't you mark this as a known issue, to prevent spending cycles on the
> same bisection, and sending out more bisection reports for the same
> issue?

Not really, so I've disabled bisections in the linux-gpio tree
and a few other maintainers' trees for now. I'll see if we can
come up with a more systematic way of suppressing bisections in
similar cases (i.e. the issue has been fixed in mainline later
than the base commit for the branch being tested).

Thanks,
Guillaume

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