linux-kernel - Re: [PATCH 5.15 000/277] 5.15.34-rc1 review

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Date:   Tue, 12 Apr 2022 17:02:17 +0200
From:   Marco Elver <elver@...gle.com>
To:     Naresh Kamboju <naresh.kamboju@...aro.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
        linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, sudipm.mukherjee@...il.com,
        slade@...dewatkins.com, Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        kasan-dev <kasan-dev@...glegroups.com>,
        linux-mm <linux-mm@...ck.org>
Subject: Re: [PATCH 5.15 000/277] 5.15.34-rc1 review

On Tue, 12 Apr 2022 at 16:16, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
>
> On Tue, 12 Apr 2022 at 12:11, Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> >
> > This is the start of the stable review cycle for the 5.15.34 release.
> > There are 277 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> >
> > Responses should be made by Thu, 14 Apr 2022 06:28:59 +0000.
> > Anything received after that time might be too late.
> >
> > The whole patch series can be found in one patch at:
> >         https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.34-rc1.gz
> > or in the git tree and branch at:
> >         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
>
>
> On linux stable-rc 5.15 x86 and i386 builds failed due to below error [1]
> with config [2].
>
> The finding is when kunit config is enabled the builds pass.
> CONFIG_KUNIT=y
>
> But with CONFIG_KUNIT not set the builds failed.
>
> x86_64-linux-gnu-ld: mm/kfence/core.o: in function `__kfence_alloc':
> core.c:(.text+0x901): undefined reference to `filter_irq_stacks'
> make[1]: *** [/builds/linux/Makefile:1183: vmlinux] Error 1
>
> Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
>
> I see these three commits, I will bisect and get back to you
>
> 2f222c87ceb4 kfence: limit currently covered allocations when pool nearly full
> e25487912879 kfence: move saving stack trace of allocations into
> __kfence_alloc()
> d99355395380 kfence: count unexpectedly skipped allocations

My guess is that this commit is missing:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f39f21b3ddc7fc0f87eb6dc75ddc81b5bbfb7672

Thanks,
-- Marco