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

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Date:   Tue, 12 Apr 2022 19:45:55 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Marco Elver <elver@...gle.com>
Cc:     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 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


--
Linaro LKFT
https://lkft.linaro.org

[1] https://builds.tuxbuild.com/27h6Ztu4T35pY178Xg8EyAj7gIW/
[2] https://builds.tuxbuild.com/27h6Ztu4T35pY178Xg8EyAj7gIW/config