linux-kernel - Re: [PATCH v4] Makefile.compiler: replace cc-ifversion with compiler-specific macros

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Message-ID: <CAK7LNAQCNVHg=brV-iPL__HAhoNtAKzCiiG2M3Q9jkMvTnrbog@mail.gmail.com>
Date:   Sat, 30 Sep 2023 19:24:11 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Shreeya Patel <shreeya.patel@...labora.com>
Cc:     Linux regressions mailing list <regressions@...ts.linux.dev>,
        Greg KH <gregkh@...uxfoundation.org>,
        Maksim Panchenko <maks@...a.com>,
        Ricardo Cañuelo <ricardo.canuelo@...labora.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        clang-built-linux <llvm@...ts.linux.dev>,
        Bill Wendling <morbo@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        "gustavo.padovan@...labora.com" <gustavo.padovan@...labora.com>,
        Guillaume Charles Tucker <guillaume.tucker@...labora.com>,
        denys.f@...labora.com, Nick Desaulniers <ndesaulniers@...gle.com>,
        kernelci@...ts.linux.dev,
        Collabora Kernel ML <kernel@...labora.com>
Subject: Re: [PATCH v4] Makefile.compiler: replace cc-ifversion with
 compiler-specific macros

On Fri, Sep 15, 2023 at 6:33 PM Shreeya Patel
<shreeya.patel@...labora.com> wrote:
>
> On 11/09/23 15:35, Thorsten Leemhuis wrote:
>
> Hi Thorsten,
>
> > On 29.08.23 13:28, Linux regression tracking (Thorsten Leemhuis) wrote:
> >> On 11.07.23 13:16, Shreeya Patel wrote:
> >>> On 10/07/23 17:39, Linux regression tracking (Thorsten Leemhuis) wrote:
> >>>> Hi, Thorsten here, the Linux kernel's regression tracker. Top-posting
> >>>> for once, to make this easily accessible to everyone.
> >>>>
> >>>> Shreeya Patel, Masahiro Yamada: what's the status of this? Was any
> >>>> progress made to address this? Or is this maybe (accidentally?) fixed
> >>>> with 6.5-rc1?
> >>> I still see the regression happening so it doesn't seem to be fixed.
> >>> https://linux.kernelci.org/test/case/id/64ac675a8aebf63753bb2a8c/
> >>>
> >>> Masahiro had submitted a fix for this issue here.
> >>>
> >>> https://lore.kernel.org/lkml/ZJEni98knMMkU%2Fcl@buildd.core.avm.de/T/#t
> >>>
> >>> But I don't see any movement there. Masahiro, are you planning to send a
> >>> v2 for it?
> >> That was weeks ago and we didn't get a answer. :-/ Was this fixed in
> >> between? Doesn't look like it from here, but I might be missing something.
> > Still no reply. :-/
> >
> > Shreeya Patel, does the problem still happen with 6.6-rc1 and do you
> > still want to see it fixed? In that case our only option to get things
> > rolling again might be to involve Linus, unless someone in the CC list
> > has a idea to resolve this. Might also be good to know if reverting the
> > culprit fixes the problem.
>
>
> I don't see this issue happening on 6.6-rc1 kernel and it was only last
> seen in 6.5 kernel.
> But there was no fix added to Kbuild in the meantime so not sure which
> commit really fixed this issue.
>
> For now we can mark this as resolved and I'll keep an eye on the future
> test results to see if this pops up again.
>
>
> Thanks,
> Shreeya Patel
>
> #regzbot resolve: Fixed in 6.6-rc1 kernel, fix commit is unknown.



Not fixed in 6.6-rc1.

I submitted a patch to shoot the root cause.

https://lore.kernel.org/all/20230925110023.1796789-1-masahiroy@kernel.org/


Now it is in Russell's patch tracker.




-- 
Best Regards
Masahiro Yamada