linux-kernel - Re: [next] arm: Internal error: Oops: 5 PC is at __read_once_word

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Message-ID: <CA+G9fYt73AYs=z-BeZh22RBp==sf73pKky6m4iPSH7a4FssK7w@mail.gmail.com>
Date:   Wed, 9 Mar 2022 20:14:24 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Ard Biesheuvel <ardb@...nel.org>,
        "Russell King (Oracle)" <linux@...linux.org.uk>
Cc:     open list <linux-kernel@...r.kernel.org>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        Corentin Labbe <clabbe.montjoie@...il.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [next] arm: Internal error: Oops: 5 PC is at __read_once_word_nocheck

On Wed, 9 Mar 2022 at 19:37, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
>
> On Wed, 9 Mar 2022 at 16:16, Ard Biesheuvel <ardb@...nel.org> wrote:
> >
> > On Wed, 9 Mar 2022 at 11:37, Russell King (Oracle)
> > <linux@...linux.org.uk> wrote:
> > >
> > > On Wed, Mar 09, 2022 at 03:18:12PM +0530, Naresh Kamboju wrote:
> > > > While boting linux next-20220308 on BeagleBoard-X15 and qemu arm the following
> > > > kernel crash reported which is CONFIG_KASAN enabled build [1] & [2].
> > >
> > > The unwinder is currently broken in linux-next. Please try reverting
> > > 532319b9c418 ("ARM: unwind: disregard unwind info before stack frame is
> > > set up")

I have reverted the suggested commit and built and boot failed due to reported
kernel crash [1].

- Naresh

[1] https://lkft.validation.linaro.org/scheduler/job/4687876