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

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Date:   Mon, 14 Mar 2022 14:31:59 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     "Russell King (Oracle)" <linux@...linux.org.uk>,
        Ard Biesheuvel <ardb@...nel.org>
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>,
        Daniel Díaz <daniel.diaz@...aro.org>,
        lkft-triage@...ts.linaro.org
Subject: Re: [next] arm: Internal error: Oops: 5 PC is at __read_once_word_nocheck

Hi  Ard and Russell,

Your three patches applied and tested on x15 tested by Daniel and reported
kernel crash did not find it after multiple iterations.

ARM: unwind: set frame.pc correctly for current-thread unwinding
ARM: entry: fix unwinder problems caused by IRQ stacks
ARM: Revert "unwind: dump exception stack from calling frame"

Tested-by: Linux Kernel Functional Testing <lkft@...aro.org>

Build url:
https://builds.tuxbuild.com/26DZbOeAxshMvtU2FhS3Fytr7NS/

vmlinux: https://builds.tuxbuild.com/26DZbOeAxshMvtU2FhS3Fytr7NS/vmlinux.xz
zImage: https://builds.tuxbuild.com/26DZbOeAxshMvtU2FhS3Fytr7NS/zImage
System.map: https://builds.tuxbuild.com/26DZbOeAxshMvtU2FhS3Fytr7NS/System.map

LAVA test jobs ran on x15 device:
https://lkft.validation.linaro.org/scheduler/job/4702341
https://lkft.validation.linaro.org/scheduler/job/4702344
https://lkft.validation.linaro.org/scheduler/job/4702348
https://lkft.validation.linaro.org/scheduler/job/4702350
https://lkft.validation.linaro.org/scheduler/job/4702352
https://lkft.validation.linaro.org/scheduler/job/4702354

- Naresh