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Date:   Fri, 2 Jul 2021 18:08:29 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>,
        regressions@...ts.linux.dev,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-ext4 <linux-ext4@...r.kernel.org>
Cc:     Ritesh Harjani <riteshh@...ux.ibm.com>,
        Harshad Shirwadkar <harshadshirwadkar@...il.com>,
        Theodore Tso <tytso@....edu>, lkft-triage@...ts.linaro.org,
        linux-fsdevel@...r.kernel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Jens Axboe <axboe@...nel.dk>, Zhang Yi <yi.zhang@...wei.com>
Subject: Re: [mainline] [arm64] Internal error: Oops - percpu_counter_add_batch

On Fri, 2 Jul 2021 at 13:54, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
>
> Results from Linaro’s test farm.
> Regression found on arm64 on Linux mainline tree.

Regression found on arm64, arm and i386 on Linux mainline tree.
But x86_64 tests PASS.

>
> The following kernel crash was noticed while running LTP fs_fill test case on
> arm64 devices Linus ' mainline tree (this is not yet tagged / released).
>
> This regression  / crash is easy to reproduce.
>
> fs_fill.c:53: TINFO: Unlinking mntpoint/thread6/file2
> fs_fill.c:87: TPASS: Got 6 ENOSPC runtime 3847ms
> [ 1140.055715] Unable to handle kernel paging request at virtual
> address ffff76a8a6b59000

ref;
https://lore.kernel.org/regressions/CA+G9fYuBvh-H8Vqp58j-coXUD8p1A6h2it_aZdRiYcN2soGNdg@mail.gmail.com/T/#u

- Naresh

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