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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Fri, 2 Jul 2021 18:08:29 +0530
Message-ID: <CA+G9fYszTVESKbiORBj=bvZX3qco474yYhWDV3ccveScqt41YA@mail.gmail.com>
Subject: Re: [mainline] [arm64] Internal error: Oops - percpu_counter_add_batch
To:     Linux ARM <linux-arm-kernel@lists.infradead.org>,
        open list <linux-kernel@vger.kernel.org>,
        regressions@lists.linux.dev,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-ext4 <linux-ext4@vger.kernel.org>
Cc:     Ritesh Harjani <riteshh@linux.ibm.com>,
        Harshad Shirwadkar <harshadshirwadkar@gmail.com>,
        Theodore Tso <tytso@mit.edu>, lkft-triage@lists.linaro.org,
        linux-fsdevel@vger.kernel.org,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Andreas Dilger <adilger.kernel@dilger.ca>,
        Jens Axboe <axboe@kernel.dk>, Zhang Yi <yi.zhang@huawei.com>
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On Fri, 2 Jul 2021 at 13:54, Naresh Kamboju <naresh.kamboju@linaro.org> wro=
te:
>
> Results from Linaro=E2=80=99s 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 cas=
e 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_aZd=
RiYcN2soGNdg@mail.gmail.com/T/#u

- Naresh