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From:   Max Kellermann <max.kellermann@ionos.com>
Date:   Wed, 18 Oct 2023 13:12:27 +0200
Message-ID: <CAKPOu+87SC1Gk7vgRC4dmBYQ4REqeEq0seFqTwngPSe=z9pn=Q@mail.gmail.com>
Subject: Re: [linux-next:master] [drivers/char/mem] 1b057bd800:
 stress-ng.splice.ops_per_sec -99.8% regression
To:     kernel test robot <oliver.sang@intel.com>
Cc:     oe-lkp@lists.linux.dev, lkp@intel.com,
        Linux Memory Management List <linux-mm@kvack.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org, ying.huang@intel.com,
        feng.tang@intel.com, fengwei.yin@intel.com
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On Wed, Oct 18, 2023 at 12:21=E2=80=AFPM Max Kellermann
<max.kellermann@ionos.com> wrote:
> I think this might be caused by a bug in stress-ng, leading to
> blocking pipe writes.

Just in case I happen to be right, I've submitted a PR for stress-ng:
https://github.com/ColinIanKing/stress-ng/pull/326