linux-kernel - Re: [PATCH 5.15 000/297] 5.15.140-rc1 review

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Message-ID: <CAEUSe7_PUdRgJpY36jZxy84CbNX5TTnynqU8derf0ZBSDtUOqw@mail.gmail.com>
Date:   Mon, 27 Nov 2023 11:32:12 -0600
From:   Daniel Díaz <daniel.diaz@...aro.org>
To:     Jan Kara <jack@...e.cz>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, patches@...ts.linux.dev,
        linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
        patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de,
        jonathanh@...dia.com, f.fainelli@...il.com,
        sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de,
        conor@...nel.org, chrubis@...e.cz
Subject: Re: [PATCH 5.15 000/297] 5.15.140-rc1 review

Hello!

On Mon, 27 Nov 2023 at 09:56, Jan Kara <jack@...e.cz> wrote:
> Hello!
>
> On Fri 24-11-23 23:45:09, Daniel Díaz wrote:
> > On 24/11/23 11:50 a. m., Greg Kroah-Hartman wrote:
> > > This is the start of the stable review cycle for the 5.15.140 release.
> > > There are 297 patches in this series, all will be posted as a response
> > > to this one.  If anyone has any issues with these being applied, please
> > > let me know.
> > >
> > > Responses should be made by Sun, 26 Nov 2023 17:19:17 +0000.
> > > Anything received after that time might be too late.
> > >
> > > The whole patch series can be found in one patch at:
> > >     https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.140-rc1.gz
> > > or in the git tree and branch at:
> > >     git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> > > and the diffstat can be found below.
> > >
> > > thanks,
> > >
> > > greg k-h
> >
> > We are noticing a regression with ltp-syscalls' preadv03:
>
> Thanks for report!
>
> > -----8<-----
> >   preadv03 preadv03
> >   preadv03_64 preadv03_64
> >   preadv03.c:102: TINFO: Using block size 512
> >   preadv03.c:87: TPASS: preadv(O_DIRECT) read 512 bytes successfully with content 'a' expectedly
> >   preadv03.c:87: TPASS: preadv(O_DIRECT) read 512 bytes successfully with content 'a' expectedly
> >   preadv03.c:87: TPASS: preadv(O_DIRECT) read 512 bytes successfully with content 'b' expectedly
> >   preadv03.c:102: TINFO: Using block size 512
> >   preadv03.c:77: TFAIL: Buffer wrong at 0 have 62 expected 61
> >   preadv03.c:77: TFAIL: Buffer wrong at 0 have 62 expected 61
> >   preadv03.c:66: TFAIL: preadv(O_DIRECT) read 0 bytes, expected 512
> >   preadv03.c:102: TINFO: Using block size 512
> >   preadv03.c:77: TFAIL: Buffer wrong at 0 have 62 expected 61
> >   preadv03.c:77: TFAIL: Buffer wrong at 0 have 62 expected 61
> >   preadv03.c:66: TFAIL: preadv(O_DIRECT) read 0 bytes, expected 512
> >   preadv03.c:102: TINFO: Using block size 512
> >   preadv03.c:87: TPASS: preadv(O_DIRECT) read 512 bytes successfully with content 'a' expectedly
> >   preadv03.c:87: TPASS: preadv(O_DIRECT) read 512 bytes successfully with content 'a' expectedly
> >   preadv03.c:87: TPASS: preadv(O_DIRECT) read 512 bytes successfully with content 'b' expectedly
> >   preadv03.c:102: TINFO: Using block size 512
> >   preadv03.c:77: TFAIL: Buffer wrong at 0 have 62 expected 61
> >   preadv03.c:77: TFAIL: Buffer wrong at 0 have 62 expected 61
> >   preadv03.c:66: TFAIL: preadv(O_DIRECT) read 0 bytes, expected 512
> >   preadv03.c:102: TINFO: Using block size 512
> >   preadv03.c:77: TFAIL: Buffer wrong at 0 have 62 expected 61
> >   preadv03.c:77: TFAIL: Buffer wrong at 0 have 62 expected 61
> >   preadv03.c:66: TFAIL: preadv(O_DIRECT) read 0 bytes, expected 512
> > ----->8-----
> >
> > This is seen in the following environments:
> > * dragonboard-845c
> > * juno-64k_page_size
> > * qemu-arm64
> > * qemu-armv7
> > * qemu-i386
> > * qemu-x86_64
> > * x86_64-clang
> >
> > and on the following RC's:
> > * v5.10.202-rc1
> > * v5.15.140-rc1
> > * v6.1.64-rc1
>
> Hum, even in 6.1? That's odd. Can you please test whether current upstream
> vanilla kernel works for you with this test? Thanks!

Yes, this is working for us on mainline and next:
  https://qa-reports.linaro.org/lkft/linux-mainline-master/tests/ltp-syscalls/preadv03
  https://qa-reports.linaro.org/lkft/linux-next-master/tests/ltp-syscalls/preadv03
c.fr. 6.1:
  https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.1.y/tests/ltp-syscalls/preadv03

Greetings!

Daniel Díaz
daniel.diaz@...aro.org