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Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1

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Control: tags -1 + moreinfo
Control: found -1 6.1.123-1

HI Alf,

On Tue, Feb 25, 2025 at 02:53:10AM +0700, Alf Nilsson wrote:
> Hello Salvatore,
> 
> Strange about the 6.1 source.
> 
> root@lenovo-m83:~# aptitude search linux-source-6.1 -vv
> i A linux-source-6.1
>                             - Linux kernel source for version 6.1 with
> Debian patches
> v   linux-source-6.1:i386
>                            -
> 
> 
> root@lenovo-m83:~# aptitude show linux-source-6.1
> Package: linux-source-6.1
> Version: 6.1.128-1
> State: installed
> Automatically installed: yes
> Multi-Arch: foreign
> Priority: optional
> Section: kernel
> Maintainer: Debian Kernel Team <debian-kernel@lists.debian.org>
> Architecture: all
> Uncompressed Size: 139 M
> Depends: binutils, xz-utils
> Recommends: build-essential, bc, rsync, kmod, cpio, bison, flex,
> libelf-dev, libssl-dev, linux-config-6.1
> Suggests: libncurses-dev | ncurses-dev, qtbase5-dev, pkg-config
> Provides: linux-source-6.1:i386 (= 6.1.128-1)
> Description: Linux kernel source for version 6.1 with Debian patches
>  This package provides source code for the Linux kernel version 6.1. This
> source closely tracks official Linux kernel releases.  Debian's
> modifications to that source consist of security fixes, bug fixes, and
>  features that have already been (or are believed to be) accepted by the
> upstream maintainers.
> Homepage: https://www.kernel.org/
> 
> root@lenovo-m83:/# grep -R 'Found multiple Units' /usr/src/linux-source-6.1
> root@lenovo-m83:/#
> 
> So not found in my source code on a Debian 12 system.

Ah, this is because you have not uncompressend the provided source.
linux-source-6.1 contains /usr/src/linux-source-6.1.tar.xz

> > Is this a regression? Which is the last 6.1.y kernel which worked?
> >
> root@lenovo-m83:/var/run# uname -vr
> 6.1.0-28-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.119-1 (2024-11-22)

So this is good to know, so it regressed between 6.1.119 and 6.1.123.

> > Can you test recent kernels from unstable (6.12.16-1) or experimental
> > (6.13.4-1~exp1), does the issue replicate there as well?
> root@debian-unstable:~# uname -vr
> 6.12.16-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.16-1 (2025-02-22)
> 
> Works fine in unstable.
> 
> Reboot now to 3.1.0-31-amd.
> 
> root@lenovo-m83:~# uname -vr
> 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07)
> 
> Attaching a boot kernel log with the camera attached.
> (See kernel.log)

Thanks. 

Would you be able to bisect the changes upstream between 6.1.119 and
6.1.123?

https://wiki.debian.org/DebianKernel/GitBisect

contains instructions on how to do so. Our goal would be to identify
which commit between 6.1.119 and 6.1.123 upstream does regress the
functionality so it can either double-checked against upper stable
series and/or report upstream for the 6.1.y branch.

So we need your help here in debugging as you have the HW. Is the
above helping you on how to proceed?

Regards,
Salvatore

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Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Salvatore Bonaccorso <carnil@debian.org> - 2025-02-23 17:20 +0100
  Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Alf Nilsson <alf.nilsson@gmail.com> - 2025-02-24 17:10 +0100
    Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Salvatore Bonaccorso <carnil@debian.org> - 2025-02-24 18:00 +0100
      Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Salvatore Bonaccorso <carnil@debian.org> - 2025-02-25 07:50 +0100
        Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Salvatore Bonaccorso <carnil@debian.org> - 2025-02-25 08:50 +0100
        Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Alf Nilsson <alf.nilsson@gmail.com> - 2025-02-25 14:10 +0100
          Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Alf Nilsson <alf.nilsson@gmail.com> - 2025-02-25 14:20 +0100
            Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Salvatore Bonaccorso <carnil@debian.org> - 2025-02-25 14:30 +0100
              Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Alf Nilsson <alf.nilsson@gmail.com> - 2025-02-25 14:50 +0100
                Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Alf Nilsson <alf.nilsson@gmail.com> - 2025-02-26 08:40 +0100
    Bug#1095764: Fwd: Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1 Salvatore Bonaccorso <carnil@debian.org> - 2025-02-24 18:00 +0100

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