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Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes

Started bySteffen <sk@ammonit.com>
First post2026-01-06 13:30 +0100
Last post2026-01-22 12:00 +0100
Articles 5 — 4 participants

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  Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Steffen <sk@ammonit.com> - 2026-01-06 13:30 +0100
    Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Uwe Kleine-König <ukleinek@debian.org> - 2026-01-19 22:20 +0100
      Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Werner Sembach <wse@tuxedocomputers.com> - 2026-01-20 15:30 +0100
      Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Steffen Kühn <sk@ammonit.com> - 2026-01-21 08:30 +0100
      Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Steffen Kühn <sk@ammonit.com> - 2026-01-22 12:00 +0100

#1277277 — Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes

FromSteffen <sk@ammonit.com>
Date2026-01-06 13:30 +0100
SubjectBug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes
Message-ID<Maemd-8uke-3@gated-at.bofh.it>
Package: linux-image-6.12.41+deb13-amd64
Version: all kernel versions higher 6.1
Severity: normal
X-Debbugs-Cc: sk@ammonit.com

Dear Maintainer,

Since updating from Debian 12 to Debian 13, my PC has been experiencing repeated kernel freezes (about 1 to 2 times a day). To find the reason, I configured the log files so that they are not deleted when the system is restarted. Unfortunately, I couldn't find anything in them. My first attempt was to install newer kernels from experimental. This did not solve the problems.

My solution now is to use a kernel from Debian 12. This runs reliably.

The kernel freeze problem also occurs on another PC. 

The systems I use are: Tuxedo InfinityBook Pro 14v5 N14xCU and Tuxedo InfinityBook Pro 15 Gen9 Model IBP15A09MK1 GX5HRXG

Best regards,
Steffen

-- System Information:
Debian Release: 13.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'oldstable-security'), (500, 'stable'), (100, 'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.1.0-35-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-6.12.41+deb13-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.148.3
ii  kmod                                    34.2-2
ii  linux-base                              4.12

Versions of packages linux-image-6.12.41+deb13-amd64 recommends:
ii  apparmor  4.1.0-1

Versions of packages linux-image-6.12.41+deb13-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  extlinux                3:6.04~git20190206.bf6db5b4+dfsg1-3.1
ii  firmware-linux-free     20241210-2
ii  grub-efi-amd64          2.12-9
pn  linux-doc-6.12          <none>

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#1279053

FromUwe Kleine-König <ukleinek@debian.org>
Date2026-01-19 22:20 +0100
Message-ID<Mf4Pf-bMXf-3@gated-at.bofh.it>
In reply to#1277277

[Multipart message — attachments visible in raw view] — view raw

Hello,

On Tue, Jan 06, 2026 at 01:25:32PM +0100, Steffen wrote:
> Package: linux-image-6.12.41+deb13-amd64
> Version: all kernel versions higher 6.1
> Severity: normal
> X-Debbugs-Cc: sk@ammonit.com
> 
> Since updating from Debian 12 to Debian 13, my PC has been
> experiencing repeated kernel freezes (about 1 to 2 times a day). To
> find the reason, I configured the log files so that they are not
> deleted when the system is restarted. Unfortunately, I couldn't find
> anything in them. My first attempt was to install newer kernels from
> experimental. This did not solve the problems.

When you say the kernel freeze, does the machine still respond to pings?
Does enabling the keyboard backlight (if available) and NumLock still
work? What about pressing Alt+PrtSc+b?

Can you try installing kernels packaged by Debian from between Debian 12
and Debian 13 from https://snapshot.debian.org/ to find the newest
kernel that still works and the oldest broken one?
 
> My solution now is to use a kernel from Debian 12. This runs reliably.
> 
> The kernel freeze problem also occurs on another PC. 
> 
> The systems I use are: Tuxedo InfinityBook Pro 14v5 N14xCU and Tuxedo InfinityBook Pro 15 Gen9 Model IBP15A09MK1 GX5HRXG

I added Werner Sembach to Cc:, maybe he has an idea or even seen this
before.

> -- System Information:
> Debian Release: 13.2
>   APT prefers stable-updates
>   APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'oldstable-security'), (500, 'stable'), (100, 'oldstable')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
> 
> Kernel: Linux 6.1.0-35-amd64 (SMP w/8 CPU threads; PREEMPT)
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
> Shell: /bin/sh linked to /usr/bin/dash
> Init: systemd (via /run/systemd/system)
> LSM: AppArmor: enabled
> 
> Versions of packages linux-image-6.12.41+deb13-amd64 depends on:
> ii  initramfs-tools [linux-initramfs-tool]  0.148.3
> ii  kmod                                    34.2-2
> ii  linux-base                              4.12
> 
> Versions of packages linux-image-6.12.41+deb13-amd64 recommends:
> ii  apparmor  4.1.0-1
> 
> Versions of packages linux-image-6.12.41+deb13-amd64 suggests:
> pn  debian-kernel-handbook  <none>
> ii  extlinux                3:6.04~git20190206.bf6db5b4+dfsg1-3.1
> ii  firmware-linux-free     20241210-2
> ii  grub-efi-amd64          2.12-9
> pn  linux-doc-6.12          <none>

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#1279128

FromWerner Sembach <wse@tuxedocomputers.com>
Date2026-01-20 15:30 +0100
Message-ID<MfkU1-bXtR-3@gated-at.bofh.it>
In reply to#1279053
Hi,

Am 19.01.26 um 22:11 schrieb Uwe Kleine-König:
> Hello,
>
> On Tue, Jan 06, 2026 at 01:25:32PM +0100, Steffen wrote:
>> Package: linux-image-6.12.41+deb13-amd64
>> Version: all kernel versions higher 6.1
>> Severity: normal
>> X-Debbugs-Cc: sk@ammonit.com
>>
>> Since updating from Debian 12 to Debian 13, my PC has been
>> experiencing repeated kernel freezes (about 1 to 2 times a day). To
>> find the reason, I configured the log files so that they are not
>> deleted when the system is restarted. Unfortunately, I couldn't find
>> anything in them. My first attempt was to install newer kernels from
>> experimental. This did not solve the problems.
> When you say the kernel freeze, does the machine still respond to pings?
> Does enabling the keyboard backlight (if available) and NumLock still
> work? What about pressing Alt+PrtSc+b?
>
> Can you try installing kernels packaged by Debian from between Debian 12
> and Debian 13 from https://snapshot.debian.org/ to find the newest
> kernel that still works and the oldest broken one?
>   
>> My solution now is to use a kernel from Debian 12. This runs reliably.
>>
>> The kernel freeze problem also occurs on another PC.
>>
>> The systems I use are: Tuxedo InfinityBook Pro 14v5 N14xCU and Tuxedo InfinityBook Pro 15 Gen9 Model IBP15A09MK1 GX5HRXG
> I added Werner Sembach to Cc:, maybe he has an idea or even seen this
> before.

These are 2 very different devices: Intel vs AMD CPU, Insyde vs AMI BIOS, like 6 
years or so in between? So no I have no idea what could break both at the same 
time that is device(s) specific.

Best regards,

Werner Sembach

>
>> -- System Information:
>> Debian Release: 13.2
>>    APT prefers stable-updates
>>    APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'oldstable-security'), (500, 'stable'), (100, 'oldstable')
>> Architecture: amd64 (x86_64)
>> Foreign Architectures: i386
>>
>> Kernel: Linux 6.1.0-35-amd64 (SMP w/8 CPU threads; PREEMPT)
>> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
>> Shell: /bin/sh linked to /usr/bin/dash
>> Init: systemd (via /run/systemd/system)
>> LSM: AppArmor: enabled
>>
>> Versions of packages linux-image-6.12.41+deb13-amd64 depends on:
>> ii  initramfs-tools [linux-initramfs-tool]  0.148.3
>> ii  kmod                                    34.2-2
>> ii  linux-base                              4.12
>>
>> Versions of packages linux-image-6.12.41+deb13-amd64 recommends:
>> ii  apparmor  4.1.0-1
>>
>> Versions of packages linux-image-6.12.41+deb13-amd64 suggests:
>> pn  debian-kernel-handbook  <none>
>> ii  extlinux                3:6.04~git20190206.bf6db5b4+dfsg1-3.1
>> ii  firmware-linux-free     20241210-2
>> ii  grub-efi-amd64          2.12-9
>> pn  linux-doc-6.12          <none>

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#1279189

FromSteffen Kühn <sk@ammonit.com>
Date2026-01-21 08:30 +0100
Message-ID<MfAP7-c8et-1@gated-at.bofh.it>
In reply to#1279053
Hi Uwe, Hi Werner,

thank you.
> When you say the kernel freeze, does the machine still respond to pings?
> Does enabling the keyboard backlight (if available) and NumLock still
> work? What about pressing Alt+PrtSc+b?

I have installed a more recent kernel again (6.17.8+deb13-amd64) and am 
now waiting for the next freeze. Then I can tell you more.

> Can you try installing kernels packaged by Debian from between Debian 12
> and Debian 13 fromhttps://snapshot.debian.org/ to find the newest
> kernel that still works and the oldest broken one?

That could take a long time, even with binary search. The error only 
occurs sporadically.

Best regards,
Steffen

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#1279340

FromSteffen Kühn <sk@ammonit.com>
Date2026-01-22 12:00 +0100
Message-ID<Mg0zU-cpO6-11@gated-at.bofh.it>
In reply to#1279053
Hi Uwe,

Yesterday there were no freezes. Today I had the first one after about 3 
hours.

 > When you say the kernel freeze, does the machine still respond to pings?

After the freeze, the laptop was no longer visible in web interface of 
the router.

 > Does enabling the keyboard backlight (if available) and NumLock still
work?

The backlight could still be turned on and off. I don't have NumLock.

 > What about pressing Alt+PrtSc+b?

It didn't work anymore.

kernel: 6.17.8+deb13-amd64

Best regards,
Steffen

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