Package: linux-image-6.12.73+deb13-amd64
Version: 6.12.73-1
Severity: normal
X-Debbugs-Cc: [email protected]
Dear Maintainer,
* What led up to the situation?
apt-get dist-upgrade
* What exactly did you do (or not do) that was effective (or
ineffective)?
reboot to previous linux-image-6.12.41+deb13-amd64 makes networking
work again.
* What was the outcome of this action?
Seems like TCP connections do not work beyond the first connection.
For example, two apt-get update commands fail on the second one:
root@marcamalaga:~# uname -r
6.12.73+deb13-amd64
root@marcamalaga:~# date
Wed Mar 11 10:22:19 AM CET 2026
root@marcamalaga:~# apt-get update
Get:1 http://security.debian.org/debian-security trixie-security InRelease
[43.4 kB]
Hit:2 http://ftp.es.debian.org/debian trixie InRelease
Get:3 http://ftp.es.debian.org/debian trixie-updates InRelease [47.3 kB]
Hit:4 https://www.deb-multimedia.org trixie InRelease
Fetched 90.7 kB in 1s (152 kB/s)
Reading package lists... Done
root@marcamalaga:~#
root@marcamalaga:~# date
Wed Mar 11 10:22:28 AM CET 2026
root@marcamalaga:~#
root@marcamalaga:~# apt-get update
Hit:1 http://security.debian.org/debian-security trixie-security InRelease
Hit:2 http://ftp.es.debian.org/debian trixie InRelease
Hit:3 http://ftp.es.debian.org/debian trixie-updates InRelease
Ign:4 https://www.deb-multimedia.org trixie InRelease
Ign:4 https://www.deb-multimedia.org trixie InRelease
Ign:4 https://www.deb-multimedia.org trixie InRelease
Err:4 https://www.deb-multimedia.org trixie InRelease
Cannot initiate the connection to www.deb-multimedia.org:443
(2607:5300:120:e71::1). - connect (101: Network is unreachable) Could not
connect to www.deb-multimedia.org:443 (158.69.254.113), connection timed out
Cannot initiate the connection to www.deb-multimedia.org:443
(2607:5300:120:e71::1). - connect (101: Network is unreachable)
Reading package lists... Done
W: Failed to fetch https://www.deb-multimedia.org/dists/trixie/InRelease
Cannot initiate the connection to www.deb-multimedia.org:443
(2607:5300:120:e71::1). - connect (101: Network is unreachable)
W: Some index files failed to download. They have been ignored, or old ones
used instead.
root@marcamalaga:~#
Similarly, for illustration, here two probes of an HTTP stream, works
only once:
administrator@marcamalaga:~$ uname -r
6.12.73+deb13-amd64
administrator@marcamalaga:~$ date
Wed Mar 11 10:19:23 AM CET 2026
administrator@marcamalaga:~$ ffprobe http://10.20.10.80:8130/malagafmmobile
ffprobe version 7.1.3 Copyright (c) 2007-2025 the FFmpeg developers
built with gcc 14 (Debian 14.2.0-19)
configuration: --disable-decoder=amrnb --disable-gnutls --disable-liblensfun
--disable-libopencv --disable-podpages --disable-sndio --disable-stripping
--disable-omx --enable-avfilter --enable-chromaprint --enable-frei0r --enable-
gcrypt --enable-gpl --enable-ladspa --enable-libaom --enable-libaribb24
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-
libcdio --enable-libcodec2 --enable-libdav1d --enable-libdavs2 --enable-
libdc1394 --enable-libdrm --enable-libdvdnav --enable-libdvdread --enable-
libfdk-aac --enable-libflite --enable-libfontconfig --enable-libfreetype
--enable-libfribidi --enable-libgme --enable-libgsm --enable-libharfbuzz
--enable-libiec61883 --enable-libilbc --enable-libjack --enable-libjxl
--enable-libklvanc --enable-libkvazaar --enable-libmp3lame --enable-libmysofa
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264
--enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo
--enable-libpulse --enable-librabbitmq --enable-librist --enable-librsvg
--enable-librubberband --enable-libshine --enable-libsmbclient --enable-
libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libsvtav1
--enable-libtesseract --enable-libtheora --enable-libtwolame --enable-
libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libwebp --enable-libwebp --enable-libx264 --enable-
libx265 --enable-libxavs2 --enable-libxml2 --enable-libxvid --enable-libzimg
--enable-libzmq --enable-libzvbi --enable-lv2 --enable-nonfree --enable-openal
--enable-opencl --enable-opengl --enable-openssl --enable-postproc --enable-
pthreads --enable-shared --enable-version3 --incdir=/usr/include/x86_64-linux-
gnu --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --toolchain=hardened
--enable-vaapi --enable-libvpl --cc=x86_64-linux-gnu-gcc --cxx=x86_64-linux-
gnu-g++ --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 59. 39.100 / 59. 39.100
libavcodec 61. 19.101 / 61. 19.101
libavformat 61. 7.100 / 61. 7.100
libavdevice 61. 3.100 / 61. 3.100
libavfilter 10. 4.100 / 10. 4.100
libswscale 8. 3.100 / 8. 3.100
libswresample 5. 3.100 / 5. 3.100
libpostproc 58. 3.100 / 58. 3.100
Input #0, mp3, from 'http://10.20.10.80:8130/malagafmmobile':
Metadata:
icy-br : 170
icy-description : : Radio MARCA MA :
icy-genre : Sport Radio
icy-name : : Radio MARCA MA :
icy-pub : 1
icy-url : www.radiomarca.com
StreamTitle :
Duration: N/A, start: 0.000000, bitrate: 191 kb/s
Stream #0:0: Audio: mp3 (mp3float), 44100 Hz, stereo, fltp, 191 kb/s
administrator@marcamalaga:~$
administrator@marcamalaga:~$
administrator@marcamalaga:~$ date
Wed Mar 11 10:19:44 AM CET 2026
administrator@marcamalaga:~$ ffprobe http://10.20.10.80:8130/malagafmmobile
ffprobe version 7.1.3 Copyright (c) 2007-2025 the FFmpeg developers
built with gcc 14 (Debian 14.2.0-19)
configuration: --disable-decoder=amrnb --disable-gnutls --disable-liblensfun
--disable-libopencv --disable-podpages --disable-sndio --disable-stripping
--disable-omx --enable-avfilter --enable-chromaprint --enable-frei0r --enable-
gcrypt --enable-gpl --enable-ladspa --enable-libaom --enable-libaribb24
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-
libcdio --enable-libcodec2 --enable-libdav1d --enable-libdavs2 --enable-
libdc1394 --enable-libdrm --enable-libdvdnav --enable-libdvdread --enable-
libfdk-aac --enable-libflite --enable-libfontconfig --enable-libfreetype
--enable-libfribidi --enable-libgme --enable-libgsm --enable-libharfbuzz
--enable-libiec61883 --enable-libilbc --enable-libjack --enable-libjxl
--enable-libklvanc --enable-libkvazaar --enable-libmp3lame --enable-libmysofa
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264
--enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo
--enable-libpulse --enable-librabbitmq --enable-librist --enable-librsvg
--enable-librubberband --enable-libshine --enable-libsmbclient --enable-
libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libsvtav1
--enable-libtesseract --enable-libtheora --enable-libtwolame --enable-
libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libwebp --enable-libwebp --enable-libx264 --enable-
libx265 --enable-libxavs2 --enable-libxml2 --enable-libxvid --enable-libzimg
--enable-libzmq --enable-libzvbi --enable-lv2 --enable-nonfree --enable-openal
--enable-opencl --enable-opengl --enable-openssl --enable-postproc --enable-
pthreads --enable-shared --enable-version3 --incdir=/usr/include/x86_64-linux-
gnu --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --toolchain=hardened
--enable-vaapi --enable-libvpl --cc=x86_64-linux-gnu-gcc --cxx=x86_64-linux-
gnu-g++ --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 59. 39.100 / 59. 39.100
libavcodec 61. 19.101 / 61. 19.101
libavformat 61. 7.100 / 61. 7.100
libavdevice 61. 3.100 / 61. 3.100
libavfilter 10. 4.100 / 10. 4.100
libswscale 8. 3.100 / 8. 3.100
libswresample 5. 3.100 / 5. 3.100
libpostproc 58. 3.100 / 58. 3.100
[tcp @ 0x561036562fc0] Connection to tcp://10.20.10.80:8130 failed: Connection
timed out
http://10.20.10.80:8130/malagafmmobile: Connection timed out
The problem happens on VIRTUAL MACHINES (PROXMOX 9 guests) using virtio
drivers.
I have experienced same behaviour on dist-upgraded Bookworm VMs with
latest kernel.
All VMs worked as expected and are inproduction without any issues
before dist-upgrading them.
Machines still not dist-upgraded work flawless.
The problem is fully consistent with kernel upgrade... just reboot to
previous kernel to resume work.
* What outcome did you expect instead?
Regular operation of the networking stack
-- System Information:
Debian Release: 13.3
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.12.63+deb13-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-6.12.73+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-6.12.73+deb13-amd64 recommends:
ii apparmor 4.1.0-1
Versions of packages linux-image-6.12.73+deb13-amd64 suggests:
pn debian-kernel-handbook <none>
pn firmware-linux-free <none>
ii grub-efi-amd64 2.12-9
pn linux-doc-6.12 <none>
