Dear maintainers, On amd64, i have following error.... ==> /var/log/syslog-ng/current_logs/BY_FACILITY.kern.notice.log <== 2020-09-15T08:25:53+02:00 s_dev_kernel_kmsg@asus-190 kernel: 6,35313,87037029084,-;syslog-ng[10311]: segfault at 0 ip 00007fa46a2bf7b2 sp 00007ffed353fb30 error 6 in libsyslog-ng-3.19.so.0.0.0[7fa46a2a9000+5a000] 2020-09-15T08:25:53+02:00 s_dev_kernel_kmsg@asus-190 kernel: 6,35314,87037029092,-;Code: e8 c3 9b fe ff 4c 89 e7 e8 eb dc fe ff 48 89 c7 e8 23 ca fe ff e9 15 ff ff ff 66 0f 1f 44 00 00 48 8b 83 f0 00 00 00 48 89 df <c7> 00 00 00 00 00 48 83 c4 08 5b 5d 41 5c 41 5d e9 b9 fc ff ff 66 About the curent configuration, there is no disc full... ansible@asus-190:~$ df Sys. de fichiers blocs de 1K Utilisé Disponible Uti% Monté sur udev 6015136 0 6015136 0% /dev tmpfs 1213460 2924 1210536 1% /run /dev/mapper/vg_debian-lv_rootfs_crypt 927000 134336 728360 16% / /dev/mapper/vg_debian-lv_usr 7511832 5714960 1434140 80% /usr tmpfs 5120 4 5116 1% /run/lock tmpfs 2426900 57124 2369776 3% /dev/shm /dev/mapper/vg_debian-lv_boot 463826 193086 242273 45% /boot /dev/sda2 98304 39534 58770 41% /boot2/efi /dev/sdb1 191551 5199 186352 3% /boot/efi /dev/sdb5 2817056 1688848 965392 64% /debian_rescue /dev/mapper/vg_debian-lv_home 80388420 74191172 2894992 97% /home /dev/mapper/vg_debian-lv_tmp 943128 82076 795928 10% /tmp /dev/mapper/vg_debian-lv_var 860591 7183 808724 1% /var /dev/mapper/vg_debian-lv_var_cache 863632 140484 667980 18% /var/cache /dev/mapper/vg_debian-lv_var_lib 959909 69128 842002 8% /var/lib /dev/mapper/vg_debian-lv_var_lib_apt 1057092 431004 563584 44% /var/lib/apt /dev/mapper/vg_debian-lv_var_log 560120 225992 293132 44% /var/log cgroup 6067296 0 6067296 0% /sys/fs/cgroup /dev/sde3 862818100 120357724 698561908 15% /mnt/backup ansible@asus-190:~$ My syslog configuration is in attached file Thanks in advance for your help Jean-Marc
Hi Jean-Marc, Please check if a core file is available related to the segmentation fault. If there is any please make it available for me/us. Also, can you run syslog-ng-debun with the -r parameter and send the generated report bundle? Another question, is the segmentation fault reproducible? Is syslog-ng crashing frequently?
Dear Maintainer, hello Jean-Marc, I tried to get some more information from the kernel message, but found just that it points to this function [1]. There I assume that the argument s is a null pointer. Bug I fear that without a proper backtrace this might not yet enough to fix the fault. For getting a coredump or using gdb you might have a look at [2]. For the latter you might want to first install the package syslog-ng-dbg. Kind regards, Bernhard [1] https://sources.debian.org/src/syslog-ng/3.19.1-5/lib/logproto/logproto-server.h/#L163 [2] https://wiki.debian.org/HowToGetABacktrace#Core_dump https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols
Hi Jean-Marc, Please check if a core file is available related to the segmentation fault. If there is any please make it available for me/us. Also, can you run syslog-ng-debun with the -r parameter and send the generated report bundle? Another question, is the segmentation fault reproducible? Is syslog-ng crashing frequently?
We believe that the bug you reported is fixed in the latest version of
syslog-ng, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 970355@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
SZALAY Attila <sasa@debian.org> (supplier of updated syslog-ng package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sun, 18 Oct 2026 20:33:27 +0100
Source: syslog-ng
Architecture: source
Version: 4.12.0-1
Distribution: unstable
Urgency: medium
Maintainer: syslog-ng maintainers <syslog-ng-maintainers@alioth-lists.debian.net>
Changed-By: SZALAY Attila <sasa@debian.org>
Closes: 831908 833283 844372 970355 992428 996246 1050692 1111518 1138428 1143061
Changes:
syslog-ng (4.12.0-1) unstable; urgency=medium
.
* New upstream version 4.12.0 (Closes: #1143061, #1138428)
* Clean up old and obsolated bugs (Closes: #831908, #844372, #970355, #992428, #996246)
* Prepare new temporary release
* Update debian patches
* Dropping removed SCL modules
* Re-enable secure logging module
* Add new SCL config files to the syslog-ng-scl module
* debian: Migrate legacy syslog-ng configs on upgrade (Closes: #833283)
* debian: Update default configs to 4.12 (Closes: #1050692)
* debian: Fix init script LSB header.
Thanks to Andrew Bower <andrew@bower.uk> (Closes: #1111518)
* Commenting about the GRPC module into the debian/README.source
Checksums-Sha1:
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b5b0514b17f66a835a07713ea4307b91b2b199b2 2491465 syslog-ng_4.12.0.orig.tar.gz
50cdfcccc94a08e6a082ffe114b8d03637a0a463 47660 syslog-ng_4.12.0-1.debian.tar.xz
0672b083121e98c2b1283c699c7a417241c367a6 18385 syslog-ng_4.12.0-1_amd64.buildinfo
Checksums-Sha256:
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549d8c74f837497531d3a0ebab7ad33939ad2e0c361c94d53a6e74fc93f59d9b 47660 syslog-ng_4.12.0-1.debian.tar.xz
cd30df305354247739c8b4c1ee30801f1f520bc2ddf8bc2bb94160c863f93cfd 18385 syslog-ng_4.12.0-1_amd64.buildinfo
Files:
4dcf4cbc3937264e40a5873abf0a6337 4299 admin optional syslog-ng_4.12.0-1.dsc
bc6bf2abe2705ac7e8daa36118c61785 2491465 admin optional syslog-ng_4.12.0.orig.tar.gz
406376180601ff6f9dd34d72393a9e59 47660 admin optional syslog-ng_4.12.0-1.debian.tar.xz
d2a6677d824c8d83d7e03603b8e60815 18385 admin optional syslog-ng_4.12.0-1_amd64.buildinfo
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Dears mainteners,
Please find bellow more information on recent Debian . Initial issue is
always here ...
ansible@hn-asusgl752-400:~$ uname -a
Linux hn-asusgl752-400 7.1.8+deb14.1-amd64 #1 SMP PREEMPT_DYNAMIC Debian
7.1.8-2 (2026-08-15) x86_64 GNU/Linux
ansible@hn-asusgl752-400:~$ cat /etc/debian_version
13.7
ansible@hn-asusgl752-400:~$
ansible@hn-asusgl752-400:~$ apt policy syslog-ng
syslog-ng:
Installé : 4.8.1-5+deb13u1
Candidat : 4.8.1-5+deb13u1
Table de version :
4.8.1-7 80
80 http://ftp.de.debian.org/debian forky/main amd64 Packages
*** 4.8.1-5+deb13u1 500
500 http://ftp.de.debian.org/debian trixie/main amd64 Packages
100 /var/lib/dpkg/status
3.38.1-5+deb12u1 90
90 http://ftp.de.debian.org/debian bookworm/main amd64 Packages
ansible@hn-asusgl752-400:~$
ansible@hn-asusgl752-400:~$ sudo syslog-ng-debun -r
Syslog-NG DEBUg buNdle generator
Start environment detection
Linux-type FHS detected
Distributor ID: Debian
Description: Debian GNU/Linux 13 (trixie)
Release: 13
Codename: trixie
Operating System Name: Linux
Debian specific checks
Check package files integrity
Package syslog-ng files are intact
??5?????? c /etc/default/syslog-ng
??5?????? c /etc/logrotate.d/syslog-ng
missing /etc/syslog-ng/patterndb.d
missing /etc/syslog-ng/python
missing c /etc/syslog-ng/python/README.md
??5?????? c /etc/syslog-ng/syslog-ng.conf
Package syslog-ng-core files are intact
Package syslog-ng-mod-mongodb files are intact
Package syslog-ng-mod-sql files are intact
Package syslog-ng-scl files are intact
list syslog-related packages
Start general info collection
System's full uname: Linux hn-asusgl752-400 7.1.8+deb14.1-amd64 #1 SMP
PREEMPT_DYNAMIC Debian 7.1.8-2 (2026-08-15) x86_64 GNU/Linux
Getting network-interface information: Success
Getting network routes: Success
Getting DNS resolution-related information: Done
List all processes
Mount and disk free info collection
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
Start Syslog-specific info collection
Copy configuration files from /etc/syslog-ng
75 blocks
Copy SCL configuration files
309 blocks
Gathering PKI information... done.
SVpid: 7811 SNGpid: 7812 Chpids:
Syslog-ng's exact version: syslog-ng 4 (4.8.1)
/usr/sbin/syslog-ng-ctl stats
/usr/sbin/syslog-ng-ctl query get *
/usr/sbin/syslog-ng-ctl show-license-info
/usr/sbin/syslog-ng-ctl credentials status
32 blocks
dpkg-query: no path found matching pattern
/lib/x86_64-linux-gnu/libglib-2.0.so.0
dpkg-query: no path found matching pattern /lib/x86_64-linux-gnu/libc.so.6
dpkg-query: no path found matching pattern /lib/x86_64-linux-gnu/libm.so.6
dpkg-query: no path found matching pattern
/lib/x86_64-linux-gnu/libgmodule-2.0.so.0
dpkg-query: no path found matching pattern /lib/x86_64-linux-gnu/libcap.so.2
dpkg-query: no path found matching pattern
/lib/x86_64-linux-gnu/libpcre2-8.so.0
dpkg-query: no path found matching pattern
/lib/x86_64-linux-gnu/libivykis.so.0
dpkg-query: no path found matching pattern
/lib/x86_64-linux-gnu/libjson-c.so.5
dpkg-query: no path found matching pattern
/lib/x86_64-linux-gnu/libsystemd.so.0
dpkg-query: no path found matching pattern /lib/x86_64-linux-gnu/libssl.so.3
dpkg-query: no path found matching pattern
/lib/x86_64-linux-gnu/libcrypto.so.3
dpkg-query: no path found matching pattern
/lib/x86_64-linux-gnu/libatomic.so.1
dpkg-query: no path found matching pattern /lib/x86_64-linux-gnu/libz.so.1
dpkg-query: no path found matching pattern
/lib/x86_64-linux-gnu/libzstd.so.1
dpkg-query: package 'diversion' is not installed and no information is
available
Use dpkg --info (= dpkg-deb --info) to examine archive files.
dpkg-query: package 'by' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files.
dpkg-query: package 'from' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files.
Detecting init system: falling back to SystemV init style...
Generating second batch of statistics
/usr/sbin/syslog-ng-ctl stats
/usr/sbin/syslog-ng-ctl query get *
Generating hashes... done.
Debug Bundle generation: Done.
tar: ./var/syslog-ng.ctl: socket ignored
Terminating live message watcher:
Furthermore ...
Still
1007537.810115] syslog-ng[8019]: segfault at 0 ip 00007fe8b66885bf sp
00007ffcc8d50970 error 6 in
libsyslog-ng-3.28.so.0.0.0[475bf,7fe8b6671000+64000] likely on CPU 1
(core 1, socket 0)
[1007537.810160] Code: 00 48 85 c0 74 05 48 89 ea ff d0 f6 45 04 01 74
32 0f b6 85 60 02 00 00 a8 04 0f 85 ab 00 00 00 48 8b 85 68 01 00 00 48
89 ef <c7> 00 00 00 00 00 48 83 c4 08 5d 41
5c e9 0f fc ff ff 0f 1f 80 00
[1007603.488577] syslog-ng[9963]: segfault at 0 ip 00007fe8b66885bf sp
00007ffcc8d50970 error 6 in
libsyslog-ng-3.28.so.0.0.0[475bf,7fe8b6671000+64000] likely on CPU 1
(core 1, socket 0)
[1007603.488592] Code: 00 48 85 c0 74 05 48 89 ea ff d0 f6 45 04 01 74
32 0f b6 85 60 02 00 00 a8 04 0f 85 ab 00 00 00 48 8b 85 68 01 00 00 48
89 ef <c7> 00 00 00 00 00 48 83 c4 08 5d 41
5c e9 0f fc ff ff 0f 1f 80 00
Best regards