Comment 3 for bug 2021956

I also experience this issue on a freshly installed Ubuntu 22.04 Desktop with no printers atteched.

First I give an overview of my system and then I'll try to add the missing information.

*** Kernel version: ***
# uname -a
Linux hostname 5.15.0-76-generic #83-Ubuntu SMP Thu Jun 15 19:16:32 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

*** OS information: ***
# cat /etc/os-release
PRETTY_NAME="Ubuntu 22.04.2 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.2 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy

*** List of installed Snaps: ***
root@hostname:~# snap list
Name Version Revision Tracking Herausgeber Hinweise
bare 1.0 5 latest/stable canonical✓ base
chromium 114.0.5735.198 2529 latest/stable canonical✓ -
core18 20230530 2785 latest/stable canonical✓ base
core20 20230622 1974 latest/stable canonical✓ base
core22 20230703 817 latest/stable canonical✓ base
cups 2.4.6-4 980 latest/stable openprinting✓ -
firefox 115.0.2-1 2908 latest/stable mozilla✓ -
gnome-3-28-1804 3.28.0-19-g98f9e67.98f9e67 198 latest/stable canonical✓ -
gnome-3-38-2004 0+git.efb213a 143 latest/stable canonical✓ -
gnome-42-2204 0+git.ff35a85 120 latest/stable canonical✓ -
gtk-common-themes 0.1-81-g442e511 1535 latest/stable canonical✓ -
mqtt-explorer 0.3.5 29 latest/stable thomasnordquist -
snapd 2.59.5 19457 latest/stable canonical✓ snapd

*** Segfault in the syslog: ***
# less /var/log/syslog:
Jul 20 09:48:29 hostname kernel: [ 86.133013] audit: type=1326 audit(1689839309.216:87): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=snap.cups.cupsd pid=8278 comm="cupsd" exe="/snap/cups/980/sbin/cupsd" sig=0 arch=c000003e syscall=93 compat=0 ip=0x7fd3108a8c4b code=0x50000
Jul 20 09:48:30 hostname kernel: [ 87.194090] audit: type=1326 audit(1689839310.280:88): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=snap.cups.cupsd pid=8280 comm="cups-proxyd" exe="/snap/cups/980/sbin/cups-proxyd" sig=0 arch=c000003e syscall=314 compat=0 ip=0x7f652264ca3d code=0x50000
Jul 20 09:48:30 hostname kernel: [ 87.861485] cups-proxyd[8280]: segfault at 18 ip 000056043483ad75 sp 00007fffff58ad80 error 4 in cups-proxyd[560434837000+7000]
Jul 20 09:48:30 hostname kernel: [ 87.861534] Code: 83 3d ee b2 00 00 00 41 54 55 48 89 fd 53 0f 85 f4 00 00 00 48 8d 1d 69 3d 00 00 48 63 45 1c 48 89 df 48 c1 e0 05 48 03 45 08 <48> 8b 50 18 8b 70 14 e8 0f d0 ff ff 44 8b 65 18 48 89 c7 45 85 e4

*** cups-proxyd_log from the time of the system startup: ***
# cat /var/snap/cups/current/var/log/cups-proxyd_log
Thu Jul 20 09:48:29 2023 main() in THREAD 140072331107008
Thu Jul 20 09:48:29 2023 System CUPS: /run/cups/cups.sock
Thu Jul 20 09:48:29 2023 Proxy CUPS: /var/snap/cups/common/run/cups.sock
Thu Jul 20 09:48:29 2023 cups-proxyd version 1.0 starting.
Thu Jul 20 09:48:29 2023 Check whether both CUPS daemons are running.
Thu Jul 20 09:48:29 2023 cups-proxyd: Creating http connection to CUPS daemon via domain socket: /var/snap/cups/common/run/cups.sock
Thu Jul 20 09:48:29 2023 cups-proxyd: Failed creating http connection to CUPS daemon via domain socket: /var/snap/cups/common/run/cups.sock
Thu Jul 20 09:48:30 2023 cups-proxyd: Creating http connection to CUPS daemon via domain socket: /var/snap/cups/common/run/cups.sock
Thu Jul 20 09:48:30 2023 cups-proxyd: Creating http connection to CUPS daemon via domain socket: /run/cups/cups.sock
Thu Jul 20 09:48:30 2023 cups-proxyd: Closing connection to proxy CUPS daemon.
Thu Jul 20 09:48:30 2023 cups-proxyd: Closing connection to system's CUPS daemon.
Thu Jul 20 09:48:30 2023 cups-proxyd (/var/snap/cups/common/run/cups.sock): cupsEnumDests
Thu Jul 20 09:48:30 2023 Using signal handler SIGNAL
Thu Jul 20 09:48:30 2023 [Avahi Browser] Avahi server connection got available, setting up service browsers.
Thu Jul 20 09:48:30 2023 Creating subscription to D-Bus notifications on the system's CUPS daemon.
Thu Jul 20 09:48:30 2023 cups-proxyd: Creating http connection to CUPS daemon via domain socket: /run/cups/cups.sock
Thu Jul 20 09:48:30 2023 cups-proxyd: Closing connection to system's CUPS daemon.
Thu Jul 20 09:48:30 2023 Updating queues on proxy CUPS in 500 msecs
Thu Jul 20 09:48:30 2023 browse_callback() in THREAD 140072331107008
Thu Jul 20 09:48:30 2023 [Avahi Browser] CACHE_EXHAUSTED
Thu Jul 20 09:48:30 2023 browse_callback() in THREAD 140072331107008
Thu Jul 20 09:48:30 2023 [Avahi Browser] ALL_FOR_NOW
Thu Jul 20 09:48:30 2023 browse_callback() in THREAD 140072331107008
Thu Jul 20 09:48:30 2023 [Avahi Browser] CACHE_EXHAUSTED
Thu Jul 20 09:48:30 2023 browse_callback() in THREAD 140072331107008
Thu Jul 20 09:48:30 2023 [Avahi Browser] ALL_FOR_NOW
Thu Jul 20 09:48:30 2023 cups-proxyd (/run/cups/cups.sock): cupsEnumDests
Thu Jul 20 09:48:30 2023 Cloning queues from the system to the proxy.

*** Requested information: ***
# lpstat -v
lpstat: Keine Druckziele hinzugefügt.
# driverless
# driverless --std-ipp-uris
# ippfind

*** Manually starting cups-proxyd in debug mode: ***
# /snap/cups/980/sbin/cups-proxyd --debug /var/snap/cups/common/run/cups.sock /run/cups/cups.sock -l --logdir /var/snap/cups/980/var/log
Thu Jul 20 09:57:23 2023 Reading command line option --debug, turning on debug mode (Log on standard error).
Thu Jul 20 09:57:23 2023 Reading command line: /var/snap/cups/common/run/cups.sock -> Proxy cupsd hostname:port or socket
Thu Jul 20 09:57:23 2023 Reading command line: /run/cups/cups.sock -> System cupsd hostname:port or socket
Thu Jul 20 09:57:23 2023 Reading command line option -l, turning on debug mode (Log into log file ).
Thu Jul 20 09:57:23 2023 Reading command line: --logdir
Thu Jul 20 09:57:23 2023 Reading command line: /var/snap/cups/980/var/log
Thu Jul 20 09:57:23 2023 Set log directory to /var/snap/cups/980/var/log.
Thu Jul 20 09:57:23 2023 main() in THREAD 139931143576256
Thu Jul 20 09:57:23 2023 System CUPS: /run/cups/cups.sock
Thu Jul 20 09:57:23 2023 Proxy CUPS: /var/snap/cups/common/run/cups.sock
Thu Jul 20 09:57:23 2023 cups-proxyd version 1.0 starting.
Thu Jul 20 09:57:23 2023 Check whether both CUPS daemons are running.
Thu Jul 20 09:57:23 2023 cups-proxyd: Creating http connection to CUPS daemon via domain socket: /var/snap/cups/common/run/cups.sock
Thu Jul 20 09:57:23 2023 cups-proxyd: Creating http connection to CUPS daemon via domain socket: /run/cups/cups.sock
Thu Jul 20 09:57:23 2023 cups-proxyd: Closing connection to proxy CUPS daemon.
Thu Jul 20 09:57:23 2023 cups-proxyd: Closing connection to system's CUPS daemon.
Thu Jul 20 09:57:23 2023 cups-proxyd (/var/snap/cups/common/run/cups.sock): cupsEnumDests
Thu Jul 20 09:57:23 2023 Using signal handler SIGNAL
Thu Jul 20 09:57:23 2023 [Avahi Browser] Avahi server connection got available, setting up service browsers.
Thu Jul 20 09:57:23 2023 Creating subscription to D-Bus notifications on the system's CUPS daemon.
Thu Jul 20 09:57:23 2023 cups-proxyd: Creating http connection to CUPS daemon via domain socket: /run/cups/cups.sock
Thu Jul 20 09:57:23 2023 cups-proxyd: Closing connection to system's CUPS daemon.
Thu Jul 20 09:57:23 2023 Updating queues on proxy CUPS in 500 msecs
Thu Jul 20 09:57:23 2023 browse_callback() in THREAD 139931143576256
Thu Jul 20 09:57:23 2023 [Avahi Browser] CACHE_EXHAUSTED
Thu Jul 20 09:57:23 2023 browse_callback() in THREAD 139931143576256
Thu Jul 20 09:57:23 2023 [Avahi Browser] ALL_FOR_NOW
Thu Jul 20 09:57:23 2023 browse_callback() in THREAD 139931143576256
Thu Jul 20 09:57:23 2023 [Avahi Browser] CACHE_EXHAUSTED
Thu Jul 20 09:57:23 2023 browse_callback() in THREAD 139931143576256
Thu Jul 20 09:57:23 2023 [Avahi Browser] ALL_FOR_NOW
Thu Jul 20 09:57:23 2023 cups-proxyd (/run/cups/cups.sock): cupsEnumDests
Thu Jul 20 09:57:23 2023 Cloning queues from the system to the proxy.
Speicherzugriffsfehler (Speicherabzug geschrieben)

Let me know if you need any additional information.