xfce4-screensaver-dialog crashed with SIGSEGV in g_main_context_dispatch()

[Jonathan Steinert]

While locked, I find that I have to tap a key (ex. shift) 5-6 times to bring up the password prompt, each tap the screen will flash the password prompt and then immediately turn back off again. I do not know if this is related to the crash, but it is the only other mis-behavior of the lock screen.

Unlocking seems to work fine, and the machine does seem to be behaving otherwise.

$ lsb_release -rd
No LSB modules are available.
Description: Ubuntu Lunar Lobster (development branch)
Release: 23.04

$ apt policy xfce4-screensaver
xfce4-screensaver:
  Installed: 4.16.0-1
  Candidate: 4.16.0-1
  Version table:
 *** 4.16.0-1 500
        500 http://us.archive.ubuntu.com/ubuntu lunar/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
DistroRelease: Ubuntu 23.04
Package: xfce4-screensaver 4.16.0-1
ProcVersionSignature: Ubuntu 6.2.0-20.20-generic 6.2.6
Uname: Linux 6.2.0-20-generic x86_64
ApportVersion: 2.26.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CrashCounter: 1
CurrentDesktop: XFCE
Date: Wed Apr 12 02:02:45 2023
ExecutablePath: /usr/libexec/xfce4-screensaver-dialog
InstallationDate: Installed on 2023-04-10 (2 days ago)
InstallationMedia: Xubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221018)
JournalErrors: -- No entries --
ProcCmdline: /usr/libexec/xfce4-screensaver-dialog --monitor=0 --height=1440 --width=2560
ProcEnviron:
 LANG=en_US.UTF-8
 LANGUAGE=en_US
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
SegvAnalysis:
 Segfault happened at: 0x5599ae415ef1: mov (%rbx),%rdi
 PC (0x5599ae415ef1) ok
 source "(%rbx)" (0x90314d537f7a79d6) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: xfce4-screensaver
StacktraceTop:
 ?? ()
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 gtk_main () from /lib/x86_64-linux-gnu/libgtk-3.so.0
Title: xfce4-screensaver-dialog crashed with SIGSEGV in g_main_context_dispatch()
UpgradeStatus: Upgraded to lunar on 2023-04-10 (1 days ago)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
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[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #2012826, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[Jonathan Steinert (youhouka)]

I'm getting errors saying that bug doesn't exist. Please advise on how I should proceed.

[Jonathan Steinert (youhouka)]

Oh, the system even says duplicate of private bug...

You advise me to read the other bug for workarounds or to supply additional information, but how can I do that if the bug is private?