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Fedora Login Crash - Debug Findings
====================================
Date: 2026-05-26
Hostname: fedora
User: wathi
Package: gnome-session-50.0-1.fc44.x86_64 / glib2-2.88.1-1.fc44.x86_64

ROOT CAUSE
----------
gnome-session-init-worker (PID 8574) crashes with SIGABRT on every login attempt.
The crash is triggered by a GLib critical assertion: "A graphical session is already running!"

This means gnome-session-init-worker detects that graphical-session.target is already active
(from a previous crashed session that didn't clean up properly) and aborts itself via g_log_abort.

CORE DUMP BACKTRACE (thread 1):
  #0  __pthread_kill_implementation (libc.so.6)
  #1  raise (libc.so.6)
  #2  abort (libc.so.6)
  #3  _g_log_abort.lto_priv.0.cold (libglib-2.0.so.0)
  #4  g_log_default_handler (libglib-2.0.so.0)
  #5  g_logv (libglib-2.0.so.0)
  #6  g_log (libglib-2.0.so.0)
  #7  main (gnome-session-init-worker + 0x11ca)

GDM LOGS:
  gdm-password: gkr-pam: unable to locate daemon control file (normal on Fedora)
  gdm: GdmDisplay: Session never registered, failing

gnome-session-init-worker stderr:
  A graphical session is already running!

EVIDENCE
--------
- 7 coredumps for gnome-session-init-worker across multiple boots
- graphical-session.target is active in systemctl --user
- Session is created by GDM but worker crashes before registering back

RECOMMENDED FIX
---------------
1. From TTY (Ctrl+Alt+F3):
   systemctl --user stop graphical-session.target
   systemctl --user reset-failed
2. Or reboot
3. Check ~/.config/autostart/ for problematic entries (jetbrains-toolbox.desktop disabled)

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