Bug 2419469

Summary: [abrt] ibus: g_type_check_instance_is_fundamentally_a(): ibus-extension-gtk3 killed by SIGSEGV
Product: [Fedora] Fedora Reporter: Brandon Nielsen <nielsenb>
Component: ibusAssignee: fujiwara <tfujiwar>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 44CC: i18n-bugs, nielsenb, tfujiwar
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
URL: https://retrace.fedoraproject.org/faf/reports/bthash/ff05d71fa1d3c64982be97a7e53ae22ea62d8bf
Whiteboard: abrt_hash:62ba5c30e260233bacad3aa6371643c18d581460;VARIANT_ID=workstation;
Fixed In Version: ibus-1.5.33-5.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-01-14 00:54:31 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
File: proc_pid_status
none
File: maps
none
File: limits
none
File: environ
none
File: open_fds
none
File: mountinfo
none
File: os_info
none
File: cpuinfo
none
File: core_backtrace
none
File: exploitable
none
File: dso_list
none
File: backtrace none

Description Brandon Nielsen 2025-12-05 17:16:54 UTC 
Description of problem:
1 - Install Fedora Workstation Live
2 - Complete gnome-initial-setup (us-keyboard layout, US - Chicago TZ)

Error occurs when session switches to newly created user.

Version-Release number of selected component:
ibus-1.5.34~alpha1-2.fc44

Additional info:
reporter:       libreport-2.17.15
type:           CCpp
reason:         ibus-extension-gtk3 killed by SIGSEGV
journald_cursor: s=ffe23fd631844338a626f64d45079161;i=a55;b=f56e4fbe48744dee9cafb8372854cd9f;m=667d144;t=645377226a1e9;x=b2139625369d929b
executable:     /usr/libexec/ibus-extension-gtk3
cmdline:        /usr/libexec/ibus-extension-gtk3
cgroup:         0::/user.slice/user-1000.slice/user/session.slice/org.gnome.Shell
rootdir:        /
uid:            1000
kernel:         6.18.0-65.fc44.x86_64
package:        ibus-1.5.34~alpha1-2.fc44
runlevel:       /bin/sh: line 1: runlevel: command not found
backtrace_rating: 4
crash_function: g_type_check_instance_is_fundamentally_a

Truncated backtrace:
Thread no. 1 (22 frames)
 #0 g_type_check_instance_is_fundamentally_a at ../gobject/gtype.c:3915
 #2 panel_binding_construct at /usr/src/debug/ibus-1.5.34
 #3 panel_binding_new at /usr/src/debug/ibus-1.5.34
 #4 extension_gtk_bus_name_acquired_cb at /usr/src/debug/ibus-1.5.34
 #5 _extension_gtk_bus_name_acquired_cb_gd_bus_signal_callback at /usr/src/debug/ibus-1.5.34
 #6 emit_signal_instance_in_idle_cb at ../gio/gdbusconnection.c:4207
 #9 g_main_context_dispatch_unlocked at ../glib/gmain.c:4425
 #10 g_main_context_iterate_unlocked at ../glib/gmain.c:4490
 #12 gtk_main at ../gtk/gtkmain.c:1332
 #13 _g_closure_invoke_va at ../gobject/gclosure.c:980
 #14 signal_emit_valist_unlocked at ../gobject/gsignal.c:3439
 #16 g_application_impl_method_call at ../gio/gapplicationimpl-dbus.c:200
 #17 call_in_idle_cb at ../gio/gdbusconnection.c:5476
 #20 g_main_context_dispatch_unlocked at ../glib/gmain.c:4425
 #21 g_main_context_iterate_unlocked at ../glib/gmain.c:4490
 #23 gtk_main at ../gtk/gtkmain.c:1332
 #24 _g_closure_invoke_va at ../gobject/gclosure.c:980
 #25 signal_emit_valist_unlocked at ../gobject/gsignal.c:3439
 #28 g_application_activate at ../gio/gapplication.c:2471
 #30 g_application_real_local_command_line at ../gio/gapplication.c:1201
 #31 g_application_run at ../gio/gapplication.c:2710
 #32 extension_gtk_main at /usr/src/debug/ibus-1.5.34
Comment 1 Brandon Nielsen 2025-12-05 17:16:57 UTC 
Created attachment 2117648 [details]
File: proc_pid_status
Comment 2 Brandon Nielsen 2025-12-05 17:16:59 UTC 
Created attachment 2117649 [details]
File: maps
Comment 3 Brandon Nielsen 2025-12-05 17:17:00 UTC 
Created attachment 2117650 [details]
File: limits
Comment 4 Brandon Nielsen 2025-12-05 17:17:01 UTC 
Created attachment 2117651 [details]
File: environ
Comment 5 Brandon Nielsen 2025-12-05 17:17:02 UTC 
Created attachment 2117652 [details]
File: open_fds
Comment 6 Brandon Nielsen 2025-12-05 17:17:03 UTC 
Created attachment 2117653 [details]
File: mountinfo
Comment 7 Brandon Nielsen 2025-12-05 17:17:04 UTC 
Created attachment 2117654 [details]
File: os_info
Comment 8 Brandon Nielsen 2025-12-05 17:17:05 UTC 
Created attachment 2117655 [details]
File: cpuinfo
Comment 9 Brandon Nielsen 2025-12-05 17:17:07 UTC 
Created attachment 2117656 [details]
File: core_backtrace
Comment 10 Brandon Nielsen 2025-12-05 17:17:08 UTC 
Created attachment 2117657 [details]
File: exploitable
Comment 11 Brandon Nielsen 2025-12-05 17:17:09 UTC 
Created attachment 2117658 [details]
File: dso_list
Comment 12 Brandon Nielsen 2025-12-05 17:17:10 UTC 
Created attachment 2117659 [details]
File: backtrace
Comment 13 fujiwara 2026-01-08 10:56:51 UTC 
I can reproduce this issue with a functional test and think the solution.
Comment 14 Fedora Update System 2026-01-12 01:39:00 UTC 
FEDORA-2026-75923f6815 (ibus-1.5.33-5.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-75923f6815
Comment 15 Fedora Update System 2026-01-13 01:27:58 UTC 
FEDORA-2026-75923f6815 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-75923f6815`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-75923f6815

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 16 Fedora Update System 2026-01-14 00:54:31 UTC 
FEDORA-2026-75923f6815 (ibus-1.5.33-5.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.