Public bug reported:
Expected Behaviour
The gnome-subtitles application should open its main window, ready for a user
to load or create a subtitle file.
Actual Behaviour
When running the application from the command line, it prints debug information
related to GLib, GIO, and Enchant (spellcheck), and then immediately crashes
with a Stack overflow error before the main UI is visible.
Steps to Reproduce
Open a terminal.
Run the command: gnome-subtitles
Observe the application crash and the stack trace output in the terminal.
gnome-subtitles
GLib-GIO | Debug | _g_io_module_get_default: Found default implementation dconf
(DConfSettingsBackend) for ‘gsettings-backend’
GLib-GIO | Debug | _g_io_module_get_default: Found default implementation gvfs
(GDaemonVfs) for ‘gio-vfs’
GLib | Debug | unsetenv() is not thread-safe and should not be used after
threads are created
libenchant | Debug | broker.vala:193: reading ordering file
/usr/share/enchant-2/enchant.ordering
libenchant | Debug | broker.vala:188: could not open ordering file
/etc/enchant-2/enchant.ordering: No such file or directory
libenchant | Debug | broker.vala:188: could not open ordering file
/home/gdo/.config/enchant/enchant.ordering: No such file or directory
16:57:53.9 INFO [Spellcheck] Found Enchant version: 2
16:57:53.9 INFO [Spellcheck] Found 3 providers: hunspell,hspell,aspell
libenchant | Debug | broker.vala:351: listing dictionaries
<...SNIP - Omitted dictionary list for brevity - Should include full list in
report...>
16:57:54.0 INFO [Spellcheck] Found 33 languages:
en,en_AU,en_CA,en_ZA,en_GB,en_US,en_AU-variant_0,en_AU-variant_1,en_AU-w_accents,en_AU-wo_accents,en_CA-variant_0,en_CA-variant_1,en_CA-w_accents,en_CA-wo_accents,en_GB-ise,en_GB-ise-w_accents,en_GB-ise-wo_accents,en_GB-ize,en_GB-ize-w_accents,en_GB-ize-wo_accents,en_GB-variant_0,en_GB-variant_1,en_GB-w_accents,en_GB-wo_accents,en_US-variant_0,en_US-variant_1,en_US-w_accents,en_US-wo_accents,en-variant_0,en-variant_1,en-variant_2,en-w_accents,en-wo_accents
Stack overflow in unmanaged: IP: 0x78224054560c, fault addr: 0x7fff7a955ff8
Stack overflow: IP: 0x78224054560c, fault addr: 0x7fff7a94dff8
Stacktrace:
at <unknown> <0xffffffff>
at Gtk.Widget.set_Visible (bool) [0x00006] in
<c0bd3d7799cb459c91cf3d7a0afca1ac>:0
<...>
at GnomeSubtitles.Ui.MainUi.Show () [0x00000] in
<f6e7ee105a7c4d4794ce0db4e0a997b2>:0
at GnomeSubtitles.Core.Base.Init () [0x00082] in
<f6e7ee105a7c4d4794ce0db4e0a997b2>:0
at GnomeSubtitles.Core.Base.<Execute>m__0 () [0x00000] in
<f6e7ee105a7c4d4794ce0db4e0a997b2>:0
at GnomeSubtitles.Execution.ExecutionContext/<Execute>c__AnonStorey0.<>m__0
(object,System.EventArgs) [0x00000] in <f6e7ee105a7c4d4794ce0db4e0a997b2>:0
at (wrapper runtime-invoke) <Module>.runtime_invoke_void__this___object_object
(object,intptr,intptr,intptr) [0x0002a] in <f6e7ee105a7c4d4794ce0db4e0a997b2>:0
at <unknown> <0xffffffff>
at (wrapper managed-to-native)
System.Reflection.RuntimeMethodInfo.InternalInvoke
(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&)
[0x0000c] in <8611ac11d22247aabb4fd94490032492>:0
at System.Reflection.RuntimeMethodInfo.Invoke
(object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo)
[0x0007c] in <8611ac11d22247aabb4fd94490032492>:0
at System.Reflection.MethodBase.Invoke (object,object[]) [0x00000] in
<8611ac11d22247aabb4fd94490032492>:0
at System.Delegate.DynamicInvokeImpl (object[]) [0x0010d] in
<8611ac11d22247aabb4fd94490032492>:0
at System.MulticastDelegate.DynamicInvokeImpl (object[]) [0x0000b] in
<8611ac11d22247aabb4fd94490032492>:0
at System.Delegate.DynamicInvoke (object[]) [0x00000] in
<8611ac11d22247aabb4fd94490032492>:0
at GLib.Signal.ClosureInvokedCB (object,GLib.ClosureInvokedArgs) [0x0003d] in
<dd0cdd755d2541d5880043addb57cbac>:0
at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs) [0x0000c] in
<dd0cdd755d2541d5880043addb57cbac>:0
at GLib.SignalClosure.MarshalCallback
(intptr,intptr,uint,intptr,intptr,intptr) [0x00086] in
<dd0cdd755d2541d5880043addb57cbac>:0
at (wrapper native-to-managed) GLib.SignalClosure.MarshalCallback
(intptr,intptr,uint,intptr,intptr,intptr) <0x00087>
at <unknown> <0xffffffff>
at (wrapper managed-to-native) GLib.Application.g_application_run
(intptr,int,intptr) [0x0000c] in <c5cd160a0b6d443da6123bb87de62473>:0
at GLib.Application.Run (string,string[]) [0x0006f] in
<c5cd160a0b6d443da6123bb87de62473>:0
at GnomeSubtitles.Execution.ExecutionContext.Execute (System.Action) [0x00040]
in <f6e7ee105a7c4d4794ce0db4e0a997b2>:0
at GnomeSubtitles.Core.Base.Execute
(GnomeSubtitles.Execution.ExecutionContext) [0x00006] in
<f6e7ee105a7c4d4794ce0db4e0a997b2>:0
at GnomeSubtitles.Execution.Executable.Main (string[]) [0x00045] in
<f6e7ee105a7c4d4794ce0db4e0a997b2>:0
at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object
(object,intptr,intptr,intptr) [0x0002a] in <f6e7ee105a7c4d4794ce0db4e0a997b2>:0
ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: gnome-subtitles 1.8-1ubuntu2
ProcVersionSignature: Ubuntu 6.17.0-5.5-generic 6.17.0-rc7
Uname: Linux 6.17.0-5-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: GNOME
Date: Mon Oct 13 17:05:30 2025
InstallationDate: Installed on 2024-03-14 (578 days ago)
InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64
(20240220)
SourcePackage: gnome-subtitles
UpgradeStatus: Upgraded to questing on 2025-10-10 (3 days ago)
** Affects: gnome-subtitles (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug questing wayland-session
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https://bugs.launchpad.net/bugs/2127799
Title:
gnome-subtitles crashes immediately on launch with a Stack Overflow
error (SIGSEGV)
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