Bug 697890 – g_hash_table_foreach: assertion `version == hash_table->version' failed

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Bug 697890 - g_hash_table_foreach: assertion `version == hash_table->version' failed


Summary:	g_hash_table_foreach: assertion `version == hash_table->version' failed


Status:	RESOLVED FIXED

Product:	nautilus
Classification:	Core
Component:	general
Version:	3.8.x
Hardware:	Other Linux

Importance:	Normal normal
Target Milestone:	---
Assigned To:	Nautilus Maintainers
QA Contact:	Nautilus Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2013-04-12 15:37 UTC by Adam Dingle
Modified:	2014-02-17 23:46 UTC

See Also:
GNOME target:	---
GNOME version:	---

Description Adam Dingle 2013-04-12 15:37:25 UTC

I'm running Nautilus from git master on Ubuntu 13.04.

To see the problem:

1. Run Nautilus from a terminal.
2. In gedit, choose File->Open to open a file open dialog, then press Cancel to close the dialog.
3. Nautilus will emit an assertion:

(nautilus:14748): GLib-CRITICAL **: g_hash_table_foreach: assertion `version == hash_table->version' failed

The assertion is not fatal; Nautilus keeps running.  We should nevertheless investigate and fix this.

A stack trace is below.  It appears that some gsettings keys are changing when the dialog closes and that Nautilus is attempting to react to that.

+ Trace 231777

#0 g_logv
at /build/buildd/glib2.0-2.36.0/./glib/gmessages.c line 981
#1 g_log
at /build/buildd/glib2.0-2.36.0/./glib/gmessages.c line 1010
#2 g_closure_invoke
at /build/buildd/glib2.0-2.36.0/./gobject/gclosure.c line 777
#3 signal_emit_unlocked_R
at /build/buildd/glib2.0-2.36.0/./gobject/gsignal.c line 3584
#4 g_signal_emit_valist
at /build/buildd/glib2.0-2.36.0/./gobject/gsignal.c line 3328
#5 g_signal_emit
at /build/buildd/glib2.0-2.36.0/./gobject/gsignal.c line 3384
#6 g_settings_real_change_event
at /build/buildd/glib2.0-2.36.0/./gio/gsettings.c line 288
#7 ffi_call_unix64
from /usr/lib/x86_64-linux-gnu/libffi.so.6
#8 ffi_call
from /usr/lib/x86_64-linux-gnu/libffi.so.6
#9 g_cclosure_marshal_generic_va
at /build/buildd/glib2.0-2.36.0/./gobject/gclosure.c line 1550
#10 _g_closure_invoke_va
at /build/buildd/glib2.0-2.36.0/./gobject/gclosure.c line 840
#11 g_signal_emit_valist
at /build/buildd/glib2.0-2.36.0/./gobject/gsignal.c line 3234
#12 g_signal_emit
at /build/buildd/glib2.0-2.36.0/./gobject/gsignal.c line 3384
#13 settings_backend_keys_changed
at /build/buildd/glib2.0-2.36.0/./gio/gsettings.c line 404
#14 g_settings_backend_invoke_closure
at /build/buildd/glib2.0-2.36.0/./gio/gsettingsbackend.c line 271
#15 g_main_dispatch
at /build/buildd/glib2.0-2.36.0/./glib/gmain.c line 3054
#16 g_main_context_dispatch
at /build/buildd/glib2.0-2.36.0/./glib/gmain.c line 3630
#17 g_main_context_iterate
at /build/buildd/glib2.0-2.36.0/./glib/gmain.c line 3701
#18 g_main_context_iteration
at /build/buildd/glib2.0-2.36.0/./glib/gmain.c line 3762
#19 g_application_run
at /build/buildd/glib2.0-2.36.0/./gio/gapplication.c line 1623
#20 main
at nautilus-main.c line 104

Comment 1 Jussi Kukkonen 2013-11-24 22:41:06 UTC

It's this call in NautilusDirectory filtering_changed_callback():

	g_hash_table_foreach (directories, invalidate_one_count, NULL);

I don't immediately see what in invalidate_one_count would modify the hashtable but that seems to  be what happens.

Another questions is, why does gsettings think "show-hidden" is changing when Gedit FileChooser is closed?

Comment 2 Cosimo Cecchi 2014-02-17 23:46:14 UTC

Thanks, I pushed a fix for this to git master now.