Thunar crashes when I have multiple files highlighted and drag then drop them

Bug #1472050 reported by Jason Byrne on 2015-07-07
50
This bug affects 10 people
Affects Status Importance Assigned to Milestone
thunar (Ubuntu)
Undecided
Unassigned

Bug Description

Thunar crashes in Xubuntu 15.10 when I have multiple files highlighted and drag then drop them from one folder to another. One window open using tabs.. Crash happens right after the drop, with one of the files looking like it remained in the original folder but after restarting Thunar I can see that everything I dragged did end up in the folder I dropped them in.

affects: xfdesktop4 (Ubuntu) → thunar (Ubuntu)
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in thunar (Ubuntu):
status: New → Confirmed
Ulrich von Augsburg (stulrich) wrote :

I can confirm this bug in Thunar 1.6.10 on two independently installed Xubuntu 15.10 PCs showing the exact same Thunar crash when moving multiply selected files in Thunar from on folder to another folder. So I can pretty much exclude wrong configuration of one single installation.

Since Thunar disappears and doesn't show an error, I find it difficult to encircle this bug, but it happens a lot here. Maybe it's when I move the selected files from one folder to another folder and the two folders are on different partitions?

How can I provide more information, please?

Ulrich von Augsburg (stulrich) wrote :

The crash bug doesn't seem to have any connection to moving files between different partitions.
I just selected all the hand-full of the files from a sub-folder and moved them with the mouse to the parent-folder when Thunar crashed, and apport produced the attached log. Like the original poster said, despite the crash the files reached their destination, so the crash appears after Thunar complets the moving operation.

Can we make apport to log more details about how Thunar crashes?

Ulrich von Augsburg (stulrich) wrote :

For the first time here, Thunar's crash has been shown on the desktop by Apport, after Thunar had just finished moving files (in particular between partitions linked via folders) .

"/var/log/apport.log" :
>>>
ERROR: apport (pid 20764) Fri Sep 25 10:52:44 2015: called for pid 1888, signal 11, core limit 0
ERROR: apport (pid 20764) Fri Sep 25 10:52:44 2015: executable: /usr/bin/thunar (command line "Thunar --sm-client-id 255b0c743-5575-40bb-8d2d-5f68f27285f1 --daemon")
ERROR: apport (pid 20764) Fri Sep 25 10:52:44 2015: gdbus call error: Error: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files

ERROR: apport (pid 20764) Fri Sep 25 10:52:44 2015: debug: session gdbus call:
ERROR: apport (pid 20764) Fri Sep 25 10:52:46 2015: wrote report /var/crash/_usr_bin_thunar.1000.crash
<<<

And attached below is the longer file "/var/crash/_usr_bin_thunar.1000.crash" and I just remove the binary-only dump data.

Jens Herrmann (bugs-u) wrote :

I can reproduce this bug but its slightly different. While drag and drop does not crash thunar using the clipboard does. Thunar terminates itself with a segmentation fault:

(thunar:11802): GLib-GObject-WARNING **: invalid uninstantiatable type '(null)' in cast to 'GObject'

(thunar:11802): GLib-GObject-CRITICAL **: g_object_set_qdata: assertion 'G_IS_OBJECT (object)' failed
Segmentation fault

Jens Herrmann (bugs-u) wrote :

It seems this bug was reported before. Take a look at https://bugs.launchpad.net/ubuntu/+source/thunar/+bug/1439288

Ulrich von Augsburg (stulrich) wrote :

I don't think this bug has been reported before, for sure it wasn't there in Xubuntu 14 LTS which I used from the beginning without problems.

On the very same machines (note plural) where Thunar in 14 LTS runs fine, Thunar in Xubuntu 15.10 crashes all the time.

I can confirm however what Jens Herrmann wrote: Thunar crashes also when moving files via the clipboard. And when renaming files. And when using the mouse.
Basically Thunar crashes regularly whenever you move or rename a file.

This Thunar bug is a killer bug rendering Xubuntu to be unusable, but it doesn't happen for all users.

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