[2.2.3] client crashing Wingpanel Elementary OS

[lchigami]

Expected behaviour

No crashes...

Actual behaviour

Wingpanel crashing randomly and Owncloud client restarting constantly...

Steps to reproduce

1. Fresh install ElementaryOS Loki Stable
2. Install Owncloud client from repository (Ubuntu 16.04)
3. Connect to your account

Server configuration

Operating system: Debian Jessie

Web server: Apache2

Database: PostgreSQL

PHP version: 5.6.24

ownCloud version: 9.1.0 (stable)

Storage backend (external storage): no

Client configuration

Client version: 2.2.3

Operating system: ElementaryOS Loki 0.4.0 (Built on Ubuntu 16.04 LTS)

OS language: English

Installation path of client: /usr/bin/owncloud

Logs

1. Client logfile: https://gist.github.com/lchigami/43d37fc63f19ac03af5d1afb03096e67
2. Syslog error: https://gist.github.com/lchigami/22aded9d3a94a9e39cb81cc3f1b6e251
3. Web server error log: No error on server side, since it's a client-side crashing.
4. Server logfile: ownCloud log (data/owncloud.log): No error on server side, since it's a client-side crashing.

[dragotin]

Hmm, this sounds like a package incompatibility. We need more info to nail this down. Or somebody who has that system and try...

[lchigami]

Hmm, this sounds like a package incompatibility. We need more info to nail this down. Or somebody who has that system and try...

I can provide any other info about this issue...
I just don't know what other information I could provide to help...

[lchigami]

Maybe this issue is related to #5164 ?
I'm using Qt version 5.5.1

[guruz]

Yes, it sounds most probably related to tray menu etc.
Do you have a build of the client?

[guruz]

Can you contact someone from Wingpanel or whatever? Becuase we can't workaround every possible Linux OS issue, we're already having several workarounds for this and that.

[lchigami]

Can you contact someone from Wingpanel or whatever? Becuase we can't workaround every possible Linux OS issue, we're already having several workarounds for this and that.

Already contacted the Wingpanel team, but no response...

Yes, it sounds most probably related to tray menu etc.
Do you have a build of the client?

$ owncloud --version
Gtk-Message: Failed to load module "pantheon-filechooser-module"
ownCloud version 2.2.3
Using Qt 5.5.1

$ dpkg -l | grep owncloud

ii	libowncloudsync0:amd64	2.2.3-1.4	amd64	the ownCloud sync library
ii	owncloud-client:amd64	2.2.3-1.4	amd64	The ownCloud sync client - github.com/owncloud/client
ii	owncloud-client-l10n	2.2.3-1.4	all	Internationalization files for ownCloud

[lchigami]

Trying the daily build client...
I've noticed a slight decrease of error frequency, but still Wingpanel is crashing...

[TKLCZ]

The same situation on my laptop with a fresh installation of Elementary OS Loki.
I remember the similar issue from my other system - laptop with Lubuntu 16.04. There the flashing and increasing copies of the Owncloud client icon in systray appeared.
Now in the Elementary OS the cursor start a flashing in whole system and in all apps and the wingpanel is consuming most of CPU when the synchronization is in progress. I think that the issues in Lubuntu and Elementary OS are very similar.

[ckamm]

@TKLCZ @lchigami Try setting the OWNCLOUD_MINIMAL_TRAY_MENU environment variable before starting the client. If the problem goes away, it's indeed a tray menu issue.

Pull request #5179 brings a bunch of workarounds for tray issues. In particular it limits one workaround - which might trigger this misbehavior you're seeing - to Qt 5.5.0. If you can compile and test with this patch applied, that would be extraordinarily helpful.

[ckamm]

The pull request was now merged. So if you test a master (to be 2.3.0) build, things may have improved.

[reykjalin]

I'm having the same issue and since this bug is tagged with "Needs info" I decided to add a link to this thread I found, since it seems to contain some relevant information: http://elementaryos.stackexchange.com/a/8257

[lchigami]

@ckamm Setting the OWNCLOUD_MINIMAL_TRAY_MENU to 1, and Wingpanel is still crashing...
Using the latest 2.2.4 stable client version

[guruz]

@lchigami The 2.2.4 does not have this yet.
The 2.3 nightlies is what you should try for this https://software.opensuse.org/download/package?project=isv:ownCloud:community:nightly&package=owncloud-client

(Note that the builds for all the distros might not have run through yet..)

[lchigami]

@guruz Installed the 2.3.0 nightlies, and getting the error:

segfault at 28 ip 00000000004cf404 sp 00007ffc1dd841a8 error 4 in owncloud[400000+211000]

[guruz]

@lchigami Start the client in gdb:
gdb owncloud

Then
r --logfile -

then on crash:
thread apply all bt

[lchigami]

@guruz
Sending the output of the commands below:

gdb owncloud: https://gist.github.com/lchigami/f033fe242280a27dd2ab60af8d569964
r --logfile -: https://gist.github.com/lchigami/60eaaa65e4ba2c1e0c7b619d1b3f06ea
thread apply all bt: https://gist.github.com/lchigami/6a1a19e4b5c245edd259247c2745eb1f

[ckamm]

@lchigami Thanks for the backtrace, it's a crash in contextMenuVisible (called from the ownCloudGui constructor) I'll look at it!

[ckamm]

67ecca4 calls contextMenuVisible before the context menu is set up and that only works on mac, will fix.

[ckamm]

@lchigami The bug is unrelated and fixed in 91b6b88 - could you try a new nightly once it becomes available?

[lchigami]

@ckamm Sure! Once available, i will test it and report here.

[lchigami]

@ckamm Testing the 2.3.0nightly2016109 (build 1951) version, and so far so good. Looking very stable, no more crashes.

[lchigami]

@ckamm @guruz Testing the nightly builds, and so far no crashes...
Closing this issue!
Thanks for the support!

[ckamm]

@lchigami Thanks for testing!

[peteruithoven]

Is there any estimation on when this will be released? I didn't find it in the changelog yet. When 2.3.0 is released?

[peteruithoven]

Nightly seems to work great on Elementary OS Loki's Wingpanel.