[Bug 1635577] Re: memory leak in unity-panel-service

[Launchpad Bug Tracker]

This bug was fixed in the package owncloud-client - 2.2.2+dfsg-
1ubuntu0.2

---
owncloud-client (2.2.2+dfsg-1ubuntu0.2) yakkety; urgency=medium

  * Backport upstream change to update the tray menu only on demand
(update_menu_only_on_demand.patch). This should fix the remaining
issues described in LP: #1635577.

 -- Dmitry Shachnev   Mon, 19 Dec 2016 18:37:49
+0300

** Changed in: owncloud-client (Ubuntu Yakkety)
   Status: Fix Committed => Fix Released

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  memory leak in unity-panel-service

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

Marking as verified based on comments 33 and 39.

** Tags removed: verification-needed
** Tags added: verification-done

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[Bug 1635577] Re: memory leak in unity-panel-service

[Gilles Gagniard]

So far so good ! No reoccurrence for me since the latest update in
yakkety-proposed.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

Gilles, can you please check if your issue (menu becoming empty after
some hours) is gone in the new version?

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

@Morsok: This is off-topic here. The issue is fixed in upstream Git, but
I do not know when it is coming to their repository.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Morsok]

Hmmm ? But if both are officials, which one should a user choose ?

I guess upstream is the owncloud repository ? Do you have any
information about the fix there ?

Thank you for taking the time I appreciate it !

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

@Morsok: the owncloud repository is official from owncloud point of
view. The Ubuntu repository is official from Ubuntu point of view — I am
representing this one here :)

If you are already using 2.2.4 from owncloud repository, I will suggest
you to remain on it and not downgrade, and wait for the fix from
upstream instead (or use appmenu-qt5 as a workaround).

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[Bug 1635577] Re: memory leak in unity-panel-service

[Morsok]

Hello,

I'd like to test that also since I have to reboot my laptop every day
due to the leak.

Can you link me to some documentation in order to switch from owncloud
repos to the ubunto one ?

Also my owncloud client is 2.2.4 and the one you just uploaded is 2.2.2,
is this normal ? Why the difference ?

What repository should be considered official ? The ubuntu one or the
developers one ? Sorry if i'm asking dumb questions, this is still new
to me.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Andreas Büsching]

The client is running for several hours now and has not increased its
memory consumption a bit. The menu is still working.

Nice work!

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[Bug 1635577] Re: memory leak in unity-panel-service

[Mathew Hodson]

** Changed in: owncloud-client (Ubuntu Yakkety)
   Importance: Undecided => High

** Changed in: unity (Ubuntu Yakkety)
   Importance: Undecided => High

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

Gilles, thanks for the log, it is very helpful!

Looks like the the tray menu is still rebuilt every 30 seconds, and Qt
runs out of items IDs.

Backporting this upstream pull request should fix it:
https://github.com/owncloud/client/pull/5072. I will do the new
Zesty/Yakkety uploads tomorrow.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Gilles Gagniard]

Here it is.

** Attachment added: "log.txt.gz"
   
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1635577/+attachment/4791748/+files/log.txt.gz

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

Hi Gilles, thanks for testing! Can you please do the following:

1) Wait until the menu becomes empty again;
2) Start “dbus-monitor 2>log.txt” in a terminal;
3) Wait a couple of minutes;
4) Kill dbus-monitor and attach log.txt to this bug (optionally gzip it if it’s 
too large).

That would help a lot, thanks in advance!

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[Bug 1635577] Re: memory leak in unity-panel-service

[Gilles Gagniard]

With owncloud-client from yakkety-proposed and appmenu-qt5 uninstalled :

$ dpkg -l | grep owncloud-client
ii  owncloud-client 
2.2.2+dfsg-1ubuntu0.1   amd64folder synchronization 
with an ownCloud server - GUI
ii  owncloud-client-data
2.2.2+dfsg-1ubuntu0.1   all  ownCloudSync folder 
synchronization - shared data
ii  owncloud-client-l10n
2.2.2+dfsg-1ubuntu0.1   all  ownCloudSync folder 
synchronization - localization

I confirm the memory leak in unity-panel-service is gone.

*However*, it seems that there is now a bug with the indicator menu ...
after a bit less than 24h running it, the menu is always empty (see
attached screenshot). But owncloud-client is still synchronizing in the
background.

** Attachment added: "screenshot_empty_menu.png"
   
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1635577/+attachment/4787498/+files/screenshot_empty_menu.png

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

I have tested indicator-applet on gnome-panel, it has the same issue.
There the GTK Inspector works, and shows dead menu items as can be seen
in the screenshot: http://people.ubuntu.com/~mitya57/inspector.png. I
was also able to write a two-line fix for it (see the linked branch).

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[Bug 1635577] Re: memory leak in unity-panel-service

[Launchpad Bug Tracker]

** Branch linked: lp:~mitya57/indicator-applet/remove-old-menuitems

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

Hi Marco, thanks for looking at this!

Attached is a smaller test case. Compile it with:

g++ -fPIC -I /usr/include/x86_64-linux-gnu/qt5 -lQt5Core -lQt5Gui
-lQt5Widgets ./test.cpp

To me, the chain of objects looks like this:

unity-panel-service top-level menubar (created in panel-service.c:2540)
-> menu item for every indicator entry, including dead ones
   (created in panel-service.c:2566, added in panel-service.c:2589)
-> item submenu (created in indicator-application.c:555, added in 
panel-service.c:2590)
-> dbusmenu client (created in libdbusmenu-gtk/menu.c:402)
-> finally, each dbusmenu client maintains its own menu structure
   (and all clients are alive and massively send D-Bus requests)

The upstream commit is
https://github.com/owncloud/client/commit/98efb075357fa64f — it
contained other changes, so I did not cherry-pick all of it. The first
item in the commit message is relevant to us.

A question from me: is it possible to inspect unity-panel-service with
GTK+ Inspector somehow? I tried running it with GTK_DEBUG=interactive,
but the only object it shows to me is GtkSettings.

** Attachment added: "test.cpp"
   
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1635577/+attachment/4785986/+files/test.cpp

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[Bug 1635577] Re: memory leak in unity-panel-service

[Brian Murray]

Hello Andreas, or anyone else affected,

Accepted owncloud-client into yakkety-proposed. The package will build
now and be available at https://launchpad.net/ubuntu/+source/owncloud-
client/2.2.2+dfsg-1ubuntu0.1 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: owncloud-client (Ubuntu Yakkety)
   Status: Confirmed => Fix Committed

** Tags added: verification-needed

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[Bug 1635577] Re: memory leak in unity-panel-service

[Treviño]

** Changed in: unity (Ubuntu)
 Assignee: (unassigned) => Marco Trevisan (Treviño) (3v1n0)

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[Bug 1635577] Re: memory leak in unity-panel-service

[Treviño]

mitya57:

Thanks, we call gtk_widget_destroy on de-activation, but it was a little
harder to see when that kind of behavior happened

However, are you using a single-entry menu item with no menus? As we do it only 
in that case...
Do you have a simpler test case to reproduce this without the owncloud client?

I'll try it, though.

Thanks for the debugging hints.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Treviño]

Ah, also what's the upstream commit that fixed this?

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

** Description changed:

- I have seen similiar bug reports,but these are really old and are not
- related to version 16.10. This is way I'm opening a new one.
+ # Impact
+ The bad behavior of owncloud-client, combined with a design issue in Qt 5, 
and with unity-panel-service not cleaning up after old indicators, cause huge 
memory consumption of unity-panel-service. The consumption grows in arithmetic 
progression and can quickly reach several GBs.
+ 
+ For technical explanation of why this happens, see my comments #17 and
+ #19.
+ 
+ I could not figure out how to explore the Unity panel contents in the
+ GTK+ inspector. If that is possible, then the big row of the dead hidden
+ indicators should be shown there.
+ 
+ # Proposed Fix
+ Fixing either unity-panel-service or owncloud-client will both work. In 
owncloud-client the fix is just one line, so it is easier. It disables the 
upstream workaround which was only needed for Qt 5.5. Upstream has also limited 
the workaround to Qt 5.5.0 only in newer code, so this patch will no longer 
needed with the next major owncloud-client release.
+ 
+ The same patch has been applied in Zesty version 2.2.4+dfsg-2ubuntu1.
+ 
+ # Regression Potential
+ Both bugs that the workaround took care of are fixed in Qt 5.6:
+ - https://bugreports.qt.io/browse/QTBUG-47863 — fixed in 5.5.1, 5.6.1
+ - https://bugreports.qt.io/browse/QTBUG-48068 — fixed in 5.6.0
+ 
+ So this should not cause any regressions.
+ 
+ # Test Case
+ Just start owncloud-client under Unity (and make sure it shows the tray 
icon). Logging in is not necessary, though that increases the memory 
consumption rate (as there are more menu items).
+ 
+ =
+ I have seen similiar bug reports,but these are really old and are not related 
to version 16.10. This is way I'm opening a new one.
  
  Currently the unity-panel-service process uses about 11GB of RAM which
  is definitely too much
  
  top - 11:33:45 up 7 days,  4:09,  2 users,  load average: 0,74, 1,08, 1,48
  Tasks: 332 gesamt,   1 laufend, 331 schlafend,   0 gestoppt,   0 Zombie
  %CPU(s):  3,7 be,  1,6 sy,  0,1 ni, 92,3 un,  2,2 wa,  0,0 hi,  0,0 si,  0,0 
st
  KiB Spch : 16309660 gesamt,   211552 frei, 14872856 belegt,  1225252 
Puff/Cache
- KiB Swap:  8266748 gesamt,  6138576 frei,  2128172 belegt.   609444 verfü 
Spch 
+ KiB Swap:  8266748 gesamt,  6138576 frei,  2128172 belegt.   609444 verfü Spch
  
-   PID USER  PR  NIVIRTRESSHR S  %CPU %MEM ZEIT+ BEFEHL


 
-  4339 abuesch+  20   0 11,590g 0,010t  12892 S   0,0 69,0 340:54.64 
unity-panel-ser
+   PID USER  PR  NIVIRTRESSHR S  %CPU %MEM ZEIT+ BEFEHL
+  4339 abuesch+  20   0 11,590g 0,010t  12892 S   0,0 69,0 340:54.64 
unity-panel-ser
  
  Additionally to all standard indicators I have used the owncloud and
  cpufreq indicator. Don't know if this is related to it.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: unity 7.5.0+16.10.20160906.1-0ubuntu1
  ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0
  Uname: Linux 4.8.0-22-generic x86_64
  .tmp.unity_support_test.0:
-  
+ 
  ApportVersion: 2.20.3-0ubuntu8
  Architecture: amd64
  BootLog: /dev/sda6: clean, 1281257/10911744 files, 22096310/43622400 blocks
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Fri Oct 21 11:27:57 2016
  DistUpgraded: Fresh install
  DistroCodename: yakkety
  DistroVariant: ubuntu
  DkmsStatus:
-  virtualbox, 5.1.6, 4.8.0-22-generic, x86_64: installed
-  virtualbox, 5.1.6, 4.8.0-26-generic, x86_64: installed
+  virtualbox, 5.1.6, 4.8.0-22-generic, x86_64: installed
+  virtualbox, 5.1.6, 4.8.0-26-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExecutablePath: /usr/bin/compiz
  GraphicsCard:
-  Intel Corporation 2nd Generation Core Processor Family Integrated Graphics 
Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
-Subsystem: Dell 2nd Generation Core Processor Family Integrated Graphics 
Controller [1028:04a9]
+  Intel Corporation 2nd Generation Core Processor Family Integrated Graphics 
Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
+    Subsystem: Dell 2nd Generation Core Processor Family Integrated Graphics 
Controller [1028:04a9]
  InstallationDate: Installed on 2013-11-10 (1075 days ago)
  InstallationMedia: elementary OS 0.2 "Luna" - Stable amd64 (20130810)
  MachineType: Dell Inc. Latitude E6220
  ProcEnviron:
-  LANG=de_DE.UTF-8
-  LANGUAGE=de_DE
-  PATH=(custom, user)
-  SHELL=/usr/bin/zsh
-  XDG_RUNTIME_DIR=
+  LANG=de_DE.UTF-8
+  LANGUAGE=de_DE
+  PATH=(custom, 

[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

For Zesty fixed in owncloud-client 2.2.4+dfsg-2ubuntu1.

** Package changed: owncloud (Ubuntu) => owncloud-client (Ubuntu)

** Changed in: owncloud-client (Ubuntu)
   Status: In Progress => Fix Released

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[Bug 1635577] Re: memory leak in unity-panel-service

[Launchpad Bug Tracker]

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

** Changed in: owncloud (Ubuntu Yakkety)
   Status: New => Confirmed

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[Bug 1635577] Re: memory leak in unity-panel-service

[Launchpad Bug Tracker]

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

** Changed in: unity (Ubuntu Yakkety)
   Status: New => Confirmed

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

** Package changed: libdbusmenu (Ubuntu) => unity (Ubuntu)

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  memory leak in unity-panel-service

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

OK, after all I think it is an issue in unity-panel-service.

ownCloud does strange things: it unregisters and re-registers its tray
icon periodically. This results in creating new indicator items every
time. The new items are added to the menu by gtk_menu_shell_append call
in panel_service_show_entry_common function. However, then the old
indicator items get removed, the menu items are not removed (there is no
corresponding gtk_container_remove call), they are just hidden by
unsetting their entry2geometry hashes.

I hope Unity developers will be able to look at this more closely, and I
will backport the upstream fix for ownCloud for the time being.

** Also affects: owncloud (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: owncloud (Ubuntu)
   Importance: Undecided => High

** Changed in: owncloud (Ubuntu)
 Assignee: (unassigned) => Dmitry Shachnev (mitya57)

** Changed in: owncloud (Ubuntu)
   Status: New => In Progress

** Changed in: libdbusmenu (Ubuntu)
 Assignee: Unity Team (unity-team) => (unassigned)

** Also affects: libdbusmenu (Ubuntu Yakkety)
   Importance: Undecided
   Status: New

** Also affects: owncloud (Ubuntu Yakkety)
   Importance: Undecided
   Status: New

** Changed in: owncloud (Ubuntu Yakkety)
 Assignee: (unassigned) => Dmitry Shachnev (mitya57)

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Title:
  memory leak in unity-panel-service

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[Bug 1635577] Re: memory leak in unity-panel-service

[James]

I have this happening to me, I have seen up to 12GB being consumed by
the Unity-Panel-Service. I did an upgrade from 16.04 to 16.10

I have Owncloud and Franz running as well.

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Title:
  memory leak in unity-panel-service

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

According to massif, the memory allocations come from the following
path:

0x1FF8C3AA: new_item_normal (client.c:1095)
0x201A8798: menuitem_get_properties_new_cb (client.c:1578)
0x201A6C67: get_properties_callback (client.c:698)
0x06CB54E1: g_task_return_now (gtask.c:1121)
[...]

and the same, but new_item_separator instead of new_item_normal.

This is the libdbusmenu-glib / libdbusmenu-gtk code, so reassigning
accordingly.

There is also going a very intensive D-Bus exchange between the
indicator and the owncloud process, it did not look sane to me, so it
may be another bug somewhere.

** Package changed: unity (Ubuntu) => libdbusmenu (Ubuntu)

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  memory leak in unity-panel-service

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[Bug 1635577] Re: memory leak in unity-panel-service

[vojtabiberle]

I have same problem.

Two apps was responsible for higher RAM and MEM consumption:
 - ownCloud (https://github.com/owncloud/client)
 - Messenger for Desktop (https://github.com/Aluxian/Facebook-Messenger-Desktop)

Guys from ownCloud client found workaround in deny so many updates of
icon, but I was not fully helpful
(https://github.com/owncloud/client/issues/4985)

Workaround with appmenu-qt5 was helpful with RAM and MEM consumption but some 
apps have "no icon" icon and I thing, all of them are QT5 based.
 - RescueTime
 - ownCloud
 - Mega.co.nz
 - Albert

For me is main suspicious QT5 build-in plugin for icons.


** Bug watch added: github.com/owncloud/client/issues #4985
   https://github.com/owncloud/client/issues/4985

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[Bug 1635577] Re: memory leak in unity-panel-service

[Krzysztof Burliński]

Ok, the workaround helped me, at least for the RAM consumption issue.

Also, I noticed something like that, happening also since update to
16.10 (but I might be mistaken here)

All or some icons change to red signs:

http://i.imgur.com/BCVg6m8.png

not sure if it is connected with ram issue, but I might be helpful

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[Bug 1635577] Re: memory leak in unity-panel-service

[Dmitry Shachnev]

Assigning to myself, though I do not know yet whether this is a bug in
Unity or Qt. I will try to debug it later this week.

** Changed in: unity (Ubuntu)
   Status: Confirmed => Triaged

** Changed in: unity (Ubuntu)
   Importance: Undecided => High

** Changed in: unity (Ubuntu)
 Assignee: (unassigned) => Dmitry Shachnev (mitya57)

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[Bug 1635577] Re: memory leak in unity-panel-service

[Krzysztof Burliński]

Happens to me too, on 3 installations. I suspect owncloud or slack, but
however this apps misbehave, it shouldn't get 2GB of memory on unity
panel service.

Thanks for the workaround, i will give it a try

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[Bug 1635577] Re: memory leak in unity-panel-service

[Андрей Калинин]

Installing appmenu-qt5 resolves the problem with memory leak for me.
Confirm: solution above works.

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  memory leak in unity-panel-service

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[Bug 1635577] Re: memory leak in unity-panel-service

[Gilles Gagniard]

I think I've got a working workaround :

- apt install appmenu-qt5
- in your ~/.profile, add 'export QT_QPA_PLATFORMTHEME=appmenu-qt5'
- reload your session

No more memory leak for me, but I've only applied that a couple of hours
ago, so I'm not 100% sure yet.

If this is confirmed, it means the culprit is the new native Qt5 dbus
appmenu/indicator support in yakkety, while in xenial and before an
external plugin called 'appmenu-qt5' was used for the integration of Qt5
menus in Unity.

More information about this change here :
https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1612767

Unfortunately it seems this old plugin is going the way of the dodo in
zesty : https://bugs.launchpad.net/ubuntu/+source/appmenu-
qt5/+bug/1634941

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  memory leak in unity-panel-service

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[Bug 1635577] Re: memory leak in unity-panel-service

[Jonas Schwabe]

Even if it was OwnCloud related, the memory usage should decrease after 
quitting OwnCloud...
Well it does not ;)

I had nearly 4gb yesterday and I'm back up toi 1gb right now.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Sebastian Heiden]

Same, also running the owncloud sync client. Could be an bug in the
owncloud package too.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Gianluca Della Vedova]

I am also running the owncloud sync client.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Robert Hutton]

I am also running the owncloud sync client, version 2.2.4.  unity-panel-
service grows to over 4GB RAM in 4 hours.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Andreas Büsching]

It looks like the memory leak in the process unity-panel-service has
something to do with the ownclowd process. When I start the owncloud
program it shows its indicator. About 2 hours later the process has
grown from 80 MB to 130 MB.

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[Bug 1635577] Re: memory leak in unity-panel-service

[Andreas Büsching]

Hi Sebastian,

Can you please click the 'affects me too' button to increase the chance
for this bug to be investigated? thx in advance

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[Bug 1635577] Re: memory leak in unity-panel-service

[Sebastian Heiden]

I'm having this issue too, the panel often freezes and gets unreponsive,
even if the memory usage isn't that high. But after a while it fills up
the RAM.

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  memory leak in unity-panel-service

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[Bug 1635577] Re: memory leak in unity-panel-service

[Launchpad Bug Tracker]

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

** Changed in: unity (Ubuntu)
   Status: New => Confirmed

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[Bug 1635577] Re: memory leak in unity-panel-service

[Andreas Büsching]

After about 2 days of usage the memory consumption is back to 9GB
(started with around 60MB)

Additional the indicator menu do not work, meaning they are trying to
draw their menu windows, but after a time they disappear

The CPU usage is up to about one full CPU (of 4). According to strace
there is not that much happening (including sub-processes).

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