system-monitor extension is flooding syslog

[Felix Kuehling]

/var/log/syslog is flooded with messages of this kind (once per second), making the log grow at a rate of > 4KB/s or about 350MB per day:

Aug 11 15:10:49 Dobby gnome-shell[1725]: message repeated 3 times: [ Object Gio.Settings (0x559de3638920), has been already deallocated - impossible to access to it. This might be caused by the fact that the object has been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs]
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: == Stack trace for context 0x559de199f330 ==
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #0 0x559de1ddc0a0 i /<email address hidden>/extension.js:1936 (0x7f9a76b2e120 @ 39)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #1 0x7fff0831f820 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f9aec0b5de0 @ 71)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #2 0x7fff08320010 b /<email address hidden>/extension.js:928 (0x7f9a76b27340 @ 70)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #3 0x7fff08320e40 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f9aec0b5de0 @ 71)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #4 0x559de1ddbfe0 i self-hosted:913 (0x7f9aec0f12b8 @ 346)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: == Stack trace for context 0x559de199f330 ==
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #0 0x559de1ddc0a0 i /<email address hidden>/extension.js:1951 (0x7f9a76b2e120 @ 235)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #1 0x7fff0831f820 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f9aec0b5de0 @ 71)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #2 0x7fff08320010 b /<email address hidden>/extension.js:928 (0x7f9a76b27340 @ 70)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #3 0x7fff08320e40 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f9aec0b5de0 @ 71)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #4 0x559de1ddbfe0 i self-hosted:913 (0x7f9aec0f12b8 @ 346)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: == Stack trace for context 0x559de199f330 ==
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #0 0x559de1ddc0a0 i /<email address hidden>/extension.js:1957 (0x7f9a76b2e230 @ 83)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #1 0x7fff0831f820 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f9aec0b5de0 @ 71)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #2 0x7fff08320010 b /<email address hidden>/extension.js:929 (0x7f9a76b27340 @ 85)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #3 0x7fff08320e40 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f9aec0b5de0 @ 71)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #4 0x559de1ddbfe0 i self-hosted:913 (0x7f9aec0f12b8 @ 346)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: == Stack trace for context 0x559de199f330 ==
Aug 11 15:10:49 Dobby gnome-shell[1725]: Object Gio.Settings (0x559de3638920), has been already deallocated - impossible to access to it. This might be caused by the fact that the object has been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #0 0x559de1ddc0a0 i /<email address hidden>/extension.js:943 (0x7f9a76b27450 @ 23)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #1 0x7fff0831f820 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f9aec0b5de0 @ 71)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #2 0x7fff08320010 b /<email address hidden>/extension.js:931 (0x7f9a76b27340 @ 121)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #3 0x7fff08320e40 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f9aec0b5de0 @ 71)
Aug 11 15:10:49 Dobby org.gnome.Shell.desktop[1725]: #4 0x559de1ddbfe0 i self-hosted:913 (0x7f9aec0f12b8 @ 346)
Aug 11 15:10:49 Dobby gnome-shell[1725]: Object Gio.Settings (0x559de3638920), has been already deallocated - impossible to access to it. This might be caused by the fact that the object has been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-shell-extension-system-monitor 35-1
Uname: Linux 4.18.0-rc7+ x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Aug 11 15:03:06 2018
InstallationDate: Installed on 2018-07-23 (19 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
SourcePackage: gnome-shell-extension-system-monitor
UpgradeStatus: No upgrade log present (probably fresh install)

[Felix Kuehling (fxkuehl)]

Some related info I found online:

Github bug report: https://github.com/paradoxxxzero/gnome-shell-system-monitor-applet/issues/447
Patch linked by the above: https://github.com/paradoxxxzero/gnome-shell-system-monitor-applet/commit/2efb9d1248e719474eab91d92d0905f5d3e1d25c

[John (jgwaclawsky)]

I got the following repeating pattern which occupies most of the syslog (probably 99%) Found syslog = 11.6 GB and syslog.1 =61.1 GB. It loooks like every 5 seconds i get a grouping of 4 messages.

Nov 9 10:58:02 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/run/user/124/gvfs' failed: Permission denied
Nov 9 10:58:02 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/root/.cache/doc' failed: Permission denied
Nov 9 10:58:02 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/root/.cache/gvfs' failed: Permission denied
Nov 9 10:58:02 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/run/user/1000/doc' failed: Operation not permitted
Nov 9 10:58:07 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/run/user/124/gvfs' failed: Permission denied
Nov 9 10:58:07 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/root/.cache/doc' failed: Permission denied
Nov 9 10:58:07 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/root/.cache/gvfs' failed: Permission denied
Nov 9 10:58:07 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/run/user/1000/doc' failed: Operation not permitted
Nov 9 10:58:12 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/run/user/124/gvfs' failed: Permission denied
Nov 9 10:58:12 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/root/.cache/doc' failed: Permission denied
Nov 9 10:58:12 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/root/.cache/gvfs' failed: Permission denied
Nov 9 10:58:12 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/run/user/1000/doc' failed: Operation not permitted
Nov 9 10:58:17 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/run/user/124/gvfs' failed: Permission denied
Nov 9 10:58:17 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/root/.cache/doc' failed: Permission denied
Nov 9 10:58:17 jgw-XPS-8930 gnome-system-monitor.desktop[5069]: glibtop(c=5069): [WARNING] statvfs '/root/.cache/gvfs' failed: Permission denied

I have the system monitor running on one of my dual screens. I turned system monitor off 10 minutes ago and the repeating grouping of 4 message stopped. I just turned system monitor back on and the messages didn't reoccur until i selected the "File System" panel and then the messages started to appear again.

BTW, System Monitor Preferences for File Systems: the update interval is 5 seconds. I changed interval to 10 seconds and now log messages are every 10 seconds.
So why is "permission denied" to system monitor? This looks like this bug!

[John (jgwaclawsky)]

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