Bug#881151: gnome-shell consume all your buffer free memory and then Linux kill X
Davide Prina
davide.prina at gmail.com
Wed Nov 29 09:09:54 UTC 2017
I have found something new.
If I record a session: Ctrl-Alt-Shift-r
I have gnome-shell process to use a lot of memory and If I have
already opened other applications I can have a "crash" of all X and
then GDM appear for new login
If I record a session and do simple things as switch to open
application, open top bar, execute xterm command I see that memory
used by gnome-shell increase in few second
If I execute the following command:
$ ps -eo pmem,pcpu,rss,vsize,args --sort=-%mem | head -n 2
I can see:
%MEM %CPU RSS VSZ COMMAND
56.3 29.3 2248508 5375496 /usr/bin/gnome-shell
but the session record stop (probably crash? ... but I don't see any
error on syslog)
after a while I get result as following
%MEM %CPU RSS VSZ COMMAND
21.8 30.8 872260 3998460 /usr/bin/gnome-shell
%MEM %CPU RSS VSZ COMMAND
21.8 31.1 872524 3998460 /usr/bin/gnome-shell
%MEM %CPU RSS VSZ COMMAND
22.6 31.2 903056 4029180 /usr/bin/gnome-shell
%MEM %CPU RSS VSZ COMMAND
22.9 31.2 918232 4044540 /usr/bin/gnome-shell
%MEM %CPU RSS VSZ COMMAND
17.6 31.3 705876 3861944 /usr/bin/gnome-shell
%MEM %CPU RSS VSZ COMMAND
18.0 31.4 721476 3872184 /usr/bin/gnome-shell
%MEM %CPU RSS VSZ COMMAND
18.4 31.4 736780 3887544 /usr/bin/gnome-shell
%MEM %CPU RSS VSZ COMMAND
18.9 31.5 757228 3908024 /usr/bin/gnome-shell
note that I have executed only the command and nothing else
It seem like no more used memory is not immediately available and it
will released in future... so if an application need some memory it is
used a new one. Probably the application see the free memory + unused
allocated memory as the memory he can use, but in reality the unused
allocated memory is not available. If this is correct it can explain
why the swap is nearly not used and the result can be a X "crash".
Ciao
Davide
-- System Information:
Debian Release: buster/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.13.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8),
LANGUAGE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages gnome-shell depends on:
ii caribou 0.4.21-2
ii dconf-gsettings-backend [gsettings-backend] 0.26.1-1
ii evolution-data-server 3.26.2.1-1
ii gir1.2-accountsservice-1.0 0.6.45-1
ii gir1.2-atspi-2.0 2.26.0-2
ii gir1.2-caribou-1.0 0.4.21-2
ii gir1.2-freedesktop 1.54.1-3
ii gir1.2-gcr-3 3.20.0-5.1
ii gir1.2-gdesktopenums-3.0 3.24.1-1
ii gir1.2-gdm-1.0 3.26.2.1-2
ii gir1.2-geoclue-2.0 2.4.7-1
ii gir1.2-glib-2.0 1.54.1-3
ii gir1.2-gnomebluetooth-1.0 3.26.1-1
ii gir1.2-gnomedesktop-3.0 3.26.2-1
ii gir1.2-gtk-3.0 3.22.24-3
ii gir1.2-gweather-3.0 3.26.0-1
ii gir1.2-ibus-1.0 1.5.14-3
ii gir1.2-mutter-1 3.26.2-1
ii gir1.2-networkmanager-1.0 1.10.0-1
ii gir1.2-nmgtk-1.0 1.8.6-1
ii gir1.2-pango-1.0 1.40.12-1
ii gir1.2-polkit-1.0 0.105-18
ii gir1.2-rsvg-2.0 2.40.18-2
ii gir1.2-soup-2.4 2.60.2-1
ii gir1.2-upowerglib-1.0 0.99.6-1
ii gjs 1.50.2-1
ii gnome-backgrounds 3.26.2-1
ii gnome-settings-daemon 3.26.2-1
ii gnome-shell-common 3.26.2-1
ii gsettings-desktop-schemas 3.24.1-1
ii libasound2 1.1.3-5
ii libatk-bridge2.0-0 2.26.0-1
ii libatk1.0-0 2.26.0-2
ii libc6 2.25-2
ii libcairo2 1.15.8-2
ii libcanberra-gtk3-0 0.30-4
ii libcanberra0 0.30-4
ii libcroco3 0.6.12-1
ii libdbus-glib-1-2 0.108-3
ii libecal-1.2-19 3.26.2.1-1
ii libedataserver-1.2-22 3.26.2.1-1
ii libgcr-base-3-1 3.20.0-5.1
ii libgdk-pixbuf2.0-0 2.36.11-1
ii libgirepository-1.0-1 1.54.1-3
ii libgjs0g [libgjs0-libmozjs-52-0] 1.50.2-1
ii libglib2.0-0 2.54.1-1
ii libglib2.0-bin 2.54.1-1
ii libgstreamer1.0-0 1.12.3-1
ii libgtk-3-0 3.22.24-3
ii libical2 2.0.0-1
ii libjson-glib-1.0-0 1.4.2-2
ii libmutter-1-0 3.26.2-1
ii libnm-glib4 1.10.0-1
ii libnm-util2 1.10.0-1
ii libpango-1.0-0 1.40.12-1
ii libpangocairo-1.0-0 1.40.12-1
ii libpolkit-agent-1-0 0.105-18
ii libpolkit-gobject-1-0 0.105-18
ii libpulse-mainloop-glib0 11.1-1
ii libpulse0 11.1-1
ii libsecret-1-0 0.18.5-4
ii libstartup-notification0 0.12-4+b2
ii libsystemd0 235-3
ii libx11-6 2:1.6.4-3
ii libxfixes3 1:5.0.3-1
ii mutter 3.26.2-1
ii python3 3.6.3-2
Versions of packages gnome-shell recommends:
ii chrome-gnome-shell 9-1
ii gdm3 3.26.2.1-2
ii gkbd-capplet 3.26.0-2
ii gnome-control-center 1:3.26.2-1
ii gnome-user-docs 3.26.2-1
ii iio-sensor-proxy 2.2-1
ii switcheroo-control 1.1-1
ii unzip 6.0-21
Versions of packages gnome-shell suggests:
ii gir1.2-telepathyglib-0.12 0.24.1-1.1
ii gir1.2-telepathylogger-0.2 0.8.2-2
-- no debconf information
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