No, this isn't an application (Chrome or FireFox) memory leak, it is the Xorg process which is currently stuck at 1.49GB of memory used.
[~]> top -n1 | grep Xorg 1114 root 20 0 2005m 1.5g 17m S 6 38.6 568:15.14 Xorg This only started happening after upgrading to 11.04. I've wiped / reinstalled back to 10.10, and I do not see this issue. This is using Ubuntu classic, with the following packages installed: [~]> dpkg -l | grep -i nvidia ii nvidia-common 0.2.30 Find obsolete NVIDIA drivers ii nvidia-current 270.41.06-0ubuntu1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-settings 270.29-0ubuntu1 Tool of configuring the NVIDIA graphics driver [~]> dpkg -l | grep -i compiz ii compiz 1:0.9.4+bzr20110415-0ubuntu2 OpenGL window and compositing manager ii compiz-core 1:0.9.4+bzr20110415-0ubuntu2 OpenGL window and compositing manager ii compiz-fusion-plugins-extra 0.9.4-0ubuntu3 transitional dummy package. ii compiz-fusion-plugins-main 0.9.4+bzr20110406-0ubuntu2 transitional dummy package. ii compiz-gnome 1:0.9.4+bzr20110415-0ubuntu2 OpenGL window and compositing manager - GNOME window decorator ii compiz-plugins 1:0.9.4+bzr20110415-0ubuntu2 OpenGL window and compositing manager - plugins ii compiz-plugins-extra 0.9.4-0ubuntu3 Collection of extra plugins from OpenCompositing for Compiz ii compiz-plugins-main 0.9.4+bzr20110406-0ubuntu2 Compiz Fusion plugins - main collection ii compizconfig-backend-gconf 0.9.2.4-0ubuntu1 Compiz Fusion configuration system - gconf backend ii compizconfig-settings-manager 0.9.4-0ubuntu2 Compiz configuration settings manager ii emerald 0.7.2-0ubuntu6 Decorator for compiz-fusion ii fusion-icon 0.1.0-2ubuntu1 tray icon to launch and manage Compiz Fusion ii libcompizconfig0 0.9.4-0ubuntu2 Settings library for plugins - OpenCompositing Project ii libdecoration0 1:0.9.4+bzr20110415-0ubuntu2 Compiz window decoration library ii libemeraldengine0 0.7.2-0ubuntu6 Decoration engines for compiz-fusion ii python-compizconfig 0.9.4-0ubuntu1 Compizconfig bindings for python ** Changed in: xorg (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/763370 Title: xorg memory leak _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp