Comment 5 for bug 1198180

Update: I've found another memory-hog, the upstart-udev-bridge. Looks like stopping it (sudo stop upstart-udev-bridge) also stops memory leaking in the upstart (init) process.

$ pmap -x 368
368: upstart-udev-bridge --daemon
Address Kbytes RSS Dirty Mode Mapping
---------------- ------ ------ ------
total kB 0 0 0
coding@wbec170:~$ sudo pmap -x 368
368: upstart-udev-bridge --daemon
Address Kbytes RSS Dirty Mode Mapping
00007f66c06af000 0 6988 6988 rw--- [ anon ]
00007f66c82b6000 0 260 260 rw--- [ anon ]
00007f66c9ede000 0 4 0 r-x-- librt-2.15.so
00007f66c9ee5000 0 0 0 ----- librt-2.15.so
00007f66ca0e4000 0 4 4 r---- librt-2.15.so
00007f66ca0e5000 0 0 0 rw--- librt-2.15.so
00007f66ca0e6000 0 228 0 r-x-- libc-2.15.so
00007f66ca29b000 0 0 0 ----- libc-2.15.so
00007f66ca49a000 0 8 8 r---- libc-2.15.so
00007f66ca49e000 0 8 8 rw--- libc-2.15.so
00007f66ca4a0000 0 12 12 rw--- [ anon ]
00007f66ca4a5000 0 4 0 r-x-- libudev.so.0.13.0
00007f66ca4b1000 0 0 0 ----- libudev.so.0.13.0
00007f66ca6b0000 0 4 4 r---- libudev.so.0.13.0
00007f66ca6b1000 0 0 0 rw--- libudev.so.0.13.0
00007f66ca6b2000 0 12 0 r-x-- libpthread-2.15.so
00007f66ca6ca000 0 0 0 ----- libpthread-2.15.so
00007f66ca8c9000 0 4 4 r---- libpthread-2.15.so
00007f66ca8ca000 0 0 0 rw--- libpthread-2.15.so
00007f66ca8cb000 0 4 4 rw--- [ anon ]
00007f66ca8cf000 0 144 0 r-x-- libdbus-1.so.3.5.8
00007f66ca911000 0 0 0 ----- libdbus-1.so.3.5.8
00007f66cab11000 0 4 4 r---- libdbus-1.so.3.5.8
00007f66cab12000 0 4 4 rw--- libdbus-1.so.3.5.8
00007f66cab13000 0 4 0 r-x-- libnih-dbus.so.1.0.0
00007f66cab1b000 0 0 0 ----- libnih-dbus.so.1.0.0
00007f66cad1b000 0 4 4 r---- libnih-dbus.so.1.0.0
00007f66cad1c000 0 0 0 rw--- libnih-dbus.so.1.0.0
00007f66cad1d000 0 8 0 r-x-- libnih.so.1.0.0
00007f66cad33000 0 0 0 ----- libnih.so.1.0.0
00007f66caf33000 0 4 4 r---- libnih.so.1.0.0
00007f66caf34000 0 4 4 rw--- libnih.so.1.0.0
00007f66caf35000 0 0 0 r-x-- ld-2.15.so
00007f66cafaf000 0 48 48 rw--- [ anon ]
00007f66cb133000 0 4 4 rw--- [ anon ]
00007f66cb155000 0 0 0 rw--- [ anon ]
00007f66cb157000 0 0 0 r---- ld-2.15.so
00007f66cb158000 0 0 0 rw--- ld-2.15.so
00007f66cb15a000 0 0 0 r-x-- upstart-udev-bridge
00007f66cb365000 0 4 4 r---- upstart-udev-bridge
00007f66cb366000 0 4 4 rw--- upstart-udev-bridge
00007f66cb750000 0 124 124 rw--- [ anon ]
00007f66cb771000 0 849976 847232 rw--- [ anon ]
00007fffb8a0b000 0 20 16 rw--- [ stack ]
00007fffb8a69000 0 4 0 r-x-- [ anon ]
ffffffffff600000 0 0 0 r-x-- [ anon ]
---------------- ------ ------ ------
total kB 1919108 857900 854744