Memory leak via creation of multiple identical processes

[Sergey "Shnatsel" Davidoff]

According to output of "ps ax", I've got 57 processes displayed as "/usr/lib/cups/notifier/dbus dbus://" on my system, and I haven't even connected my printer to the PC this boot. According to gnome-system-monitor, every process eats up 1,6Mb of memory, so I've got 56*1,6=90Mb of memory leaked.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: cups 1.5.2-9ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
CupsErrorLog:
 W [14/May/2012:11:32:09 +0400] failed to CreateProfile: org.freedesktop.ColorManager.AlreadyExists:profile id 'MP210-series-Gray..' already exists
 W [14/May/2012:11:32:09 +0400] failed to CreateProfile: org.freedesktop.ColorManager.AlreadyExists:profile id 'MP210-series-RGB..' already exists
 W [14/May/2012:11:32:09 +0400] failed to CreateDevice: org.freedesktop.ColorManager.AlreadyExists:device id 'cups-MP210-series' already exists
Date: Mon May 14 23:26:51 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120303)
Lpstat: device for MP210-series: usb://Canon/MP210%20series?serial=22F77E&interface=1
MachineType: Hewlett-Packard HP Compaq dx7400 Microtower
Papersize: a4
PpdFiles: MP210-series: Canon PIXMA MP210 - CUPS+Gutenprint v5.2.8-pre1
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=ru_RU.UTF-8
 SHELL=/usr/bin/fish
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=3ff15979-0716-40bd-b0b6-5b1f555934b9 ro quiet splash vt.handoff=7
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/25/2007
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: MS7352 1.08
dmi.board.name: 0AB8
dmi.board.vendor: MSI
dmi.chassis.asset.tag: CZC7515HNN
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrMS73521.08:bd10/25/2007:svnHewlett-Packard:pnHPCompaqdx7400Microtower:pvr:rvnMSI:rn0AB8:rvr:cvnMSI:ct3:cvr:
dmi.product.name: HP Compaq dx7400 Microtower
dmi.sys.vendor: Hewlett-Packard

[Till Kamppeter (till-kamppeter)]

Lars, did you not fix a thing like this in Precise?

[Lars Karlitski (larsu)]

This seems to be the same issue as bug #959195.

Sergey, if you don't have any custom CUPS subscriptions set up, can you please delete all of them with these commands:

  sudo stop cups
  sudo rm /etc/cups/subscriptions.conf*
  sudo rm -r /var/cache/cups
  sudo start cups

(See the aforementioned bug for a more detailed description.)

The amount cups dbus notifier processes should go down immediately.

[Sergey "Shnatsel" Davidoff (shnatsel)]

I've been running Precise since Beta1 on this box, so that's probably a problem with leftover configs. It seems to be fixed after purging them as you said. I'll let you know if the problem reappears.

Thanks for such a swift reply!