I have looked into this and have a fix and an explanation. First, please be mindful of this bugs many subscribers before following up with non-technical comments.
The bug appears to be in libappindicator itself. The call to app_indicator_set_menu leaks the old menu every time a new menu is passed in. It should instead sink any floating ref on the old menu than just unconditionally adding a new reference (see [1] for technical details on what the heck that means). There's actually two possible ways to fix this. (A) change libappindicator to sink the ref, which would arguably be an API change. Or (B) change gnome-power-manager to manually unref the menu after passing it to libappindicator. I'm going with (A) for now and have filed a patch against libappindicator [2]. I suspect that even if method (A) is approved and merged for natty, method (B) is most appropriate for any possible SRUs. [1] http://library.gnome.org/devel/gobject/stable/gobject-The-Base-Object-Type.html#floating-ref [2] https://code.launchpad.net/~mterry/libappindicator/fix-menu-leak/+merge/53247 -- You received this bug notification because you are a member of TI OMAP Developers, which is a direct subscriber. https://bugs.launchpad.net/bugs/569273 Title: memory leak in gnome-power-manager Status in Application Indicators: Fix Released Status in “gnome-power-manager” package in Ubuntu: Invalid Status in “indicator-application” package in Ubuntu: Fix Released Status in “gnome-power-manager” source package in Lucid: Invalid Status in “indicator-application” source package in Lucid: Triaged Status in “gnome-power-manager” source package in Maverick: Confirmed Status in “indicator-application” source package in Maverick: Confirmed Bug description: TEST CASE: (at the beginning because it's a long post): 1. Monitor the output of the command for a few hours $ watch -n1 'grep heap -A11 /proc/$( pidof gnome-power-manager )/smaps' VERIFICATION SUCCEEDED: - Memory usage is stable over time DESCRIPTION: Binary package hint: gnome-power-manager gnome-power-manager (2.30.0-0ubuntu1) seems to have a memory leak my machine running Lucid. I witnessed it using up to 120MB in the RES column according to "top". My machine is 64 bit and is connected to a APC uninterruptible power supply. I haven't yet tried unplugging it to see if the UPS is somehow related to this problem. Another person reported a similar problem in bug #196688 comment 25. Opening a new bug seemed like a good idea since that bug was fixed 2 years ago. Here is some information for what gnome-power-manager looks like after running for a long period of time (from /proc/`pidof gnome-power-manager`/smaps): 0147b000-08810000 rw-p 00000000 00:00 0 [heap] Size: 118356 kB Rss: 118188 kB Pss: 118188 kB Shared_Clean: 0 kB Shared_Dirty: 0 kB Private_Clean: 0 kB Private_Dirty: 118188 kB Referenced: 118020 kB Swap: 0 kB KernelPageSize: 4 kB MMUPageSize: 4 kB I rebooted my machine and let it sit at the login screen. I logged via ssh and found that gnome-power-manager was using the following: 01f6e000-02075000 rw-p 00000000 00:00 0 [heap] Size: 1052 kB Rss: 944 kB Pss: 944 kB Shared_Clean: 0 kB Shared_Dirty: 0 kB Private_Clean: 0 kB Private_Dirty: 944 kB Referenced: 944 kB Swap: 0 kB KernelPageSize: 4 kB MMUPageSize: 4 kB I logged out of my ssh session and didn't touch the machine until 5 and 1/2 hours later---and I logged in again remotely with ssh to check on gnome-power-manager and found: 01f6e000-02e5d000 rw-p 00000000 00:00 0 [heap] Size: 15292 kB Rss: 15280 kB Pss: 15280 kB Shared_Clean: 0 kB Shared_Dirty: 0 kB Private_Clean: 0 kB Private_Dirty: 15280 kB Referenced: 15280 kB Swap: 0 kB KernelPageSize: 4 kB MMUPageSize: 4 kB ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: gnome-power-manager 2.30.0-0ubuntu1 ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2 Uname: Linux 2.6.32-21-generic x86_64 NonfreeKernelModules: nvidia Architecture: amd64 Date: Fri Apr 23 22:23:32 2010 GnomeSessionIdleInhibited: No GnomeSessionInhibitors: None GnomeSessionSuspendInhibited: No MachineType: DELL Inc. XPS 730X ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=e3f32a1f-7be3-45c9-9096-fa696ad50df3 ro quiet splash ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-power-manager dmi.bios.date: 07/16/2009 dmi.bios.vendor: DELL INC. dmi.bios.version: 1.0.5 dmi.board.name: 0P270J dmi.board.vendor: DELL Inc. dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: DELL Inc. dmi.modalias: dmi:bvnDELLINC.:bvr1.0.5:bd07/16/2009:svnDELLInc.:pnXPS730X:pvr00:rvnDELLInc.:rn0P270J:rvrA00:cvnDELLInc.:ct3:cvr: dmi.product.name: XPS 730X dmi.product.version: 00 dmi.sys.vendor: DELL Inc. _______________________________________________ Mailing list: https://launchpad.net/~tiomap-dev Post to : tiomap-dev@lists.launchpad.net Unsubscribe : https://launchpad.net/~tiomap-dev More help : https://help.launchpad.net/ListHelp
