[Pkg-xfce-devel] Bug#734526: Bug#734526: lightdm-gtk-greeter: leaking memory

[Zlatko Calusic]

On 07.01.2014 22:36, Yves-Alexis Perez wrote:
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> Hash: SHA512
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> On Tue, Jan 07, 2014 at 09:49:48PM +0100, Zlatko Calusic wrote:
>> Package: lightdm-gtk-greeter
>> Version: 1.6.1-4
>> Severity: normal
>>
>> USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
>> root     27352  0.2  0.8 143040 36104 tty7     Ss+  17:25   0:22 /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
>> lightdm  27370  0.4  0.6 401064 26404 ?        Ssl  17:25   0:45 /usr/sbin/lightdm-gtk-greeter
>>
>> An hour later...
>>
>> root     27352  0.2  0.9 145452 38476 tty7     Ss+  17:25   0:30 /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
>> lightdm  27370  0.4  0.6 402252 27460 ?        Ssl  17:25   1:01 /usr/sbin/lightdm-gtk-greeter
>>
>> That's about +1MB RSS per hour for lightdm-gtk-greeter, and about +2MB RSS per
>> hour for X. Last time I went on a 2 week vacation, when I returned greeter had
>> half a gig RSS. Forgot to screenshot it.
>>
>> To make matters worse, X is not releasing allocated memory after login. It
>> persists until the end of the session, when it is finally restarted.
>>
>> I tried reverting to the default theme (Adwaita), but it doesn't change a
>> thing (still leaks).
>>
>> Finally, CPU usage is also a bit problematic. I suspect it is somehow connected
>> to the memory leak. Eventhough 0.2 - 0.4% CPU is not much, it's still unexpected
>> for a display manager. Not to mention that it doesn't allow CPU on an otherwise
>> dormant machine to go to deep sleep and probably wastes a lot of power.
>
> Can you provide a valgrind log? See
> http://valgrind.org/docs/manual/quick-start.html
>

I replaced `start-stop-daemon --start --quiet --pidfile 
/var/run/lightdm.pid --name lightdm --exec $DAEMON -b|| echo -n " 
already running"' in /etc/init.d/lightdm with `valgrind --leak-check=yes 
$DAEMON', fired up screen and run `/etc/init.d/lightdm start >out 2>err' 
in it. Will send you the files in about an hour, after I ctrl-C it.

I hope that's what you need? Never run valgrind before. :P

-- 
Zlatko