Memory leak in xorg?

[Roberto Ragusa]

On 02/03/2013 12:47 AM, Maseood Raisi wrote:
> I use xorg-x11-server-Xorg-1.12.4-2.fc17.x86_64 with priority Nvidia
> Driver with KDM-Kwin-KDE ...
> 
> I don't know which one has memory leak but plasma-desktop and kwin and
> kdm use normal memory (I mean after working for some days with my
> system, the memory usage of them is the same or very little change)
> but the X process collect my ram and won't get it back, if I continue to
> use my system, it can reach 700 MiB or even going over GiB ...
> I don't know wich one have memory leak (if this is realy a leak)
> 
> can anyone help?
> 
> what is this in line 6 of pmap output? (it's growing as I work with my
> system and it won't release the memory)
> 0000000001944000 164852K rw---    [ anon ]
> 
> here is X memory usage information:
> -------------------------------------------------------------------------------------------
> top output:
> 
> 1114 root      20   0  370m 245m  77m R 80.4  6.6  24:09.32 X
> -------------------------------------------------------------------------------------------
> xrestop output:
> 
> xrestop - Display: localhost:0
>           Monitoring 38 clients. XErrors: 0
>           Pixmaps:   39231K total, Other:     137K total, All:   39368K
> total
> -------------------------------------------------------------------------------------------
> pmap 1114 output:
> 
> 1114:   /usr/bin/X :0 vt1 -background none -nolisten tcp -auth
> /var/run/kdm/A:0-TNko1a
> 0000000000400000   1808K r-x--  /usr/bin/Xorg
> 00000000007c3000     12K r----  /usr/bin/Xorg
> 00000000007c6000     44K rw---  /usr/bin/Xorg
> 00000000007d1000     64K rw---    [ anon ]
> 00000000009d0000     44K rw---  /usr/bin/Xorg
> 0000000001944000 164852K rw---    [ anon ]

Your pixmaps usage does not seem extremely high, but I would like to point
you to this problem I have discovered with xorg and plasma-desktop:

  http://lists.x.org/archives/xorg-devel/2012-November/034555.html

so you can experiment a bit.
(BTW, my patch has been ignored until now)

-- 
   Roberto Ragusa    mail at robertoragusa.it