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Seems that xorg has a memory leak. On 28th day of uptime it consumes 13G
of virtualy memory on my PC:


 PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND      
                       
21516 root      20   0 13,340g 8,351g  49036 S   7,3 53,7   3387:19 Xorg        
        

xrestop does not show anything suspicious:

xrestop - Display: localhost
          Monitoring 23 clients. XErrors: 0
          Pixmaps:  171661K total, Other:     138K total, All:  171800K total

res-base Wins  GCs Fnts Pxms Misc   Pxm mem  Other   Total   PID Identifier    
1e00000     1    1    0   23  345    81170K      8K  81178K   ?   xcompmgr
0800000    31   17    1   17  268    45896K      8K  45904K   ?   i3
0000000     1    0    2    0  157    20111K      5K  20116K   ?   i3
2000000    33   18    1   19  157    18527K      5K  18533K 23441 Thunderbird
0c00000    27   14    1    4  117     3826K      4K   3830K 21872 emacs
1200000    41    3    1   12 3452     1560K     82K   1642K 21822 Terminal
0e00000     3    4    0    3    9      570K    384B    570K   ?   i3bar for 
output DP2
1c00000     2    1    3    0  173        0B      7K      7K   ?   screensaver
2400000     2    2    0    0  152        4B      3K      3K 25174 notify-osd
1800000     3    1    0    0  130        0B      3K      3K   ?   <unknown>
2800000     0    1    0    0  106        0B      2K      2K   ?   <unknown>
1400000     8   31    1    1   11        4B      2K      2K 31068 
chromium-browser
1600000     4    1    1    0   45        0B      2K      2K 31068 Report a bug 
: Bugs : linux package :
2600000     4    3    0    0   49        8B      1K      1K 25553 Network
2c00000     3    1    0    0   12        0B    384B    384B 21027 
gnome-screensaver
1000000     0    1    0    0    2        0B     72B     72B   ?   <unknown>
2a00000     1    1    0    0    0        0B     48B     48B   ?   xrestop
1a00000     1    1    0    0    0        0B     48B     48B   ?   <unknown>
0400000     1    1    0    0    0        0B     48B     48B   ?   <unknown>
2200000     0    1    0    0    0        0B     24B     24B   ?   <unknown>
0600000     0    1    0    0    0        0B     24B     24B   ?   <unknown>
0a00000     0    0    0    0    0        0B      0B      0B   ?   <unknown>


Description:    Ubuntu 16.04.2 LTS
Release:        16.04

xorg:
  Installed: 1:7.7+13ubuntu3
  Candidate: 1:7.7+13ubuntu3
  Version table:
 *** 1:7.7+13ubuntu3 500
        500 http://ua.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status
--- 
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  lorc       1736 F.... pulseaudio
CurrentDesktop: i3
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=6071d270-1c91-42c9-a5e5-fb2326b04098
InstallationDate: Installed on 2016-10-04 (253 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: HP HP ProDesk 600 G2 SFF
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-75-generic.efi.signed 
root=UUID=60ffd1b6-b4b8-4a93-a697-cb95f923a535 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-75.96-generic 4.4.59
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-75-generic N/A
 linux-backports-modules-4.4.0-75-generic  N/A
 linux-firmware                            1.157.8
RfKill:
 0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
Tags:  xenial
Uname: Linux 4.4.0-75-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo uucp
_MarkForUpload: True
dmi.bios.date: 11/01/2016
dmi.bios.vendor: HP
dmi.bios.version: N02 Ver. 02.17
dmi.board.name: 805D
dmi.board.vendor: HP
dmi.board.version: KBC Version 05.22
dmi.chassis.asset.tag: CZC5520SDC
dmi.chassis.type: 4
dmi.chassis.vendor: HP
dmi.modalias: 
dmi:bvnHP:bvrN02Ver.02.17:bd11/01/2016:svnHP:pnHPProDesk600G2SFF:pvr:rvnHP:rn805D:rvrKBCVersion05.22:cvnHP:ct4:cvr:
dmi.product.name: HP ProDesk 600 G2 SFF
dmi.sys.vendor: HP

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-collected xenial
-- 
Memory leak in xorg.
https://bugs.launchpad.net/bugs/1697929
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is subscribed to xorg in Ubuntu.

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