Reopened because there's probably still a bug somewhere. Although this
bug is now assigned to xorg-server I don't actually think Xorg is to
blame. Xorg just owns the memory that applications have requested
resources within.
The Bug Description shows Xorg's RSS creeping over 700MB which does
sound like a bug. However xrestop does not seem to explain it, as that
only shows 110MB of usage.
The next step here is for you to figure out exactly which app is causing
the leakage. To test each app, please log out and in again, then leave
just one app running overnight and nothing else.
** Changed in: xorg-server (Ubuntu)
Status: Invalid => New
** No longer affects: libreoffice (Ubuntu)
** No longer affects: marco (Ubuntu)
** Changed in: xorg-server (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1884850
Title:
Xorg server uses unacceptably large amounts of memory (and keep
growing)
Status in xorg-server package in Ubuntu:
Incomplete
Bug description:
Description: Xorg server uses unacceptably large amounts of memory
(and keep growing)
Ever since I upgraded to Ubuntu 20.04 (with fresh install) on my
laptop (Lenovo T450s, Intel Core i5-5200U, Intel HD5500 graphics), I
have been troubled by the way Xorg process uses memory.
Here is an example of memory usage of Xorg as a function of time. I
rebooted the laptop on June 17:
Xorg-usage-20200617a.txt:root 1224 1.9 0.8 948408 98848 tty7
Rsl+ 10:38 0:05 \_ /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
Xorg-usage-20200617b.txt:root 1224 2.2 0.8 978264 105180 tty7
Ssl+ 10:38 0:22 \_ /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
Xorg-usage-20200618a.txt:root 1224 0.3 1.3 1143064 162584 tty7
Ssl+ Jun17 3:15 \_ /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
Xorg-usage-20200619a.txt:root 1224 0.3 2.9 1432232 360700 tty7
Ssl+ Jun17 12:30 \_ /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
Xorg-usage-20200619b.txt:root 1224 0.3 2.7 1313120 338656 tty7
Ssl+ Jun17 12:39 \_ /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
Xorg-usage-20200623a.txt:root 1224 0.3 6.0 1944364 738596 tty7
Ssl+ Jun17 31:55 \_ /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
The filename indicates the date the "ps fuxa" command was run.
Contrast this against the memory usage of another Xorg process run for XPRA:
Xorg-usage-20200617b.txt:wirawan 4452 2.4 2.0 1106920 244984 ?
Ssl 10:46 0:12 \_ /usr/lib/xorg/Xorg-for-Xpra-:100 -noreset -novtswitch
-nolisten tcp +extension GLX +extension RANDR +extension RENDER -auth
/home/wirawan/.Xauthority -logfile /run/user/1000/xpra/Xorg.:100.log -configdir
/run/user/1000/xpra/xorg.conf.d/4451 -config /etc/xpra/xorg.conf -depth 24 :100
Xorg-usage-20200618a.txt:wirawan 4452 0.2 2.0 1108572 246616 ?
Ssl Jun17 2:25 \_ /usr/lib/xorg/Xorg-for-Xpra-:100 -noreset -novtswitch
-nolisten tcp +extension GLX +extension RANDR +extension RENDER -auth
/home/wirawan/.Xauthority -logfile /run/user/1000/xpra/Xorg.:100.log -configdir
/run/user/1000/xpra/xorg.conf.d/4451 -config /etc/xpra/xorg.conf -depth 24 :100
Xorg-usage-20200619a.txt:wirawan 4452 0.2 2.0 1112460 249516 ?
Ssl Jun17 8:34 \_ /usr/lib/xorg/Xorg-for-Xpra-:100 -noreset -novtswitch
-nolisten tcp +extension GLX +extension RANDR +extension RENDER -auth
/home/wirawan/.Xauthority -logfile /run/user/1000/xpra/Xorg.:100.log -configdir
/run/user/1000/xpra/xorg.conf.d/4451 -config /etc/xpra/xorg.conf -depth 24 :100
Xorg-usage-20200619b.txt:wirawan 4452 0.2 2.0 1112964 250020 ?
Ssl Jun17 8:40 \_ /usr/lib/xorg/Xorg-for-Xpra-:100 -noreset -novtswitch
-nolisten tcp +extension GLX +extension RANDR +extension RENDER -auth
/home/wirawan/.Xauthority -logfile /run/user/1000/xpra/Xorg.:100.log -configdir
/run/user/1000/xpra/xorg.conf.d/4451 -config /etc/xpra/xorg.conf -depth 24 :100
Xorg-usage-20200623a.txt:wirawan 4452 0.1 2.0 1113092 250544 ?
Ssl Jun17 11:22 \_ /usr/lib/xorg/Xorg-for-Xpra-:100 -noreset -novtswitch
-nolisten tcp +extension GLX +extension RANDR +extension RENDER -auth
/home/wirawan/.Xauthority -logfile /run/user/1000/xpra/Xorg.:100.log -configdir
/run/user/1000/xpra/xorg.conf.d/4451 -config /etc/xpra/xorg.conf -depth 24 :100
My desktop usage pattern:
* MATE desktop
* 4-desktop setting (standard default MATE when shipped)
* GNUCASH
* about 3 windows of terminal (each about 5-10 tabs)
* XPRA running Firefox web browser (to isolate web browser pixmap memory
usage, if that was the culprit)
* LibreOffice (several windows open at any time)
* using "redshift" to change the desktop color to red at night
I have never seen this before using Ubuntu 20.04 on this machine.
Before, when I was running Debian 8, I could run this machine for months
literally without Xorg memory bloating rapidly like this (but then I was using
xfce instead of MATE).
I viewed the output of xrestop, the pixmap memory usage is dominated by marco
and wnck-applet:
xrestop - Display: localhost
Monitoring 36 clients. XErrors: 0
Pixmaps: 110748K total, Other: 84K total, All: 110833K
total
res-base Wins GCs Fnts Pxms Misc Pxm mem Other Total PID
Identifier
1000000 20 5 2 27 1701 70198K 42K 70241K 2585 marco
1c00000 9 4 0 9 56 30428K 1K 30430K 2612
wnck-applet
1400000 8 4 1 21 116 3134K 4K 3138K 2603 Desktop
0000000 2 0 2 0 178 2700K 6K 2706K ?
<unknown>
3e00000 0 0 0 1 0 2700K 0B 2700K ?
<unknown>
3a00000 17 3 1 8 92 1024K 3K 1027K 3728
(terminal)
In the previous boot (starting May 27 and ending June 17), the XOrg
memory consumption grew to 1.7 GB total.
I don't know exactly which software is responsible to cause this
problem, so I started out with xorg server.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xserver-xorg-core 2:1.20.8-2ubuntu2.1
ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
Uname: Linux 5.4.0-37-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: MATE
Date: Tue Jun 23 18:47:52 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00 [VGA
controller])
Subsystem: Lenovo HD Graphics 5500 [17aa:5036]
MachineType: LENOVO 20BXCTO1WW
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-37-generic
root=UUID=4eafd225-50c7-46d9-b3f9-7982493a300d ro quiet splash vt.handoff=7
SourcePackage: xorg-server
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/23/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: JBET55WW (1.20 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BXCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: 0B98417 PRO
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrJBET55WW(1.20):bd12/23/2015:svnLENOVO:pn20BXCTO1WW:pvrThinkpadT450s:rvnLENOVO:rn20BXCTO1WW:rvr0B98417PRO:cvnLENOVO:ct10:cvrNone:
dmi.product.family: Thinkpad T450s
dmi.product.name: 20BXCTO1WW
dmi.product.sku: LENOVO_MT_20BX_BU_Think_FM_Thinkpad T450s
dmi.product.version: Thinkpad T450s
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.4-2ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
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