Public bug reported:
I observed this occasionally on Ubuntu 16.04 and very frequently on
Ubuntu 18.04 (Ubuntu 18.04.1 LTS)
I can reproduce it with a regular use of Chromium, Firefox or
LibreOffice, by instance.
In a Ubuntu system, when there is "little" free memory, if I open some new tabs
on the browser, the system freezes and it's impossible to do anything.
Also, there are some worksheets that I can open quickly and without problems
when I have a lot of free memory, but when I try to open the same document with
little free memory, the system freezes.
Then, sometimes the system becomes very very slow but I can change to a tty and
enter some commands to kill Chromium, Firefox or LibreOffice... and the system
responds again.
Sometimes, after and hour or so the system accept commands again.
Although it's also possible "recover" the system using SysRq
memory-full-oom-kill(f), but with the consequence of the crashing of one or
more applications (it doesn't have to be the one that apparently caused the
problem)
In all cases, the hard disk starts to work intensely... until the system
has returned to "normal" condition.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-34-generic 4.15.0-34.37
ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.3
Architecture: amd64
AudioDevicesInUse:
Cannot stat file /proc/28087/fd/23: Permission denied
USER PID ACCESS COMMAND
/dev/snd/controlC1: carles 1811 F.... pulseaudio
/dev/snd/controlC0: carles 1811 F.... pulseaudio
Date: Thu Sep 27 15:10:47 2018
HibernationDevice: RESUME=UUID=f06d0abe-a1c3-43f8-8413-9dac4c4a2c8d
InstallationDate: Installed on 2016-03-07 (934 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
IwConfig:
eno1 no wireless extensions.
lo no wireless extensions.
MachineType: HP HP ProDesk 600 G2 SFF
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=ca_ES.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-34-generic
root=UUID=31064b95-e0f1-4307-a03e-8cc5b5210093 ro rootflags=subvol=@ quiet
splash reboot=pci vt.handoff=1
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-4.15.0-34-generic N/A
linux-backports-modules-4.15.0-34-generic N/A
linux-firmware 1.173.1
RfKill:
SourcePackage: linux
UpgradeStatus: Upgraded to bionic on 2018-09-06 (21 days ago)
dmi.bios.date: 07/17/2018
dmi.bios.vendor: HP
dmi.bios.version: N02 Ver. 02.36
dmi.board.name: 805D
dmi.board.vendor: HP
dmi.board.version: KBC Version 05.36
dmi.chassis.asset.tag: CZC60572P2
dmi.chassis.type: 4
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrN02Ver.02.36:bd07/17/2018:svnHP:pnHPProDesk600G2SFF:pvr:rvnHP:rn805D:rvrKBCVersion05.36:cvnHP:ct4:cvr:
dmi.product.family: 103C_53307F G=D
dmi.product.name: HP ProDesk 600 G2 SFF
dmi.sys.vendor: HP
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic disk-use memory-usage
** Description changed:
I observed this occasionally on Ubuntu 16.04 and very frequently on
Ubuntu 18.04 (Ubuntu 18.04.1 LTS)
I can reproduce it with a regular use of Chromium, Firefox or
LibreOffice, by instance.
- In a system with 4Gib of RAM, when there is "little" free memory, if I open
some new tabs on the browser, the system freezes and it's impossible to do
anything.
+ In a Ubuntu system, when there is "little" free memory, if I open some new
tabs on the browser, the system freezes and it's impossible to do anything.
Also, there are some worksheets that I can open quickly and without problems
when I have a lot of free memory, but when I try to open the same document with
little free memory, the system freezes.
- Sometimes, the system becomes very very slow but I can change to a tty and
enter some commands to kill Chromium, Firefox or LibreOffice... and the system
responds again.
- Sometimes, after and hour or so the system accept commands again.
+ Then, sometimes the system becomes very very slow but I can change to a tty
and enter some commands to kill Chromium, Firefox or LibreOffice... and the
system responds again.
+ Sometimes, after and hour or so the system accept commands again.
Although it's also possible "recover" the system using SysRq
memory-full-oom-kill(f), but with the consequence of the crashing of one or
more applications (it doesn't have to be the one that apparently caused the
problem)
In all cases, the hard disk starts to work intensely... until the system
has returned to "normal" condition.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-34-generic 4.15.0-34.37
ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.3
Architecture: amd64
AudioDevicesInUse:
- Cannot stat file /proc/28087/fd/23: Permission denied
- USER PID ACCESS COMMAND
- /dev/snd/controlC1: carles 1811 F.... pulseaudio
- /dev/snd/controlC0: carles 1811 F.... pulseaudio
+ Cannot stat file /proc/28087/fd/23: Permission denied
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC1: carles 1811 F.... pulseaudio
+ /dev/snd/controlC0: carles 1811 F.... pulseaudio
Date: Thu Sep 27 15:10:47 2018
HibernationDevice: RESUME=UUID=f06d0abe-a1c3-43f8-8413-9dac4c4a2c8d
InstallationDate: Installed on 2016-03-07 (934 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
IwConfig:
- eno1 no wireless extensions.
-
- lo no wireless extensions.
+ eno1 no wireless extensions.
+
+ lo no wireless extensions.
MachineType: HP HP ProDesk 600 G2 SFF
ProcEnviron:
- TERM=xterm-256color
- PATH=(custom, no user)
- LANG=ca_ES.UTF-8
- SHELL=/bin/bash
+ TERM=xterm-256color
+ PATH=(custom, no user)
+ LANG=ca_ES.UTF-8
+ SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-34-generic
root=UUID=31064b95-e0f1-4307-a03e-8cc5b5210093 ro rootflags=subvol=@ quiet
splash reboot=pci vt.handoff=1
PulseList:
- Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
- No PulseAudio daemon running, or not running as session daemon.
+ Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
+ No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
- linux-restricted-modules-4.15.0-34-generic N/A
- linux-backports-modules-4.15.0-34-generic N/A
- linux-firmware 1.173.1
+ linux-restricted-modules-4.15.0-34-generic N/A
+ linux-backports-modules-4.15.0-34-generic N/A
+ linux-firmware 1.173.1
RfKill:
-
+
SourcePackage: linux
UpgradeStatus: Upgraded to bionic on 2018-09-06 (21 days ago)
dmi.bios.date: 07/17/2018
dmi.bios.vendor: HP
dmi.bios.version: N02 Ver. 02.36
dmi.board.name: 805D
dmi.board.vendor: HP
dmi.board.version: KBC Version 05.36
dmi.chassis.asset.tag: CZC60572P2
dmi.chassis.type: 4
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrN02Ver.02.36:bd07/17/2018:svnHP:pnHPProDesk600G2SFF:pvr:rvnHP:rn805D:rvrKBCVersion05.36:cvnHP:ct4:cvr:
dmi.product.family: 103C_53307F G=D
dmi.product.name: HP ProDesk 600 G2 SFF
dmi.sys.vendor: HP
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https://bugs.launchpad.net/bugs/1794763
Title:
High utilisation of memory freezes Ubuntu completely for a long time,
with an extremely high access to the hard disk
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