Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.19 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc6 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 Status in linux package in Ubuntu: Incomplete Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1794763/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
