Tested systems -E6400 with 3Gb ram, 3Gb swap gnome 3.26 and 3.28 kernel 4.12 and 4.15 -I5 320m with 4gb ram 4gb swap /gnome 3.28
-- 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/1504914 Title: System freeze/restart on high memory usage Status in linux package in Ubuntu: Confirmed Bug description: What is expected to happen is when all RAM and swap is either nearly or fully consumed by a process or application, the OS remains responsive, it doesn't crash to the login screen, and eventually the process or application asking for the majority of resources is force closed. What happens instead is the mouse stops responding promptly or not at all, and eventually the system resets to the logon screen. Specific scenarios to reproduce: - First, when having several chrome tabs open, press CTRL+T several times and arrive to a memory limit. - Second, I experience this when using virtualbox, given that the VM was asking for half of the memory available, as soon as I open a couple of tabs in chrome in the host the system started to be unusable. - Third, to reproduce it easily I've installed memtester application and run a couple of instances of it asking 2G chunks, this effectively reproduce the crash very effectively. I've checked: - All 4GB of memory passed memtest86+. - Tested with and without 4GB swap file same crash. Untested: Adding in /etc/rc.local : sysctl vm.vfs_cache_pressure=100000 WORKAROUND: By adding into /etc/sysctl.conf the following, I'm not losing control of the system even if it slows down when ramping up the swap use: vm.min_free_kbytes=131072 vm.swappiness=5 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-65-generic 3.13.0-65.106 ProcVersionSignature: Ubuntu 3.13.0-65.106-generic 3.13.11-ckt26 Uname: Linux 3.13.0-65-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.15 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: yas 3625 F.... pulseaudio CurrentDesktop: Unity Date: Sun Oct 11 10:41:41 2015 InstallationDate: Installed on 2015-01-17 (266 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X3E/900X4C/900X4D ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-65-generic.efi.signed root=UUID=c5d1dcf0-367e-4643-99f9-735befcdaba1 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-65-generic N/A linux-backports-modules-3.13.0-65-generic N/A linux-firmware 1.127.15 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/15/2015 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P11ABK dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: NP900X3E-A01ES dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP11ABK:bd07/15/2015:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X3E/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP900X3E-A01ES:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 900X3C/900X3D/900X3E/900X4C/900X4D dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1504914/+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
