My computer cannot boot the v4.14-rc4 kernel because the amd64 package is a failed build and my motherboard does not support 32 bit operating systems. Running the v4.14rc3 mainline kernel I was unable to connect to the internet, (so could not get firefox to use enough memory to reproduce the bug), but the attached C++ program made my computer become completely unresponsive in under a second.
** Attachment added: "testthrash.cpp" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722778/+attachment/4968205/+files/testthrash.cpp ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Tags added: kernel-bug-exists-upstream -- 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/1722778 Title: System frequently becomes completely unresponsive due to thrashing Status in linux package in Ubuntu: Confirmed Bug description: To replicate: Run firefox for a couple of hours. Expected results: All open applications should run normally: occasional slowdown for page faults are tolerable but the observed behaviour is not. Actual results: Several times per day my computer will become completely unresponsive apart from high hard disk activity. Once it enters this state: it will not recover without a hard reset regardless of any time waited or input given. On one occasion I have tested it by leaving it thrashing for 12 hours, at the end of which there was no evidence of progress. This behaviour was not observed when running Ubuntu 16.04 on the same computer and swap settings. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-12-generic 4.13.0-12.13 ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3 Uname: Linux 4.13.0-12-generic x86_64 ApportVersion: 2.20.7-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: jeremy 3367 F...m pulseaudio /dev/snd/controlC0: jeremy 3367 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Thu Oct 12 00:41:01 2017 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=6ef78518-5d77-4673-9917-36ed31b247d9 InstallationDate: Installed on 2017-08-15 (56 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) MachineType: LENOVO 80TV ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.13.0-12-generic root=UUID=f2087105-8407-42b8-af6c-f00fe6846c51 ro rootflags=subvol=@ quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-12-generic N/A linux-backports-modules-4.13.0-12-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-09-14 (27 days ago) dmi.bios.date: 03/07/2017 dmi.bios.vendor: LENOVO dmi.bios.version: 3JCN26WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: VIUU4 dmi.board.vendor: LENOVO dmi.board.version: SDK0K17763 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo ideapad 310-15IKB dmi.modalias: dmi:bvnLENOVO:bvr3JCN26WW:bd03/07/2017:svnLENOVO:pn80TV:pvrLenovoideapad310-15IKB:rvnLENOVO:rnVIUU4:rvrSDK0K17763WIN:cvnLENOVO:ct10:cvrLenovoideapad310-15IKB: dmi.product.family: IDEAPAD dmi.product.name: 80TV dmi.product.version: Lenovo ideapad 310-15IKB dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722778/+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