** Description changed: - I'm running AWS EC2 t2.micro instance with below ubuntu version. - ubuntu-wily-15.10-amd64-server-20151203 (ami-7d948911) + I'm running AWS EC2 t2.micro instance with below ubuntu version. + ubuntu-wily-15.10-amd64-server-20151203 (ami-7d948911) 4.2.0-23-generic Periodically around once per day my instance consumes 100% CPU by kswapd0 kernell process. - Instance restart helps, otherwise this continues. + Instance restart helps, otherwise this continues. I have no swap configured. + + Could be related to #721896 ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-23-generic 4.2.0-23.28 ProcVersionSignature: User Name 4.2.0-23.28-generic 4.2.6 Uname: Linux 4.2.0-23-generic x86_64 AlsaDevices: - total 0 - crw-rw---- 1 root audio 116, 1 Jan 9 07:44 seq - crw-rw---- 1 root audio 116, 33 Jan 9 07:44 timer + total 0 + crw-rw---- 1 root audio 116, 1 Jan 9 07:44 seq + crw-rw---- 1 root audio 116, 33 Jan 9 07:44 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Sat Jan 9 20:32:49 2016 Ec2AMI: ami-7d948911 Ec2AMIManifest: (unknown) Ec2AvailabilityZone: eu-central-1a Ec2InstanceType: t2.micro Ec2Kernel: unavailable Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 MachineType: Xen HVM domU PciMultimedia: - + ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcFB: - 0 cirrusdrmfb - 1 xen + 0 cirrusdrmfb + 1 xen ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-23-generic root=UUID=73008cf2-451d-4df0-a2e6-16ffb91670c7 ro console=tty1 console=ttyS0 RelatedPackageVersions: - linux-restricted-modules-4.2.0-23-generic N/A - linux-backports-modules-4.2.0-23-generic N/A - linux-firmware 1.149.3 + linux-restricted-modules-4.2.0-23-generic N/A + linux-backports-modules-4.2.0-23-generic N/A + linux-firmware 1.149.3 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/07/2015 dmi.bios.vendor: Xen dmi.bios.version: 4.2.amazon dmi.chassis.type: 1 dmi.chassis.vendor: Xen dmi.modalias: dmi:bvnXen:bvr4.2.amazon:bd12/07/2015:svnXen:pnHVMdomU:pvr4.2.amazon:cvnXen:ct1:cvr: dmi.product.name: HVM domU dmi.product.version: 4.2.amazon dmi.sys.vendor: Xen
-- 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/1532480 Title: kswapd0 consumes 100% CPU Status in linux package in Ubuntu: Confirmed Bug description: I'm running AWS EC2 t2.micro instance with below ubuntu version. ubuntu-wily-15.10-amd64-server-20151203 (ami-7d948911) 4.2.0-23-generic Periodically around once per day my instance consumes 100% CPU by kswapd0 kernell process. Instance restart helps, otherwise this continues. I have no swap configured. Could be related to #721896 ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-23-generic 4.2.0-23.28 ProcVersionSignature: User Name 4.2.0-23.28-generic 4.2.6 Uname: Linux 4.2.0-23-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jan 9 07:44 seq crw-rw---- 1 root audio 116, 33 Jan 9 07:44 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Sat Jan 9 20:32:49 2016 Ec2AMI: ami-7d948911 Ec2AMIManifest: (unknown) Ec2AvailabilityZone: eu-central-1a Ec2InstanceType: t2.micro Ec2Kernel: unavailable Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 MachineType: Xen HVM domU PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb 1 xen ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-23-generic root=UUID=73008cf2-451d-4df0-a2e6-16ffb91670c7 ro console=tty1 console=ttyS0 RelatedPackageVersions: linux-restricted-modules-4.2.0-23-generic N/A linux-backports-modules-4.2.0-23-generic N/A linux-firmware 1.149.3 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/07/2015 dmi.bios.vendor: Xen dmi.bios.version: 4.2.amazon dmi.chassis.type: 1 dmi.chassis.vendor: Xen dmi.modalias: dmi:bvnXen:bvr4.2.amazon:bd12/07/2015:svnXen:pnHVMdomU:pvr4.2.amazon:cvnXen:ct1:cvr: dmi.product.name: HVM domU dmi.product.version: 4.2.amazon dmi.sys.vendor: Xen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1532480/+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
