apport information ** Attachment added: "JournalErrors.txt" https://bugs.launchpad.net/bugs/1653327/+attachment/4798509/+files/JournalErrors.txt
-- 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/1653327 Title: 100% cpu usage with 4.8 kernel after upgrade to 16.10 Status in linux package in Ubuntu: Confirmed Bug description: After upgrading my Sony Vaio Pro 13 to Lubuntu 16.10 and logging in for the first time, I noticed the fans were spinning crazy fast. Since nothing was open and I hadn't done anything since the upgrade yet, I looked at top. There it showed systemd-journal and rsyslog using 100% CPU. I looked at /var/log/syslog and there was a flood of messaging continually being appended of the form: ACPI Error: no handler or method for gpe ... disabling event ... The system was still somewhat usable, so I tried checking for updates, but there wasn't anything to update. Since I never encountered this error before, I tried installing a mainline kernel (4.9) from the Ubuntu mainline kernel PPA. I booted into the new, mainline kernel and no more 100% CPU usage. The only problem with using this kernel is that I can't use VirtualBox anymore because dkms has a compilation issue when building against the 4.9 kernel. Before upgrading to 16.10, I was using Lubuntu 16.04 with whatever the latest 4.4 kernel was at the time that 16.10 was released, which also worked just fine. The current (as of this writing) 4.8 kernel that is still causing problems is 4.8.0-32. --- ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mscdex 1812 F.... pulseaudio /dev/snd/controlC1: mscdex 1812 F.... pulseaudio CurrentDesktop: LXDE DistroRelease: Ubuntu 16.10 InstallationDate: Installed on 2013-12-07 (1119 days ago) InstallationMedia: Lubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016) MachineType: Sony Corporation SVP13213CXB Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-32-generic root=UUID=97c33b42-d845-488d-9a1f-d62e03702b16 ro quiet splash libata.force=noncq acpi_backlight=vendor vt.handoff=7 ProcVersionSignature: Ubuntu 4.8.0-32.34-generic 4.8.11 RelatedPackageVersions: linux-restricted-modules-4.8.0-32-generic N/A linux-backports-modules-4.8.0-32-generic N/A linux-firmware 1.161.1 Tags: yakkety Uname: Linux 4.8.0-32-generic x86_64 UpgradeStatus: Upgraded to yakkety on 2016-12-17 (14 days ago) UserGroups: adm audio cdrom dip lpadmin netdev plugdev sambashare sudo vboxusers wireshark _MarkForUpload: True dmi.bios.date: 11/05/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: R1041V7 dmi.board.asset.tag: N/A dmi.board.name: VAIO dmi.board.vendor: Sony Corporation dmi.board.version: N/A dmi.chassis.asset.tag: N/A dmi.chassis.type: 10 dmi.chassis.vendor: Sony Corporation dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR1041V7:bd11/05/2013:svnSonyCorporation:pnSVP13213CXB:pvrC60C2CVE:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: dmi.product.name: SVP13213CXB dmi.product.version: C60C2CVE dmi.sys.vendor: Sony Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1653327/+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
