You have been subscribed to a public bug: 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. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: bot-comment kernel-bug yakkety -- 100% cpu usage with 4.8 kernel after upgrade to 16.10 https://bugs.launchpad.net/bugs/1653327 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- 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