Hi, since 3 weeks I have tried to track the reasons for a kernel panic I had with my Thinkpad T450s.
Unfortunately, the panic happen only one in many hours and isolating the true reasons was very difficult. I'm quite sure now that it's not related to intel graphics nor the intel wifi driver (graphics was my ideal suspect). What I have found (95% certitude): - the panic occur only on when on battery - removing the TLP package solve the issue (so, it's probably a driver flag set by TLP that causes the issue) - Upgrading to upstream kernel 4.3RC4/5 definitely solve the problem. FYI: when the panic occurs, the screen/image completely freezes, no kernel logs, no magic key working. Hope it helps ! Lorenzo -- 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/1499421 Title: kernel panic on boot after upgrade to ubuntu 15.10 Status in linux package in Ubuntu: Confirmed Status in linux source package in Wily: Confirmed Bug description: the installed Kernel in the release upgrade to the development line of ubuntu 15.10 creates a kernel panic on my Lenovo yoga 2 pro the previously isntalled ubuntu 15.04 Kernel does still boot. Ubuntu Release: Description: Ubuntu Wily Werewolf (development branch) Release: 15.10 Expected: Clean Upgrade to 150.10 development branch reboot happend instead: system got updated but dropped to a non responding cmd after a reboot i have a blinking caps lock after selecting an old kernel (and not the 4.2) it boots... ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: ubuntu-release-upgrader-core 1:15.10.6 ProcVersionSignature: Ubuntu 3.19.0-30.33-generic 3.19.8-ckt6 Uname: Linux 3.19.0-30-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.18.1-0ubuntu1 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: GNOME Date: Thu Sep 24 16:55:16 2015 InstallationDate: Installed on 2015-04-25 (152 days ago) InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader Symptom: release-upgrade UpgradeStatus: Upgraded to wily on 2015-09-24 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1499421/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
