Public bug reported: Since more or less a month ago I experienced OS crashes when clicking any panel button (calendar, volume, battery, etc). Only the mouse pointer still moves, but the system becomes totally unresponsive so I have to force power-off. I checked my syslog and the message before the power-off was:
Jan 16 14:13:07 jeco-pc kernel: [18048.538695] unity-panel-ser[1871]: segfault at 1ac32 ip 0000000000406ea9 sp 00007ffeedafe0a0 error 4 in unity-panel-service[400000+12000]. I thought it was a similar issue as reported in https://askubuntu.com/questions/992571/gui-unity-crashing-in-16-04-lts- after-updates-2018-01-04-compiz-segfaults. So I followed instructions and installed libgl1-mesa-dri from xenial-proposed. After that, the system worked well for a few days and then again presented the same problem. I checked my syslog again and the message was: Jan 17 09:38:12 jeco-pc kernel: [ 2911.154812] traps: unity-panel- ser[1994] general protection ip:406ea9 sp:7ffc881ee780 error:0 in unity- panel-service[400000+12000]. Following instructions posted in the question #663175 in launchpad, I ran an apt-get dist-upgrade. After that, the system worked well for one day. But now, the problem returned with the log: Jan 31 15:56:19 jeco-pc kernel: [ 3005.862110] unity-panel-ser[2200]: segfault at 61 ip 0000000000406ea0 sp 00007ffce922d1c0 error 4 in unity- panel-service[400000+12000] Again, any click on a panel button means a system crash and a forced power-off. More information can be found in https://pastebin.ubuntu.com/26488967/ ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: unity 7.4.0+16.04.20160906-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98 Uname: Linux 4.4.0-112-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Wed Jan 31 17:47:16 2018 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Haswell-ULT Integrated Graphics Controller [1028:0616] Subsystem: Dell GK208M [GeForce GT 740M] [1028:0616] InstallationDate: Installed on 2016-05-16 (624 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Dell Inc. Vostro 5470 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-112-generic.efi.signed root=UUID=75874219-4115-44d2-9a4b-c423e64f30ff ro quiet splash vt.handoff=7 SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/05/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 0K0PF0 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA12:bd11/05/2015:svnDellInc.:pnVostro5470:pvr:rvnDellInc.:rn0K0PF0:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Vostro 5470 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.83-1~16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.4-0ubuntu1~16.04.4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.4-0ubuntu1~16.04.4 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Wed Jan 31 15:58:20 2018 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 4156 vendor AUO xserver.version: 2:1.18.4-0ubuntu0.7 ** Affects: unity (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 ubuntu xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1746590 Title: unity panel service error: system crashes/unresponsive on every panel buttons click To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1746590/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
