That is correct. Ubuntu starts with the mainline kernel and adds patches on top. From your testing, it appears the bug may have been introduce by an Ubuntu SAUCE patch, since you cannot reproduce it with any of the upstream kernels.
We should figure out which Ubuntu kernel version introduced the bug. We can then perform a kernel bisect to identify the exact patch that caused this. The call trace looks similar to what is happening in bug 1734327. Can you see if the bug you are seeing happens with the test kernel I built for that bug: http://kernel.ubuntu.com/~jsalisbury/lp1731031/ -- 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/1731031 Title: Kernel Oops with 17.10 Status in linux package in Ubuntu: In Progress Status in linux source package in Artful: In Progress Bug description: have captured dmesg just before oops ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: xorg 1:7.7+19ubuntu3 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: KDE Date: Wed Nov 8 20:41:14 2017 DistUpgraded: 2017-11-07 01:49:14,657 DEBUG icon theme changed, re-reading DistroCodename: artful DistroVariant: kubuntu DkmsStatus: bcmwl, 6.30.223.271+bdcom, 4.10.0-38-generic, x86_64: installed bcmwl, 6.30.223.271+bdcom, 4.13.0-16-generic, x86_64: installed GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a2e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Apple Inc. Haswell-ULT Integrated Graphics Controller [106b:011a] LightdmGreeterLogOld: ** (lightdm-gtk-greeter:1762): WARNING **: Failed to load user image: Failed to open file '/home/hmeyer/.face': No such file or directory MachineType: Apple Inc. MacBookPro11,1 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=fbc61d79-8b51-4801-8e2b-175ff6daa14f ro quiet splash apparmor=0 vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to artful on 2017-11-07 (1 days ago) dmi.bios.date: 02/22/2016 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP111.88Z.0138.B17.1602221718 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-189A3D4F975D5FFC dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro11,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-189A3D4F975D5FFC dmi.modalias: dmi:bvnAppleInc.:bvrMBP111.88Z.0138.B17.1602221718:bd02/22/2016:svnAppleInc.:pnMacBookPro11,1:pvr1.0:rvnAppleInc.:rnMac-189A3D4F975D5FFC:rvrMacBookPro11,1:cvnAppleInc.:ct10:cvrMac-189A3D4F975D5FFC: dmi.product.family: Mac dmi.product.name: MacBookPro11,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.83-1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.2-0ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.2-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 xserver.bootTime: Wed Nov 8 20:39:06 2017 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.19.5-0ubuntu2 xserver.video_driver: modeset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1731031/+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
