OK, I've tested this kernel, and it works just fine under Xen, from what I can tell. The system comes up just fine:
Linux octagon 4.15.0-23-generic #26~lp1777338Commit8eca6add0 SMP Wed Jun 27 15:50:08 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux The offending commit must be later. On Thu, Jul 5, 2018 at 8:32 AM, Joseph Salisbury <joseph.salisb...@canonical.com> wrote: > Here are the md5sum hashes of the files needed to install the test > kernel: > > d5f16dcf0080db1268d3b3477c911cd7 linux-image- > unsigned-4.15.0-23-generic_4.15.0-23.26~lp1777338Commit8eca6add0_amd64.deb > > 1d7504d8e691ba64d552a2d507179882 linux- > modules-4.15.0-23-generic_4.15.0-23.26~lp1777338Commit8eca6add0_amd64.deb > > b004fa6244e3e038b0d67c86e0218536 linux-modules- > extra-4.15.0-23-generic_4.15.0-23.26~lp1777338Commit8eca6add0_amd64.deb > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1777338 > > Title: > Linux 4.15.0-23 crashes during the boot process with a "Unable to > handle kernel NULL pointer dereference" message > > Status in linux package in Ubuntu: > In Progress > Status in linux source package in Bionic: > In Progress > > Bug description: > I went to boot my computer today and it wouldn't boot. > > I get an "Unable to handle kernel NULL pointer dereference" message > during the boot process, and, a bit after that, a message from the > kernel watchdog about CPU #0 being stuck. Then the boot process stops > completely. > > I was able to boot the system by telling Grub to load 4.15.0-22, which > works perfectly fine, so there has been a regression. > > I am running Ubuntu as a Xen dom0, if that matters. I haven't tried > booting the offending kernel version without Xen. > > I'm not sure where, if anywhere, these messages go on disk, for > posting. > > ProblemType: Bug > DistroRelease: Ubuntu 18.04 > Package: linux-image-4.15.0-23-generic 4.15.0-23.25 > ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 > Uname: Linux 4.15.0-22-generic x86_64 > NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair > ApportVersion: 2.20.9-0ubuntu7.1 > Architecture: amd64 > CurrentDesktop: ubuntu:GNOME > Date: Sun Jun 17 10:12:58 2018 > InstallationDate: Installed on 2017-08-06 (314 days ago) > InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) > ProcEnviron: > TERM=xterm-256color > PATH=(custom, no user) > XDG_RUNTIME_DIR=<set> > LANG=en_US.UTF-8 > SHELL=/bin/bash > SourcePackage: linux-signed > UpgradeStatus: Upgraded to bionic on 2018-05-29 (19 days ago) > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1777338/+subscriptions -- 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/1777338 Title: Linux 4.15.0-23 crashes during the boot process with a "Unable to handle kernel NULL pointer dereference" message Status in linux package in Ubuntu: In Progress Status in linux source package in Bionic: In Progress Bug description: I went to boot my computer today and it wouldn't boot. I get an "Unable to handle kernel NULL pointer dereference" message during the boot process, and, a bit after that, a message from the kernel watchdog about CPU #0 being stuck. Then the boot process stops completely. I was able to boot the system by telling Grub to load 4.15.0-22, which works perfectly fine, so there has been a regression. I am running Ubuntu as a Xen dom0, if that matters. I haven't tried booting the offending kernel version without Xen. I'm not sure where, if anywhere, these messages go on disk, for posting. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-23-generic 4.15.0-23.25 ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 Uname: Linux 4.15.0-22-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.9-0ubuntu7.1 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Jun 17 10:12:58 2018 InstallationDate: Installed on 2017-08-06 (314 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux-signed UpgradeStatus: Upgraded to bionic on 2018-05-29 (19 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1777338/+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