I get the same on my 16.04 test server. However, things seems to work fine, if I allocate enough memory, on my test 18.04 server VM (which runs on the aforementioned 16.04 test server).
My real purpose here is to update the Ubuntu serverguide to deal with bug 1769130. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1794230 Title: failed to load kdump kernel Status in kexec-tools package in Ubuntu: Confirmed Bug description: Steps: 1) In VMWare ESXi create VM with OS Ubuntu 18.04.1 LTS. 2) In Ubuntu compiled and installed Xen 4.11.1~pre.20180911.5acdd26fdc+dfsg-1~exp1 3) Next installed kexec-tools 2.0.16 and kdump-tools 1.6.3-2 4) In /etc/default/grub.d/kdump-tools.cfg change crashkernel value to 512M 5) update-grub 6) reboot After reboot i try check status: sudo service kdump-tools status And get: ● kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled) Active: active (exited) since Tue 2018-09-25 05:06:10 UTC; 34s ago Process: 1046 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS) Main PID: 1046 (code=exited, status=0/SUCCESS) сен 25 05:06:09 ptms-all-qa7 systemd[1]: Starting Kernel crash dump capture service... сен 25 05:06:09 ptms-all-qa7 kdump-tools[1046]: Starting kdump-tools: * Creating symlink /var/lib/kdump/vmlinuz сен 25 05:06:09 ptms-all-qa7 kdump-tools[1046]: * Creating symlink /var/lib/kdump/initrd.img сен 25 05:06:09 ptms-all-qa7 kdump-tools[1046]: Memory for crashkernel is not reserved сен 25 05:06:09 ptms-all-qa7 kdump-tools[1046]: Please reserve memory by passing"crashkernel=X@Y" parameter to kernel сен 25 05:06:09 ptms-all-qa7 kdump-tools[1046]: Then try to loading kdump kernel сен 25 05:06:09 ptms-all-qa7 kdump-tools[1046]: * failed to load kdump kernel сен 25 05:06:10 ptms-all-qa7 kdump-tools[1347]: failed to load kdump kernel сен 25 05:06:10 ptms-all-qa7 systemd[1]: Started Kernel crash dump capture service. Log says "Memory for crashkernel is not reserved", but if run: sudo cat /proc/iomem | grep Crash I get: 18000000-37ffffff : Crash kernel What to do? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1794230/+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
