Public bug reported:
[Summary]
kdump-tools service does not start automatically at boot on Ubuntu 17.10
(4.13.0-12-generic x86_64 kernel). Because of this, the kernel crash dump is
not working.
[Steps]
- Tried enabling it using systemctl. No errors were shown after enabling it,
but after reboot the service is still not running.
- "kdump-config show" is reporting "current state: Not ready to kdump"
- "kdump-config load" command worked and the state changed to "ready to kdump".
kdump-tools service is still stopped but VM reboots (and a dump is generated)
if a crash is triggered.
- Starting the kdump-tools service is also ok. After it is started, a crash
dump is generated in case of system crash.
[Additional logs]
root@ubuntu1710:~# service kdump-tools status
● kdump-tools.service - Kernel crash dump capture service
Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor
preset: ena
Active: inactive (dead)
root@ubuntu1710:~# dmesg | grep crashkernel
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.13.0-12-generic
root=/dev/mapper/ubuntu1710--vg-root ro console=tty0 console=ttyS1
crashkernel=384M
[ 0.000000] Reserving 384MB of memory at 400MB for crashkernel (System RAM:
2047MB)
root@ubuntu1710:~# cat /var/log/syslog | grep kexec
Oct 11 06:30:08 ubuntu1710 systemd[1]: Starting LSB: Execute the kexec -e
command to reboot system...
Oct 11 06:30:09 ubuntu1710 systemd[1]: Started LSB: Execute the kexec -e
command to reboot system.
Oct 11 06:30:10 ubuntu1710 systemd[1]: Starting LSB: Load kernel image with
kexec...
Oct 11 06:30:10 ubuntu1710 systemd[1]: Started LSB: Load kernel image with
kexec.
** Affects: makedumpfile (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1722806
Title:
[Hyper-V] kdump-tools service does not start at boot on Ubuntu 17.10
Status in makedumpfile package in Ubuntu:
New
Bug description:
[Summary]
kdump-tools service does not start automatically at boot on Ubuntu 17.10
(4.13.0-12-generic x86_64 kernel). Because of this, the kernel crash dump is
not working.
[Steps]
- Tried enabling it using systemctl. No errors were shown after enabling it,
but after reboot the service is still not running.
- "kdump-config show" is reporting "current state: Not ready to kdump"
- "kdump-config load" command worked and the state changed to "ready to
kdump". kdump-tools service is still stopped but VM reboots (and a dump is
generated) if a crash is triggered.
- Starting the kdump-tools service is also ok. After it is started, a crash
dump is generated in case of system crash.
[Additional logs]
root@ubuntu1710:~# service kdump-tools status
● kdump-tools.service - Kernel crash dump capture service
Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor
preset: ena
Active: inactive (dead)
root@ubuntu1710:~# dmesg | grep crashkernel
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.13.0-12-generic
root=/dev/mapper/ubuntu1710--vg-root ro console=tty0 console=ttyS1
crashkernel=384M
[ 0.000000] Reserving 384MB of memory at 400MB for crashkernel (System
RAM: 2047MB)
root@ubuntu1710:~# cat /var/log/syslog | grep kexec
Oct 11 06:30:08 ubuntu1710 systemd[1]: Starting LSB: Execute the kexec -e
command to reboot system...
Oct 11 06:30:09 ubuntu1710 systemd[1]: Started LSB: Execute the kexec -e
command to reboot system.
Oct 11 06:30:10 ubuntu1710 systemd[1]: Starting LSB: Load kernel image with
kexec...
Oct 11 06:30:10 ubuntu1710 systemd[1]: Started LSB: Load kernel image with
kexec.
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