Installed SLE15 SP2 kernel on Leap 15.0 and rebooting does not work after kdump
capture. The readmem warning is expected - the makedumpfile is too old.
However, rebooting should work.

-------------------------------------------------------------------------------
The kernel version is not supported.
The makedumpfile operation may be incomplete.

The dmesg log is saved to /kdump/mnt1/var/crash/2019-11-01-17:17/dmesg.txt.

makedumpfile Completed.
-------------------------------------------------------------------------------
Saving dump using makedumpfile
-------------------------------------------------------------------------------
The kernel version is not supported.
The makedumpfile operation may be incomplete.
Excluding unnecessary pages                       : [ 15.0 %] \                
 __vtop4_x86_64: Can't get a valid pmd_pte.
readmem: Can't convert a virtual address(ffffdabd02000000) to physical address.
readmem: type_addr: 0, addr:ffffdabd02000000, size:32768
__exclude_unnecessary_pages: Can't read the buffer of struct page.
create_2nd_bitmap: Can't exclude unnecessary pages.

makedumpfile Failed.
Running makedumpfile  -d 31 -c /proc/vmcore failed (1).
Saving makedumpfile-R.pl       Finished.                                       
Generating rearrange script    Finished.                                       
Generating README              Finished.                                       
Copying System.map             Finished.                                       
Copying kernel                 Finished.                                       
Last command failed (1).
umount: /kdump/mnt0: not mounted.
umount: /kdump/mnt1/var: not mounted.
umount: /sys/fs/cgroup/unified: target is busy.
umount: /sys/fs/cgroup: target is busy.
umount: /run: target is busy.
umount: /dev: target is busy.
umount: /: not mounted.
Rebooting.
[    5.251060] Unregister pv shared memory for cpu 0
[    5.845148] scsi 0:0:0:0: CD-ROM            QEMU     QEMU CD-ROM      2.5+
PQ: 0 ANSI: 5
[    5.849497] scsi target0:0:0: tagged command queuing enabled, command queue
depth 16.