Testing multiple kexecs usually requires either using two machines (one
triggering ssh commands to the other, which will kexec) or if in one
machine only, cron scripts could be used. The latter approach was the
choice here to validate this Launchpad, by adding the following entry in
crontab:

"@reboot /bin/bash /root/kexec.sh"

The attached "kexec.sh" will perform kexecs until ${KLIMIT} is reached,
value which is accounted in the file "/root/kexec_cnt" (as a single
number) in our example.


** Attachment added: "kexec.sh"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869948/+attachment/5344444/+files/kexec.sh

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https://bugs.launchpad.net/bugs/1869948

Title:
  Multiple Kexec in AWS Nitro instances fail

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