Comment 0 for bug 1841702

[Summary]
[0.49.0rc2] Checkbox stuck at poweroff/reboot-log-attach
[Steps to reproduce]

Checkbox stuck at poweroff/reboot-log-attach after resume from single Poweroff and reboot testing, Ctrl+C can not interrupt need to forced close terminal.

I can resume session and "mark it as faile" then checkbox can contiune without error message. "run it again" also stuck.

u@u-Inspiron-5594:~$ checkbox-cli --version
checkbox-ng: 1.5.0rc1
checkbox-support: 0.42.0rc1
com.canonical.ce:oem: 1.0
certification-client: 0.38.0rc1
plainbox-provider-checkbox: 0.49.0rc2
plainbox-provider-resource-generic: 0.41.0rc1
plainbox-provider-sru: 1.14.0rc1
plainbox-provider-tpm2: 1.11.0rc1

SKU: 201906-27141
LNC5-DVT2-C3

====test output===
u@u-Inspiron-5594:~$ checkbox-cli
=========================[ Resume Incomplete Session ]==========================
There is 1 incomplete session that might be resumed
Do you want to resume session 'checkbox-cli-2019-08-27T02.45.48'?
  r => resume this session
  n => next session
  c => create new session
  d => delete old sessions
[rncd]: r
Previous session run tried to execute job: com.canonical.certification::power-management/reboot-log-attach
What do you want to do with that job?
  s => skip that job
  p => mark it as passed and continue
  f => mark it as failed and continue
  r => run it again
[spfr]: r
Reports will be saved to: /home/u/.local/share/checkbox-ng
-------------[ Running job 1 / 102. Estimated time left: unknown ]--------------
---------------------[ power-management/reboot-log-attach ]---------------------
ID: com.canonical.certification::power-management/reboot-log-attach
Category: com.canonical.plainbox::power-management
... 8< -------------------------------------------------------------------------

[Additional information]
GPU: 00:02.0 VGA compatible controller: Intel Corporation Device 9b41 (rev 02)
kernel-version: 4.15.0-1042-oem
system-product-name: Inspiron 5594
Image: somerville-bionic-amd64-iso-hybrid-20180608-47
bios-version: 0.5.2
system-manufacturer: Dell Inc.
CPU: Intel(R) Core(TM) i5-10210U CPU @ 1.60GHz (8x)