test fails in hwsim_wpa2_enterprise_setup for ppc64le

as per autoinst log extract the y~OqG-$? expected string is not detected until timeout,
despite presence of the string in serial file.

=== extract autoinst
[2018-08-29T10:37:48.0933 UTC] [debug] <<< testapi::type_string(string=' ; echo y~OqG-$?- > /dev/hvc0
', max_interval=250, wait_screen_changes=0, wait_still_screen=0)
BYTES {"type_string":{"json_cmd_token":"qLiZULav","max_interval":250,"text":" ; echo y~OqG-$?- > /dev/hvc0\n"},"json_cmd_token":"sruWEkuq"}
[2018-08-29T10:37:52.0065 UTC] [debug] /var/lib/openqa/cache/openqa1-opensuse/tests/opensuse/tests/x11/network/hwsim_wpa2_enterprise_setup.pm:23 called testapi::assert_script_run
[2018-08-29T10:37:52.0065 UTC] [debug] <<< testapi::wait_serial(regexp=qr/(?^{:y~OqG-\d+-)/,} timeout=90)
BYTES {"json_cmd_token":"jcbrzdbJ","wait_serial":{"regexp":"(?^{:y~OqG-\d+-)","json_cmd_token":"VvMyvZTa","timeout":270}}}
BYTES {"last_screenshot_data":{"json_cmd_token":"ujCgdlpj"},"json_cmd_token":"RvnrCVqK"}
[2018-08-29T10:42:23.0349 UTC] [debug] >>> testapi::wait_serial: (?^{:y~OqG-\d+-):} fail
[2018-08-29T10:42:23.0350 UTC] [debug] # Test died: command 'modprobe mac80211_hwsim radios=2 |& tee /dev/hvc0' timed out at /var/lib/openqa/cache/openqa1-opensuse/tests/opensuse/tests/x11/network/hwsim_wpa2_enterprise_setup.pm line 23.
=== extract serial log
YpuUt-0-
systemd[1]: Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
systemd[1]: Starting Load/Save RF Kill Switch Status...
systemd[1]: Started Load/Save RF Kill Switch Status.
yÕqG-0-
systemd-udevd[19964]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
systemd-udevd[19962]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.

systemd-udevd[19966]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.¶

Observation¶

openQA test in scenario opensuse-Tumbleweed-DVD-ppc64le-extra_tests_on_gnome@ppc64le fails in
hwsim_wpa2_enterprise_setup

Reproducible¶

Fails since (at least) Build 20180813

Expected result¶

Last good: 20180810 (or more recent)

Further details¶

Always latest result in this scenario: latest