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Re: [RFC PATCH] tests/avocado: apply a band aid to aspeed-evb login
From: |
Alex Bennée |
Subject: |
Re: [RFC PATCH] tests/avocado: apply a band aid to aspeed-evb login |
Date: |
Thu, 11 Aug 2022 15:30:47 +0100 |
User-agent: |
mu4e 1.8.8; emacs 28.1.91 |
John Snow <jsnow@redhat.com> writes:
> On Thu, Aug 11, 2022 at 7:43 AM Alex Bennée <alex.bennee@linaro.org> wrote:
>>
>> This is really a limitation of the underlying console code which
>> doesn't allow us to detect the login: and following "#" prompts
>> because it reads input line wise. By adding a small delay we ensure
>> that the login prompt has appeared so we don't accidentally spaff the
>> shell commands to a confused getty in the guest.
>>
>> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>> Cc: Cédric Le Goater <clg@kaod.org>
>> Cc: John Snow <jsnow@redhat.com>
>> ---
>> tests/avocado/machine_aspeed.py | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/tests/avocado/machine_aspeed.py
>> b/tests/avocado/machine_aspeed.py
>> index c54da0fd8f..65d38f4efa 100644
>> --- a/tests/avocado/machine_aspeed.py
>> +++ b/tests/avocado/machine_aspeed.py
>> @@ -101,7 +101,9 @@ def do_test_arm_aspeed_buidroot_start(self, image,
>> cpu_id):
>> self.wait_for_console_pattern('Starting kernel ...')
>> self.wait_for_console_pattern('Booting Linux on physical CPU ' +
>> cpu_id)
>> self.wait_for_console_pattern('lease of 10.0.2.15')
>> + # the line before login:
>> self.wait_for_console_pattern('Aspeed EVB')
>> + time.sleep(0.1)
>> exec_command(self, 'root')
>> time.sleep(0.1)
>>
>> --
>> 2.30.2
>>
>
> Augh. Sorry my hunch was wrong. I wasn't aware of this problem.
>
> Is ... this 0.1 second sleep really sufficient? I guess it's better
> than not having it, and I can't reasonably ask for something more
> thorough.
We could still do with fixing _console_interaction() so we can handle
waiting for prompts without newlines in them. I had a go but it just got
messy.
>
> Acked-by: John Snow <jsnow@redhat.com>
--
Alex Bennée