Re: [Xen-devel] [XTF PATCH] xtf-runner: fix two synchronisation issues

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 29/07/16 15:21, Ian Jackson wrote:
> Wei Liu writes ("[XTF PATCH] xtf-runner: fix two synchronisation issues"):
>> There were two synchronisation issues for the old code:
>>
>> 1. There was no guarantee that guest console was ready before "xl
>>    console" invocation.
> Is this not a bug in xl console ?
>
>> 2. Poll xenstore guest console node to make sure console is available
>>    before "xl console" invocation.
> Users of things like xl shouldn't need to prat about in xenstore too.

Ideally, what xtf-runner wants is for `xl create -c $FOO.cfg` to work as
one would logically intend, but it doesn't.  It does a create, then
falls into the weeds trying to locate the console for a domain which has
already exited.

As a workaround, xtf-runner currently does

`xl create -p $foo.cfg`
`xl console $test &`
`xl unpause $text`
wait on xl console to complete.

but it turns out that this even isn't good enough.

xl should definitely be fixed, but xtf-runner needs to be able to cope
with older broken xl as well.

~Andrew

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