Parallel enables occurring (when SIM PIN enabled)

[Aleksander Morgado]

On Tue, Apr 25, 2017 at 4:43 PM, Dan Williams <dcbw at redhat.com> wrote:
>> > I've encountered a problem when using MM with Network Manager, when
>> > the SIM PIN is enabled - in short it seems that MM is able to hit a
>> > state where two 'enable' operations are happening in parallel, one
>> > from unlocking the SIM and one from starting the 'simple connect'.
>> > The detail and discussion so far has been over at http://www.mail-a
>> > rchive.com/networkmanager-list at gnome.org/msg27008.html , but it
>> > does seem to be an issue that essentially lies in MM.
>>
>> Could you open a new bugreport in bugzilla and attach the relevant
>> logs there as well? I believe we should track this.
>> https://bugs.freedesktop.org/enter_bug.cgi?product=ModemManager
>
> He originated this thread on the NM list (not sure if you saw it there)
> and I diagnosed what was going on from an internal perspective.  It's a
> race between the state change to ENABLING and the polkit auth stuff.
> We need to check right after the polkit auth that our state hasn't
> changed already due to another request, and then do the right thing
> (either return an error or allow the specific op to proceed).

May have missed the email in the NM list. I saw the patch attached to
the bugreport now, and my only concern was related to why a final
state > ENABLED (e.g. registered or connected) would be treated as an
error during the Enable() request.

-- 
Aleksander
https://aleksander.es