ubuntu-phone team mailing list archive

[Dimitri John Ledkov <xnox@xxxxxxxxxx>]

On 27 February 2014 18:43, Michał Sawicz <michal.sawicz@xxxxxxxxxxxxx> wrote:
> On 27.02.2014 18:48, Didier Roche wrote:
>>
>> 3. Screen unlock often not working during the tests (Kgunn)
>> Seems that more investigation pointed on Mir direction:
>> https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1285215
>
>
> FWIW the underlying issue are the above unity8 crashes - the socket is not
> cleared like on proper exit, so prevents the next unity8 run.
>
> Before the proper Mir fix, we could delete the socket in unity8's pre-start
> to improve the situation temporarily.
>

File socket should not be used at all, as they are known to be racy
and can easily end up stale, instead an abstract unix domain socket
should be used throughout.

This is not the first time, where stale, and not properly cleared file
sockets in mir are causing severe breakage on touch.

With an abstract socket, there is no file on a filesystem, and thus
when a process is gone the socket is also gone. You can see examples
of abstract sockets in: upstart, dbus-daemon, and plenty of other
system level daemons on ubuntu.

-- 
Regards,

Dimitri.