[LightDM] [systemd-devel] sd 221 regression: login - nonexistent sessions via lightdm

[poma]

On 08.07.2015 13:54, David Herrmann wrote:
> Hi
> 
> On Wed, Jul 8, 2015 at 1:29 PM, poma <pomidorabelisima at gmail.com> wrote:
>> Here is another case where this is still broken - LiveCD/DVD constellation.
>> Initial log-in should work, but subsequent ones sind kaputt aber glücklich.
>> So how to reproduce:
>> just log-out & log-in, again.
>>
>> Here is a visual record:
>> http://goo.gl/Gm4ffO
>> Screencast/catch-a-tiger-by-the-toe.webm
>>
>> and here is a test compilation, so you can test it yourself:
>> http://goo.gl/Gm4ffO
>> ISO/Rawhide-Live-Xfce-708.iso
> 
> I see. I assume the greeter is again started on the same VT as the
> leaving session. If the previous session now leaves stuff behind, we
> end up with the same issue. Does the attached patch fix this?
> 
> (This is getting a bit convoluted.. we should really fix this properly)
> 
> Thanks
> David
> 
> diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
> index 82654ee..91cc67d 100644
> --- a/src/login/logind-dbus.c
> +++ b/src/login/logind-dbus.c
> @@ -699,9 +699,12 @@ static int method_create_session(
>           * after the user-session and want the user-session to take
>           * over the VT. We need to support this for
>           * backwards-compatibility, so make sure we allow new sessions
> -         * on a VT that a greeter is running on.
> +         * on a VT that a greeter is running on. Furthermore, to allow
> +         * re-logins, we have to allow a greeter to take over a used VT for
> +         * the exact same reasons.
>           */
> -        if (vtnr > 0 &&
> +        if (class != SESSION_GREETER &&
> +            vtnr > 0 &&
>              vtnr < m->seat0->position_count &&
>              m->seat0->positions[vtnr] &&
>              m->seat0->positions[vtnr]->class != SESSION_GREETER)
> 


No land in sight
no seagull in the sky
no rum on board
are we gonna die