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List:       enlightenment-devel
Subject:    Re: [E-devel] [PATCH] systemd: change from simple e18 service to target
From:       thomasg <thomas () gstaedtner ! net>
Date:       2013-07-31 16:47:31
Message-ID: CABgBRiLEf8hTqz1G7Eq140TmvF-f=bsouvL76K1pmnDeC+=cuw () mail ! gmail ! com
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On Wed, Jul 31, 2013 at 5:13 AM, Cedric BAIL <cedric.bail@free.fr> wrote:
> Hello,
>
> On Tue, Jul 23, 2013 at 6:37 PM, thomasg <thomas@gstaedtner.net> wrote:
>> On Tue, Jul 23, 2013 at 2:31 PM, Leif Middelschulte
>> <leif.middelschulte@gmail.com> wrote:
>>> Hello everyone,
>>>
>>> If this lands, https://phab.enlightenment.org/w/e18_with_systemd_user_session/ should be updated.
>>
>> I will do that once it is in. I talked to Cedric already and am
>> waiting until he gets his systemd machine running again and tests it.
>> In the meantime, if you want to test it: There isn't actually much
>> changing, just ignore the "systemd-user-units" part of the article and
>> everything will be fine (in fact, the current howto isn't enough to
>> use it like described anyway, it is much more likely that you get the
>> new stuff working with it than the existing one :).
>> Other than that, simply use the documentation of sofar's
>> user-session-units and replace e17 by e18, it is fully compatible to
>> this and should work on any machine with systemd (not just arch).
>
> Ok, I finally got the time to try it. There is something weird after I
> apply your patch it doesn't seems to honor the KillMode=process
> anymore. Hum, in fact, I didn't try with the previous unit since I
> upgraded systemd, maybe that's an issue related to systemd (And my
> install is still quite not working as I need to manually do a
> 'systemctl start user-session@1000.service' even when the enable has
> been done).
>
>> Sidenote: There still is a bug with systemd's watchdog in E, so the
>> watchdog doesn't actually work, but that's not directly related to
>> this and happens with both approaches. I will have a look at this,
>> soon.
>
> I also quickly noted that the watchdog is indeed not working anymore.
> For what it is, by moving AllowIsolate in e18.service, the delay
> between restart of enlightenment seems to be quite higher, but not
> sure yet why. What was the reason of moving AllowIsolate in the
> .target ? Need some investigation on why this watchdog is not working
> anymore.
>
> I will investigate that in the evening if I get some time. If I get
> some time I will update the step needed to set it up with latest
> systemd on arch (should be working on any distribution with latest
> systemd).
>
> Regards,
>   Cedric

Please don't invest too much time, because there have been a few
developments in systemd that make it not worth your time.
Starting with systemd 205, systemd --user behavior has changed, and it
is not even slightly compatible with the behaviour until 204. So user
sessions as they were do not exist anymore.
I haven't looked much closer into it because systemd 206 has some bugs
that break my system and will be fixed in future releases, but when I
can safely upgrade from 204, I'll have a look at how to do things in
future, as the old behavior will not come back and all current
approaches are not supported anymore.

>>> Am Samstag, 20. Juli 2013 um 16:50 schrieb Thomas Gstädtner:
>>>> This has a few advantages over the current approach:
>>>> - only depends on user-session-units, not the flawed systemd-user-units
>>>> - allows isolating the target to switch between e.g. e17 and e18 at
>>>> runtime
>>>> - works much more reliably for me
>>>>
>>>> Important: please don't commit without review by Cedric!
>>>> ---
>>>> data/units/Makefile.am (http://Makefile.am) | 6 +++++-
>>>> data/units/e18.service | 9 +++------
>>>> data/units/e18.target | 6 ++++++
>>>> 3 files changed, 14 insertions(+), 7 deletions(-)
>>>> create mode 100644 data/units/e18.target
>>>>
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>>>>
>>>>
>>>>
>>>>
>>>> Anhänge:
>>>> - 0001-systemd-change-from-simple-e18-service-to-target.patch
>>>>
>>>
>>>
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>>
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>
>
>
> --
> Cedric BAIL
>
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