Re: [PATCH] libvirt-guests.sh: fix log output with new systemd

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On Thu, Apr 30, 2020 at 5:10 PM Daniel P. Berrangé <berrange@xxxxxxxxxx> wrote:
>
> On Thu, Apr 30, 2020 at 04:58:25PM +0200, Christian Ehrhardt wrote:
> > On Thu, Apr 30, 2020 at 2:51 PM Daniel P. Berrangé <berrange@xxxxxxxxxx> wrote:
> > Well it seems I have a reproducible symptom and a fix, but not the
> > explanation why the latter fixes the former.
> > I'll need to dive into some debug & analysis myself to explain it better.
> > I'll be back here once I got time to do that in depth check.
> >
> > Until then whoever is affected (should be everyone) can give it a
> > thought as well.
> > Repro is as easy as
> > One console:
> > $ journalctl -f -u libvirt-guests
> > Other console:
> > $ systemctl stop libvirt-guests
> > $ systemctl start libvirt-guests
> >
> > I see it with 245.4-4ubuntu3 (18.04) I'm not seeing it on
> > 237-3ubuntu10.39 (20.04).
> > Maybe it is a systemd bug after all?
> > I'd be interested to hear if that is/isn't clobbering output for
> > anyone else and what your systemd versions are?
>
> FWIW, it works correctly on Fedora 31 with systemd 243.

Eoan with 242-7ubuntu3.7 is good as well.
I might need to try to get some interim versions from somewhere.

>
> Apr 30 16:07:27 localhost.localdomain systemd[1]: Starting Suspend/Resume Running libvirt Guests...
> Apr 30 16:07:27 localhost.localdomain systemd[1]: Started Suspend/Resume Running libvirt Guests.
> Apr 30 16:08:33 localhost.localdomain systemd[1]: Stopping Suspend/Resume Running libvirt Guests...
> Apr 30 16:08:33 localhost.localdomain libvirt-guests.sh[2192485]: Running guests on default URI: memtest, memtest1
> Apr 30 16:08:33 localhost.localdomain libvirt-guests.sh[2192485]: Suspending guests on default URI...
> Apr 30 16:08:33 localhost.localdomain libvirt-guests.sh[2192485]: Suspending memtest: ...
> Apr 30 16:08:34 localhost.localdomain libvirt-guests.sh[2192485]: Suspending memtest: done
> Apr 30 16:08:34 localhost.localdomain libvirt-guests.sh[2192485]: Suspending memtest1: ...
> Apr 30 16:08:35 localhost.localdomain libvirt-guests.sh[2192485]: Suspending memtest1: done
> Apr 30 16:08:35 localhost.localdomain systemd[1]: libvirt-guests.service: Succeeded.
> Apr 30 16:08:35 localhost.localdomain systemd[1]: Stopped Suspend/Resume Running libvirt Guests.
>
> I'll see if I can do a test with newer systemd too
>
>
> Regards,
> Daniel
> --
> |: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
> |: https://libvirt.org         -o-            https://fstop138.berrange.com :|
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>


-- 
Christian Ehrhardt
Staff Engineer, Ubuntu Server
Canonical Ltd






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