[libvirt] [PATCH 1/3] virSystemdCreateMachine: Set dependencies for slices
Cole Robinson
crobinso at redhat.com
Mon Feb 24 13:45:26 UTC 2014
On 02/21/2014 07:32 AM, Michal Privoznik wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=1031696
>
> When creating a new domain, we let systemd know about it by calling
> CreateMachine() function via dbus. Systemd then creates a scope and
> places domain into it. However, later when the host is shutting
> down, systemd computes the shutdown order to see what processes can
> be shut down in parallel. And since we were not setting
> dependencies at all, the slices (and thus domains) were most likely
> killed before libvirt-guests.service. So user domains that had to
> be saved, shut off, whatever were in fact killed. This problem can
> be solved by letting systemd know that scopes we're creating must
> not be killed before libvirt-guests.service.
>
> Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
> ---
> src/util/virsystemd.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/src/util/virsystemd.c b/src/util/virsystemd.c
> index 503fff7..9247c92 100644
> --- a/src/util/virsystemd.c
> +++ b/src/util/virsystemd.c
> @@ -243,8 +243,10 @@ int virSystemdCreateMachine(const char *name,
> iscontainer ? "container" : "vm",
> (unsigned int)pidleader,
> rootdir ? rootdir : "",
> - 1, "Slice", "s",
> - slicename) < 0)
> + 3,
> + "Slice", "s", slicename,
> + "After", "as", 1, "libvirtd.service",
> + "Before", "as", 1, "libvirt-guests.service") < 0)
> goto cleanup;
>
> ret = 0;
>
Ahh, so this does indeed work all along and I just messed up the gvariant :/
ACK
- Cole
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