Re: [Xen-devel] [RFC] removing proc-xen.mount due to systemd change

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Mon, Oct 02, 2017 at 12:26:24PM +0200, Vasilis Liaskovitis wrote:
> Apologies for formatting. Here is my question in plain text:
> 
> There are systemd services that check for dom0 detection before xenfs
> gets mounted by proc-xen.mount. See this systemd bug report for an
> example:
> https://github.com/systemd/systemd/issues/6442
> 
> Upstream systemd has accepted the patch for this: https://github.com/sy
> stemd/systemd/pull/6662,
> which mounts xenfs at systemd init time i.e. making /proc/xen an API
> file.
> 
> However the issue now is that proc-xen.mount will refuse to mount
> /proc/xen as it an API file system, and the service will fail. This
> breaks xen, as other services depending on proc-xen.mount also
> fail.
> 
> What is the preferred way to deal with this in xen?
> 
> - We can remove proc-xen.mount completely, for systems using systemd.
> 

That would break Xen system using an older version of systemd, right?
I'm against such action.

> - any other options?

Can we just make the unit not fail? I.e. when it detects xenfs is
already mounted, it does nothing but reports success.

> 
> thank you,
> 
> - Vasilis
> 
> 
> On Mon, 2017-10-02 at 11:21 +0200, Vasilis Liaskovitis wrote:
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxx
> > https://lists.xen.org/xen-devel
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> https://lists.xen.org/xen-devel

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