On 08/15/13 at 11:25am, Vivek Goyal wrote:
> On Thu, Aug 15, 2013 at 03:42:27PM +0800, WANG Chao wrote:
> > Now kdump.service runs "After" network.target. But network.target
> > doesn't mean network is setup and online. We should use
> > network-online.target instead for ssh/nfs dump.
> > And also because nfs dump requires a mounted nfs when rebuilding kdump
> > initrd, kdump.service should also run "After" remote-fs.target (this
> > means all remote fs configured in /etc/fstab is mounted).
> > 1. http://www.freedesktop.org/wiki/Software/systemd/NetworkTarget
> > Signed-off-by: WANG Chao <chaowang(a)redhat.com>
> I think this dependency might create some issues. What if kdump.conf is
> not dumping to an nfs/ssh target. What if there is a configuration issue
> and a network interface is not coming up. Does that mean kdump service
> will not run at all in that case?
Kdump will run, because kdump don't "Wants" or "Requires"
these service/target (ie, kdump won't pull in them if they're disabled).
"After" means if kdump will try to run after these services/target, but
if these services/target aren't enabled or pulled in by other service
("Requires" or "Wants"). Kdump service will simply ignore the
ones and run after the enabled ones.
So who is supposed to enable/disable network-online.target. And by default
is it enabled?