[pkg-dhcp-devel] Bug#749410: isc-dhcp-client: shutdown/reboot hangs after K03rsyslog

[Elimar Riesebieter]

* Scott Ashcroft <scott.ashcroft at talk21.com> [2014-07-15 16:30 +0100]:

> 
> 
> Hi,
> 

> I think the problem is that dhcp client is being killed off by
> /etc/init.d/sendsigs script.

Hmm, yes.

> This means that it is dead by the time the nfs unmount script runs
> and that's why there is no network.  I suspect that it should be
> making a symlink in /run/sendsigs.omit.d like rpcbind, syslog and
> statd which will stop it being killed.  

isc-dhcp-client 4.2.4-7 does not but works flawlessly....


> However, that's going to be tricky as the
> dhcp client isn't explicitly started by an init script by as part
> of ifupdown or network manager.  I wonder how other distros handle
> this or what would happen if systemd was in use and not sysvinit.

This can be done by a script in /etc/network/if-up.d. I suspect
this is not a solid solution as this should be handeld by the
dhcp-client itself.

> Should be easy to confirm this by adding adding a couple of 'ps
> -ef' lines into the sendsigs script. i.e..

Not needed as we know that there is no network at umounting time by
my previous patch, though.


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