Rob Landley wrote:

>Or long lived kernel threads from short lived login sessions.
>
>You have a headless gateway box for your local subnet, administered via ssh 
>from a machine on the local subnet.  So you SSH into the box through eth1, 
>ifconfig eth0 down back up again.  If eth0 is an rtl8039too, this fires off a 
>kernel thread (which, before reparent_to_init, was parented to your ssh login 
>session).
>
>Now exit the login session.  SSH does not exit until all the child processes 
>exit, so it just hangs there until you kill it from another console window...
>
>Rob
>
The question one can ask is what should a thread do then?
Should reparent_to_init() send a SIGCHLD to the process/task
that was parent before init became the parent? this should be easy
to do, but will this fix the problem? I think so.

I can patch up something soon, if somebody is willing to test it.

comments,
Balbir