On Fri, Apr 20, 2012 at 12:57:29PM +0300, Teodor MICU wrote: > 2012/4/20 Michael Vogt <m...@debian.org>: > > Thanks for your bugreport. I fixed that now. I guess in your case it > > was already the session-leader for some reason (maybe because of > > systemd?). > > Yes, I use «systemd» but I don't know what being session-leader means. > Most times u-a is run automatically by Cron, only when I check or > debug some problem its run from a tty/pts console. > > Just for my curiosity, can you shortly explain what problem does > os.setsid() fix or avoid?
Sure, the setsid() call makes the process a session leader and removes the controlling tty. The rational is that if you run unattended-upgrades in a shell and then shutdown your tty goes away and unattended-upgrades gets killed even if its in the middle of a operation (like a upgrade). The unattended-upgrades-shutdown script is there to avoid that and keep the system running long enough to finish the upgrade - but for that unattended-upgrades must not be terminated by the tty going away. Cheers, Michael -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
