Re: Daemons and deboostrap

[Claudius Heine <ch@denx.de>]

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Hi,

On Wed, 2018-05-30 at 19:30 +0200, Jan Kiszka wrote:
> On 2018-05-27 21:30, Alexander Smirnov wrote:
> > On 05/27/2018 07:00 PM, Alexander Smirnov wrote:
> > > Hi all,
> > > 
> > > testing patches from mailing list I've found the problem with the
> > > current next: there are lots of daemons remain running after
> > > build is
> > > complete (./scripts/ci_build.sh -q).
> > > 
> > > 8<--
> > > 
> > > $ ps ax
> > > ...
> > > 24785 ?        Ssl    0:00 /usr/bin/qemu-arm-static
> > > /usr/sbin/sshd
> > > 25085 ?        Ssl    0:00 /usr/bin/qemu-arm-static
> > > /usr/bin/dbus-daemon --system
> > >   3046 ?        Ssl    0:00 /usr/bin/qemu-arm-static
> > > /usr/bin/dbus-daemon --system
> > >   4582 ?        Ss     0:00 /usr/bin/dbus-daemon --system
> > >   8577 ?        Ssl    0:00 /usr/bin/qemu-arm-static
> > > /usr/bin/dbus-daemon --system
> > > ...
> > > 
> > > 8<--
> > > 
> > 
> > CI server contains tens of dbus processes, so it's not the issue of
> > my
> > host.
> 
> Likely not noticed by us here as we usually build in containers, and
> they tear down those daemons once your build is done.

I normally don't exit the container after a build so it should be
happening there as well, but it didn't for me.
I might have to spend some time testing with different packages in
order to reproduce this, but I am pretty sure I tried installing
openssh before.

> That said, seems reasonable to restore some daemon startup prevention
> then, maybe now with clearer comments why that is needed - I vaguely
> recall an internal discussion where the reasons for the existence of
> that measures remain open.

Since installing debian via chroot and debootstrap is one of the
official supported ways of doing it, I would suspect that starting
daemons within that environment should be prevented upstream.

Maybe take a look at how the debian-installer handles this?

Cheers,
Claudius

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