From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roy Marples <uberlord@gentoo.org>
Date: Wed, 18 Jan 2006 09:28:31 +0000
Subject: Re: Cold plug starting services too soon
Message-Id: <200601180928.34889.uberlord@gentoo.org>
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References: <20060117203244.GA3135@kroah.com>
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To: linux-hotplug@vger.kernel.org

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On Wednesday 18 January 2006 00:27, Greg KH wrote:
> On Tue, Jan 17, 2006 at 09:43:03PM +0100, Kay Sievers wrote:
> > All running events are exported in /dev/.udev/queue/, events that fail
> > will be moved to /dev/.udev/failed/. Make sure the script return non-ze=
ro
> > if it can't run and retry all failed events from /dev/.udev/failed/
> > after "localfs" is done. If the same event then runs successfully, it
> > will go away from /dev/.udev/failed/. On SUSE I have a second udev boot
> > script that is called /etc/init.d/boot.udev_retry.
>
> Cool, I'll try doing that for Gentoo and see how it works out.  Thanks
> for adding this to udev already.
>
> Roy, do you think this will work out properly?

Yes, this can work out nicely. However, I don't see /dev/.udev/failed when =
we=20
exit with code 1. Is there something I'm missing?

Currently I have this fairly near the top of runscript.sh

# Ensure that we have completed sysinit
if [[ ${IN_HOTPLUG} =3D=3D 1 ]] ; then
    for pid in $(pidof bash) ; do
        if [[ "$(cat "/proc/${pid}/cmdline" 2>/dev/null)" \
            =3D=3D "/bin/bash/sbin/rcsysinit" ]] ; then
            eerror "ERROR:  cannot hotplug ${myservice} until sysinit has=20
run."
            exit 1
        fi
    done
    unset pid
fi

Now thats very hacky, but the only way I can think of to find out if our rc=
=20
system has completed its sysinit. A better solution would be this

# Ensure that we have completed sysinit
if [[ ${RC_SYSINIT} =3D=3D 1 ]] ; then
   eerror "ERROR:  cannot run ${myservice} until sysinit has completed."
   exit 1
fi

Obviously this only works if rc can configure udev to export shell variable=
s=20
before triggerring hotplugable events and can change/unset/add it after=20
sysinit. Something like this maybe.

udev_set_env "RC_SYSINIT=3D1"

do stuff to complete sysinit

udev_sev_env "RC_SYSINIT=3D"

Can we do this Greg?

=2D-=20
Roy Marples <uberlord@gentoo.org>
Gentoo Linux Developer

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