Re: alternate event logging proposal

Brad Hards
2002-09-24T23:38:51Z

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Wed, 25 Sep 2002 09:31, Jeff Garzik wrote:
> Brad Hards wrote:
> > I liked the /sbin/hotplug arrangement (aka call_usermode_helper). In
> > fact, my plan was to add the call_usermode_helper call to the
> > netif_carrier_[on,off] functions. Unfortuantely, I've been to too many of
> > Rusty's talks, and know that calling a function that is only safe in user
> > context is unlikely to be a good idea in netif_carrier_[on,off], which
> > are more than likely running in interrupt context.
>
> You really want something where a userspace app can sleep on an fd, to
> be awakened when link changes (or some other interesting event occurs)
Maybe - I've been thinking of a "hotplug" daemon, that can take notifications
from the kernel _and_ from other userspace apps. The integrated solution
somehow needs to incorporate device hotplugging (eg USB, PCI), network device
events (netlink), userspace reconfiguration (eg X colour depth and
resolution) and maybe network infrastructure (external to the machine,
probably SLPv2 or similar), and reconfigure kernel and applications to match.

Brad
- --
http://conf.linux.org.au. 22-25Jan2003. Perth, Aust. Tickets booked.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org

iD4DBQE9kPcwW6pHgIdAuOMRAoaDAJ9PnK962eJCuKdobU64SfY/2SRemQCYxSUS
CfTiTN9hOq+gfldzcgDzCQ==
=bDjx
-----END PGP SIGNATURE-----