Re: [ANNOUNCE] udev 0.1 release

[Greg KH <greg@kroah.com>]

On Fri, Apr 11, 2003 at 04:23:38PM -0700, Andrew Morton wrote:
> > 
> > But how many events to we buffer?
> 
> On a large machine: 856,432.

Heh.

> > When do we start to throw them away?
> > Fun policy decisions that we don't have to worry about in the current
> > scheme.
> 
> The current scheme will run out of processes, kernel stacks, etc before a
> message scheme would.
> 
> > Also, what's the format of the kernel->user interface.
> 
> Exactly the same as at present, with /sbin/hotplug chopped off.  So you can
> run the daemon:
> 
> 	while read x
> 	do
> 		/sbin/hotplug $x
> 	done < /dev/hotplug_event_pipe
> 
> for compatibility with existing scripts.

But the current interface is a single argument, and whole lot of
variable length environment variables that may or may not be set,
depending on the argument.  That would be a mess to parse from a single
stream (not undoable, but painful).

thanks,

greg k-h