[arch-dev-public] Module blacklisting
simo at archlinux.org
Sat Feb 23 07:18:35 EST 2008
On Sat, Feb 23, 2008 at 11:12:51AM +0100, Xavier wrote:
> On Fri, Feb 22, 2008 at 07:06:04PM -0600, Dan McGee wrote:
> > Aaron covered it most of the way, but I just wanted to make it clear
> > that every time you plug in a USB device or make any other hardware
> > chage, udev triggers. If I've added a blacklisted module since the
> > last time I booted (which may have been 50 days ago), then I want it
> > to not load, and any processing of udev-related stuff outside of the
> > udev framework would mean the module I added would not be blacklisted.
> I was also thinking about this. I am afraid Aaron's ideas #2 and #3 don't
> take care of that, since they build the blacklist in rc.sysinit, right?
> Do you suggest reverting to the previous load-modules.sh then, which built
> the blacklist every time? It doesn't sound very efficient, but how is it
> possible to get the behavior you are describing otherwise?
Hmmm... is it possible to implement some form of caching to solve this?
If load-modules.sh took a quick md5sum or the MODULES array every time
it runs, we could maintain current behavior, including blacklisting
modules on a running system, at little or no cost, and quite
transparently. This would at least make the dependency resolution only
occur when the MODULES array happens to change.
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