Linus Torvalds wrote:
I thought more people knew about all this. Forcing (or even just
encouraging) people to use loadable modules is just horrible. I personally
run a kernel with no modules at all: it makes for a simpler bootup, and in
some situations (embedded) it has both security and size advantages.
Linus,
I'm glad you said that and I have to second that opinion.
On our current product, we compile everything we need into the kernel; we don't use Alsa as modules at all. Our system is "embedded" as far as the user is concerned (though in many ways is just a general purpose computer running a custom stripped down distribution), and the monolithic kernel is critical to our boot speed (under 1 minute till all services are running) and filesystem size.
In addition, it makes maintenance and porting much easier: Step 1 - reconfigure and recompile the kernel; Step 2 - put bzImage in our update tarball. Easy. I can't imagine what a pain it would be to have to "install" the modules in our filesystem image.
Thankfully, we've never had to deal with this sort of failure; all of our Alsa drivers and services have been well behaved (mostly).
- Steve
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