Matthew Dillon wrote:
> :> I'm just going to use this opportunity to plug the concept of temporary
> :> sysctl-instrumentation for a commit like this.
> :Overall, this is a good idea. However, it can't apply to
> :any code that runs before init_main.c runs the SI_SUB_TUNABLES.
> Sure it does, because it means you can simply commit a change to the
> default assignment for that sysctl rather then backing the whole thing
> out to unbreak the general developer community. That saves a lot of
> time and removes the 'oh hell, I have to track this down quickly!'
> Sometimes features in early boot can be adjusted by breaking into DDB
> and w/l changing the sysctl variable, but perhaps not in this case.
Definitely not in this case. Similarly, there are a
number of early allocations that occur by declaration,
rather than by process, where the page mappings are
then established post-facto, where it won't work.
I really need to publish my "early life of FreeBSD"
article. 8-(. I have all my extensive notes together,
but I think it's at least a three-parter, and I need to
expand the examples. I'll get around to it eventually,
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