[CFT] modular kernel config

Arnaud Lacombe lacombar at gmail.com
Tue Feb 28 19:13:34 UTC 2012


2012/2/27 Steve Wills <swills at freebsd.org>:
> Hash: SHA1
> On 02/27/12 10:53, Łukasz Wąsikowski wrote:
>> W dniu 2012-02-22 23:31, Bjoern A. Zeeb pisze:
>>> You cannot ship that on by default for non-tecnical reasons in a
>>> kernel.  Please do not commit a kernel config that can be booted
>>> (no LINT cannot be booted) with these on without consulting
>>> appropriate hats upfront.
>>>> - ALTQ - SW_WATCHDOG - QUOTA - IPSTEALTH (disabled in
>>>> loader.conf) - IPFIREWALL_FORWARD (touches every packet, power
>>>> users which need a bigger PPS but not this feature can
>>>> recompile the kernel, discussed with julian@) - FLOWTABLE
>>>> (disabled in loader.conf)
>>> Which is not the same as it's not 100% disabled and will still
>>> allocate memory.
>> FLOWTABLE on 8.x crashed BGP routers (kern/144917). I don't know if
>> it is fixed by now, but this kind of potential problematic features
>> should not be enabled by default.
> Agree, I've run into problems with FLOWTABLE (with just the features
> that were enabled by default in 8.0) when routers changed MAC
> addresses. As far as I understand it, FLOWTABLE is both broken and
> abandoned (but if I'm wrong, please let me know).
You will sure go really far with this kind of "It is broken ? Let's
not fix it and disable it instead" mentality, even more when coming
from a committer.

As long as there will be these kind of comments around here, FreeBSD
will deserve nothing but to keep dying piece by piece, and it will be

 - Arnaud

> So, IMHO, not only should it not be enabled by default, but given that
> it was disabled complete in 8.x after 8.0 (too lazy to look at exactly
> when right now), I think it shouldn't even be included, since that
> might encourage users to try it out only to encounter problems with it.
> Steve
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