[CFT] modular kernel config
slackbie at gmail.com
Tue Feb 28 10:01:32 UTC 2012
2012/2/28 Steve Wills <swills at freebsd.org>:
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> 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).
> 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.
Definitely yes, I'd some problems too with FLOWTABLE running for router.
So I have to disabled in kernel and sysctl.
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