On 02-Dec-01 Bruce Evans wrote:
> On Sat, 1 Dec 2001, John Baldwin wrote:
>
>> On 01-Dec-01 Dave wrote:
>> >
>> > I really have no clue what the kernel option:
>> > options USER_LDT
>> >
>> > means, except this rugged definition I found in LINT (paraphrase):
>> > "Allow applications running in user space to manipulate the Local
>> > Descriptor Table (LDT)"
>> >
>> > Since it didn't come in the GENERIC (FBSD 4.4 REL), I'm assuming that
>> > someone, somewhere, thought it would be a good idea to have this disabled
>> > by default and maybe it was meant to be added in only by people who know
>> > what they are doing.
>>
>> No, it's enabled by default, not disabled by default.
>
> Er, not in RELENG_4. It can only be enabled by default if it doesn't exist,
> as in -current :-).

Ah, nm, I misread it thinking that the option was gone from 4.4 completely. To
answer the original question then: it's not enabled by default most likely
because when it was added as a new feature it was left as an option that was
off by default so that any bugs it might have wouldn't bite people he didn't
need it.

> Bruce

-- 
John Baldwin <jhbFreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/
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