svn commit: r242847 - in head/sys: i386/include kern

[Peter Wemm]

On Sat, Nov 10, 2012 at 9:51 AM, Garrett Cooper <yanegomi at gmail.com> wrote:
> On Sat, Nov 10, 2012 at 9:45 AM, Peter Wemm <peter at wemm.org> wrote:
>>
>> On Sat, Nov 10, 2012 at 9:33 AM, Eitan Adler <eadler at freebsd.org> wrote:
>> > On 10 November 2012 12:04, Alfred Perlstein <bright at mu.org> wrote:
>> >> Sure, if you'd like you can help me craft that comment now?
>> >
>> > I think this is short and clear:
>> > ===
>> > Limit the amount of kernel address space used to a fixed cap.
>> > 384 is an arbitrarily chosen value that leaves 270 MB of KVA available
>> > of the 2 MB total. On systems with large amount of memory reduce the
>> > the slope of the function in order to avoiding exhausting KVA.
>> > ===
>>
>> That's actually completely 100% incorrect...
>
>
>     Would it be a good idea to reference the other commit ref. numbers done
> by dillon@ in the commit message, or would this be redundant?

Sadly not.  There's so many layers of indirection and obfuscation of
units that there isn't a commit message that explains the current
state.  You have to read the code and reverse the math.

-- 
Peter Wemm - peter at wemm.org; peter at FreeBSD.org; peter at yahoo-inc.com; KI6FJV
"All of this is for nothing if we don't go to the stars" - JMS/B5
"If Java had true garbage collection, most programs would delete
themselves upon execution." -- Robert Sewell