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Date:      Sat, 10 Nov 2012 12:48:09 -0500
From:      Eitan Adler <eadler@freebsd.org>
To:        Peter Wemm <peter@wemm.org>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, Alfred Perlstein <bright@mu.org>, src-committers@freebsd.org, Alfred Perlstein <alfred@freebsd.org>
Subject:   Re: svn commit: r242847 - in head/sys: i386/include kern
Message-ID:  <CAF6rxg=ryNEMEidJdgf8-Ab=bD15R1ypcz-bS8183U4JK_Q17g@mail.gmail.com>
In-Reply-To: <CAGE5yCouCWr4NKbgnjKfLcjc8EWqG0wRiSmXDDnrnM3%2BUc8KVQ@mail.gmail.com>
References:  <201211100208.qAA28e0v004842@svn.freebsd.org> <CAF6rxg=HPmQS1T-LFsZ=DuKEqH30iJFpkz%2BJGhLr4OBL8nohjg@mail.gmail.com> <509DC25E.5030306@mu.org> <509E3162.5020702@FreeBSD.org> <509E7E7C.9000104@mu.org> <CAF6rxgmV8dx-gsQceQKuMQEsJ%2BGkExcKYxEvQ3kY%2B5_nSjvA3w@mail.gmail.com> <509E830D.5080006@mu.org> <509E847E.30509@mu.org> <CAF6rxgnfm4HURYp=O4MY8rB6H1tGiqJ3rdPx0rZ8Swko5mAOZg@mail.gmail.com> <509E8930.50800@mu.org> <CAF6rxgmabVuR0JoFURRUF%2Bed0hmT=LF_n5LXSip0ibU0hk6qWw@mail.gmail.com> <CAGE5yCouCWr4NKbgnjKfLcjc8EWqG0wRiSmXDDnrnM3%2BUc8KVQ@mail.gmail.com>

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On 10 November 2012 12:45, Peter Wemm <peter@wemm.org> wrote:
> On Sat, Nov 10, 2012 at 9:33 AM, Eitan Adler <eadler@freebsd.org> wrote:
>> On 10 November 2012 12:04, Alfred Perlstein <bright@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...

okay. I'm going by the log messages posted so far. I have no idea how
this works. Can you explain it better?


-- 
Eitan Adler
Source, Ports, Doc committer
Bugmeister, Ports Security teams



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