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Date:      Sun, 04 Mar 2001 16:00:13 -0800 (PST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Doug Rabson <dfr@nlsystems.com>
Cc:        ia64@FreeBSD.org, Andrew Gallatin <gallatin@cs.duke.edu>
Subject:   Re: Grrrr..
Message-ID:  <XFMail.010304160013.jhb@FreeBSD.org>
In-Reply-To: <Pine.BSF.4.33.0103042332310.4746-100000@salmon.nlsystems.com>

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On 04-Mar-01 Doug Rabson wrote:
> On Fri, 2 Mar 2001, John Baldwin wrote:
> 
>>
>> On 02-Mar-01 Andrew Gallatin wrote:
>> >
>> > Doug Rabson writes:
>> >  >
>> >  > I remember now. I always intended to redo pmap_map() via the
>> >  > direct-mapped
>> >  > segments. This saves kernel virtual address space (of which there is
>> >  > plenty) but more importantly saves TLB entries and on ia64 VHTP
>> >  > entries. I
>> >  > just hacked up this patch which isn't tested on anything but I think
>> >  > its
>> >  > on the right lines. Beware of conflicts - Drew Gallatin is working in
>> >  > this
>> >  > area.
>> >  >
>> >
>> > I'm done now (and your latest patch at the top of this thread
>> > incorporates my committed changes).
>> >
>> > I really like using the direct-mapped segment for this.
>>
>> I'm going to test this out on my alpha and i386 test boxes here at work.
>> If it works there, I think it should probably be committed.  Not that I
>> am overwhelmed with pmap Clue atm. :)
> 
> Well I'm happy with the patch on ia64 and alpha. If you don't get any
> problems on i386, I think it should be committed. Perhaps you could do the
> honours?

Heh, I guess you haven't seen my other e-mail yet.  My x86 box didn't make it
back to multiuser.  At least, I can't ping the box after rebooting it with the
new kernel.  I'll probably drive in and see if I can't get it quickly fixed. 
My alpha is fine with it however.

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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