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Date:      Tue, 16 Oct 2001 15:22:34 +0100 (BST)
From:      Doug Rabson <dfr@nlsystems.com>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        Peter Wemm <peter@wemm.org>, <ia64@FreeBSD.ORG>, <dfr@FreeBSD.ORG>
Subject:   Re: non recursive lock reaquired..
Message-ID:  <Pine.BSF.4.33.0110161519380.61746-100000@herring.nlsystems.com>
In-Reply-To: <XFMail.011015143548.jhb@FreeBSD.org>

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On Mon, 15 Oct 2001, John Baldwin wrote:

> Not unless you have a well defined order for zone locks.  For processes we
> always lock child processes then parent processes.  Do you have an order in
> mind for zone locks?  If not, then how are you going to ensure two threads
> won't lock the zones in the opposite order?

Actually, I'm re-working pmap_kenter() and friends to avoid going through
the zone allocator altogether. I may also remove the ia64_lpte from the
pv_entry_t and allocate them from pseudo-page-tables. Not sure about that
part yet.

-- 
Doug Rabson				Mail:  dfr@nlsystems.com
					Phone: +44 20 8348 6160



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