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From: "David Xu" <davidxu@freebsd.org>
To: "Juli Mallett" <jmallett@FreeBSD.org>
References: <Pine.GSO.4.10.10304180111270.25495-100000@pcnet1.pcnet.com>
	<002f01c3056f$6d9b7840$f001a8c0@davidw2k> <20030418010435.A6251@FreeBSD.org>
Date: Fri, 18 Apr 2003 14:09:23 +0800
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cc: Daniel Eischen <eischen@pcnet1.pcnet.com>
cc: freebsd-threads@freebsd.org
Subject: Re: libpthread patch
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----- Original Message -----=20
From: "Juli Mallett" <jmallett@FreeBSD.org>
To: "David Xu" <davidxu@freebsd.org>
Cc: "Daniel Eischen" <eischen@pcnet1.pcnet.com>; =
<freebsd-threads@freebsd.org>
Sent: Friday, April 18, 2003 2:04 PM
Subject: Re: libpthread patch


> * De: David Xu <davidxu@freebsd.org> [ Data: 2003-04-18 ]
> [ Subjecte: Re: libpthread patch ]
> > > There are a few issues we've got to go over, as well as
> > > looking closely at any locking order problems.
> > >=20
> > I have ever tried to port some kernel code to userland (e.g
> > mutex and witness), but now they were left there for
> > several days without be touched.
>=20
> This seems like overkill, in fact, it is by definition.  If you
> want some primitive private-locks-only mutex tracing/auditing,
> I've done a bit of that and could give you some hints.  Using the
> casuptr facility introduced by thr may be a good idea, no?  It
> is known to work, and is relatively un-complex?  Or am I missing
> something?

I want to use code to detect LOR not just human eyes, I can accept
any reasonable method.

> --=20
> juli mallett. email: jmallett@freebsd.org; aim: bsdflata; efnet: juli;