Helio Loureiro

Após uma olhada mais detalhada, vi que faltava alterar o arquivo de configuração para:

*default release=cvs tag=RELENG_7_1

Isso foi suficiente para baixar a versão 7.1 completa (eu estava com a versão 7 STABLE anteriormente). Já no UPDATES, pude verificar:

20090106:
        FreeBSD 7.1-RELEASE

O engraçado foi que atualizei via cvsup no dia 03. Mas enfim... fiz um make world e...

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FreeBSD 7.1-RELEASE #23: Sat Jan  3 23:41:26 BRST 2009

Hoje, dia 5, recebi a mensagem de release da versão 7.1:

Date: Sun, 4 Jan 2009 23:29:51 -0500
From: Ken Smith 
To: freebsd-announce@freebsd.org
Subject: [FreeBSD-Announce] FreeBSD 7.1-RELEASE Available


The FreeBSD Release Engineering Team is pleased to announce the availability
of FreeBSD 7.1-RELEASE.  This is the second release from the 7-STABLE branch
which improves on the functionality of FreeBSD 7.0 and introduces some
new features.  Some of the highlights:

	- The ULE scheduler is now the default in GENERIC kernels for
	  amd64 and i386 architectures.  The ULE scheduler significantly
	  improves performance on multicore systems for many workloads.
	- Support for using DTrace inside the kernel has been imported
	  from OpenSolaris.  DTrace is a comprehensive dynamic tracing
	  framework.
	- A new and much-improved NFS Lock Manager (NLM) client.
	- Boot loader changes allow, among other things, booting from
	  USB devices and booting from GPT-labeled devices.
	- The cpuset(2) system call and cpuset(1) command have been added,
	  providing an API for thread to CPU binding and CPU resource
	  grouping and assignment.
	- KDE updated to 3.5.10, GNOME updated to 2.22.3.
	- DVD-sized media for the amd64 and i386 architectures

For a complete list of new features and known problems, please see the
online release notes and errata list, available at:

    http://www.FreeBSD.org/releases/7.1R/relnotes.html
    http://www.FreeBSD.org/releases/7.1R/errata.html
[...]

Eu até agora não notei muita diferença, uma vez que já tinha alterado o escalonador pra ULE desde a instalação do 7.0, mas aparentemente os travamentos no boot, ao iniciar o dual-core via ACPI, pararam.