From owner-freebsd-arch@FreeBSD.ORG Wed Feb 25 10:05:26 2015 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 300861AB for ; Wed, 25 Feb 2015 10:05:26 +0000 (UTC) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id ABA71C50 for ; Wed, 25 Feb 2015 10:05:25 +0000 (UTC) Received: from tom.home (kostik@localhost [127.0.0.1]) by kib.kiev.ua (8.14.9/8.14.9) with ESMTP id t1PA5Cah017047 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 25 Feb 2015 12:05:13 +0200 (EET) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.9.2 kib.kiev.ua t1PA5Cah017047 Received: (from kostik@localhost) by tom.home (8.14.9/8.14.9/Submit) id t1PA5Cb9017031; Wed, 25 Feb 2015 12:05:12 +0200 (EET) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Wed, 25 Feb 2015 12:05:12 +0200 From: Konstantin Belousov To: Harrison Grundy Subject: Re: locks and kernel randomness... Message-ID: <20150225100512.GC74514@kib.kiev.ua> References: <20150224182507.GI46794@funkthat.com> <54ECEA43.2080008@freebsd.org> <20150224231921.GQ46794@funkthat.com> <1424822522.1328.11.camel@freebsd.org> <20150225002956.GT46794@funkthat.com> <2F49527F-2F58-4BD2-B8BE-1B1190CCD4D0@bsdimp.com> <54ED5656.50607@astrodoggroup.com> <20150225090638.GB74514@kib.kiev.ua> <54ED92E5.4010803@astrodoggroup.com> <54ED9A4B.4060802@astrodoggroup.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54ED9A4B.4060802@astrodoggroup.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.0 X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on tom.home Cc: freebsd-arch@freebsd.org X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Feb 2015 10:05:26 -0000 On Wed, Feb 25, 2015 at 01:47:55AM -0800, Harrison Grundy wrote: > Three choices here are attached here: > > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197922 > > The only remaining one I don't have a patch for is putting a "real" PRNG > in ULE. > > At this point, as far as ULE goes, It just comes down to picking from > one of those approaches. The third patch, ' Creates sched_random, using the system used in cpu_search.', seems to miss updating the dpcpu randomval in sched_random(), isn't it ?