From owner-freebsd-questions@freebsd.org Fri Sep 14 07:40:01 2018 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4066610A6789 for ; Fri, 14 Sep 2018 07:40:01 +0000 (UTC) (envelope-from dch@skunkwerks.at) Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id D6FAE778CC for ; Fri, 14 Sep 2018 07:40:00 +0000 (UTC) (envelope-from dch@skunkwerks.at) Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailout.nyi.internal (Postfix) with ESMTP id A03C221BF7 for ; Fri, 14 Sep 2018 03:39:59 -0400 (EDT) Received: from web6 ([10.202.2.216]) by compute7.internal (MEProxy); Fri, 14 Sep 2018 03:39:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=skunkwerks.at; h=content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-sender :x-me-sender:x-sasl-enc; s=fm3; bh=IsZbQ/L/mcWDggy98fyxnf25byPqs Soj0fSo5BiWLj0=; b=qLsfCDn4r7FUqgEMC0sHW6bN+ERj4e7H828wJmxvQfdDn QZVp8n5rcQiK+doEGXUBrcYU7t6xsXiQX1SCGNKFckhiPKRsJIPFpClWIcvYEb6E HyIvAo3fRBvvEjqdtcYTFPHM8JxccOSNrl1Tfh6E/PEmY/vcUPtUOiq9wLlioXvN Gv5VT42ToQxLgW0dSbJA0quvTCJm62PHEALdeElWH3y4OtC3ntq5IA+MqAaLTkWA 92/zNgJvjyYHiE6p4PvX60Vi9l+Mf3+kiooCUiaMGu3aT7omyc6SHkiWzXqIq1XN 4nuTv+Cjes1Ia1HFu5rSjOO32O3gVmfgbyKz/g/6w== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=IsZbQ/ L/mcWDggy98fyxnf25byPqsSoj0fSo5BiWLj0=; b=EseR/yDaIOFfR/L97JSi7d 21gKQHwmIN8KiS//Ni7XpHTN8gcJnvsG9u6VKlUGjyxBv3ZB2RNe44BJhrKvhWax TiTJVZ19C89nXix03/F+cUjjYarch6VF6Ec9FB527NvcMUF+F7pAzTpdjPMMSUgS U69EvR1k4XEK5A++xAKKkas6VbD4Uxiv67PSq50i9U8dg74r02aKFGl4lXJgdGBw FK5znR2N6YEDnbPuS1zkmzeVTDhqPuGgWmBEJb2KfLGyk+b7zAGiC/wh/VWg//TE uMcPpLNYUJ+JE+YGx0dlueNvswCQY/mLPlQBJcVlFlir3Cj6BjGtcYMPHApi81wA == X-ME-Proxy: X-ME-Sender: Received: by mailuser.nyi.internal (Postfix, from userid 99) id AEB384164; Fri, 14 Sep 2018 03:39:58 -0400 (EDT) Message-Id: <1536910798.329524.1507804736.2F76C06D@webmail.messagingengine.com> From: Dave Cottlehuber To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" X-Mailer: MessagingEngine.com Webmail Interface - ajax-e556cd15 In-Reply-To: <20180912054340.1267C13295@freefall.freebsd.org> References: <20180912054340.1267C13295@freefall.freebsd.org> Subject: Re: [FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-18:08.lazyfpu Date: Fri, 14 Sep 2018 09:39:58 +0200 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Sep 2018 07:40:01 -0000 On Wed, 12 Sep 2018, at 07:43, FreeBSD Errata Notices wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > ============================================================================= > FreeBSD-EN-18:08.lazyfpu Errata Notice > The FreeBSD Project > > Topic: LazyFPU remediation causes potential data corruption Data Corruption reads a bit like "Imminent SuperNova in Your Area".. I'm not really sure what it means for users & sysadmins. Given we've had the original lazyfpu patches out for 11.x for a few months[1]: - what might data corruption entail? - has this been observed in the wild? Many thanks for the efforts into making these patches available. Dave [1]: https://www.freebsd.org/security/advisories/FreeBSD-SA-18:07.lazyfpu.asc