From owner-freebsd-current@freebsd.org Tue Jul 24 20:02:05 2018 Return-Path: Delivered-To: freebsd-current@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 D3F5B1054A29 for ; Tue, 24 Jul 2018 20:02:05 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Received: from smtp-out-no.shaw.ca (smtp-out-no.shaw.ca [64.59.134.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "Client", Issuer "CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 542007D778; Tue, 24 Jul 2018 20:02:05 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Received: from spqr.komquats.com ([70.67.125.17]) by shaw.ca with ESMTPA id i3VRfZFIVp5A1i3VTfgkJc; Tue, 24 Jul 2018 14:02:04 -0600 X-Authority-Analysis: v=2.3 cv=JLKPTPCb c=1 sm=1 tr=0 a=VFtTW3WuZNDh6VkGe7fA3g==:117 a=VFtTW3WuZNDh6VkGe7fA3g==:17 a=kj9zAlcOel0A:10 a=R9QF1RCXAYgA:10 a=YxBL1-UpAAAA:8 a=6I5d2MoRAAAA:8 a=aCSBqE10hRDOshZ2GicA:9 a=CjuIK1q_8ugA:10 a=Ia-lj3WSrqcvXOmTRaiG:22 a=IjZwj45LgO3ly-622nXo:22 Received: from slippy.cwsent.com (slippy8 [10.2.2.6]) by spqr.komquats.com (Postfix) with ESMTPS id 954086CB; Tue, 24 Jul 2018 13:02:08 -0700 (PDT) Received: from slippy.cwsent.com (localhost [127.0.0.1]) by slippy.cwsent.com (8.15.2/8.15.2) with ESMTP id w6OK1m3L002265; Tue, 24 Jul 2018 13:01:48 -0700 (PDT) (envelope-from Cy.Schubert@cschubert.com) Received: from slippy (cy@localhost) by slippy.cwsent.com (8.15.2/8.15.2/Submit) with ESMTP id w6OK1lFG002262; Tue, 24 Jul 2018 13:01:47 -0700 (PDT) (envelope-from Cy.Schubert@cschubert.com) Message-Id: <201807242001.w6OK1lFG002262@slippy.cwsent.com> X-Authentication-Warning: slippy.cwsent.com: cy owned process doing -bs X-Mailer: exmh version 2.8.0 04/21/2012 with nmh-1.7.1 Reply-to: Cy Schubert From: Cy Schubert X-os: FreeBSD X-Sender: cy@cwsent.com X-URL: http://www.cschubert.com/ To: Konstantin Belousov cc: Ed Maste , FreeBSD Current Subject: Re: i386 top reporting nan% or inf% WCPU In-Reply-To: Message from Konstantin Belousov of "Tue, 24 Jul 2018 21:17:03 +0300." <20180724181703.GK65334@kib.kiev.ua> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 24 Jul 2018 13:01:47 -0700 X-CMAE-Envelope: MS4wfKjwDjKb5Z0ZHIFy4R/w83niBJy6DuIAN3soo+2gWs16eX4JHCQfQLRYFwHZDQ6OA8xkulYmAcR5L9flIhwiKaxwnQ8ijZb/WvrwxcAaV/Cl2Qwlxjdt mdSLTJXV7amExU/rDGr7hwwM3/54mhYm5b7zb43dTrIhS1QNO6K3rDW2Lnj8J+/Iwh1qJYwNqouAFU0ifKQg0JAbxuvSRMaTRVd5vIMuvGmbfV1/xWeE1wdh C1RG6keSB0IUh4sbT1jGVQ== X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Jul 2018 20:02:06 -0000 In message <20180724181703.GK65334@kib.kiev.ua>, Konstantin Belousov writes: > On Tue, Jul 24, 2018 at 01:43:55PM -0400, Ed Maste wrote: > > I recently merged my work in progress tree up to r336665 and built a > > i386 VM image. Running the image in QEMU (qemu-system-x86_64) and > > executing 'top' I see the WCPU column reported as either nan% or inf% > > for all processes. > > > > Prior to today I hadn't built or tested i386 in a while, so I am not > > sure off hand if this is a recent issue. amd64 is fine. Is anyone else > > seeing this? > > I believe this is a qemu bug. Their FPU emulation is very basic, at least > it was so several years ago, when not using accelerated emulation. Just tested on the i386 slice on my laptop. No problems there. -- Cheers, Cy Schubert FreeBSD UNIX: Web: http://www.FreeBSD.org The need of the many outweighs the greed of the few.