Date: Tue, 24 Jul 2018 21:17:03 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Ed Maste <emaste@freebsd.org> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: i386 top reporting nan% or inf% WCPU Message-ID: <20180724181703.GK65334@kib.kiev.ua> In-Reply-To: <CAPyFy2Bo2H%2BiUmMt22vkg4c5tg%2BymPLUEz7Qxr-VFKU1WHX0TQ@mail.gmail.com> References: <CAPyFy2Bo2H%2BiUmMt22vkg4c5tg%2BymPLUEz7Qxr-VFKU1WHX0TQ@mail.gmail.com>
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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.help
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