From owner-freebsd-bugs@freebsd.org  Sat Oct 14 12:10:13 2017
Return-Path: <owner-freebsd-bugs@freebsd.org>
Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5B49FE4687A
 for <freebsd-bugs@mailman.ysv.freebsd.org>;
 Sat, 14 Oct 2017 12:10:13 +0000 (UTC)
 (envelope-from bugzilla-noreply@freebsd.org)
Received: from kenobi.freebsd.org (kenobi.freebsd.org
 [IPv6:2001:1900:2254:206a::16:76])
 (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 3EB3B6EA56
 for <freebsd-bugs@FreeBSD.org>; Sat, 14 Oct 2017 12:10:13 +0000 (UTC)
 (envelope-from bugzilla-noreply@freebsd.org)
Received: from bugs.freebsd.org ([127.0.1.118])
 by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v9ECABhb061686
 for <freebsd-bugs@FreeBSD.org>; Sat, 14 Oct 2017 12:10:13 GMT
 (envelope-from bugzilla-noreply@freebsd.org)
From: bugzilla-noreply@freebsd.org
To: freebsd-bugs@FreeBSD.org
Subject: [Bug 213155] possible kernel regression when running 11.x-RELEASE on
 KVM on AMD Opterons
Date: Sat, 14 Oct 2017 12:10:05 +0000
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: Base System
X-Bugzilla-Component: kern
X-Bugzilla-Version: 11.1-RELEASE
X-Bugzilla-Keywords: regression
X-Bugzilla-Severity: Affects Some People
X-Bugzilla-Who: marvin0815@gmail.com
X-Bugzilla-Status: New
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: ---
X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-213155-8-pisNjU1BiB@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-213155-8@https.bugs.freebsd.org/bugzilla/>
References: <bug-213155-8@https.bugs.freebsd.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: freebsd-bugs@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: Bug reports <freebsd-bugs.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-bugs>,
 <mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs/>
List-Post: <mailto:freebsd-bugs@freebsd.org>
List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
 <mailto:freebsd-bugs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 14 Oct 2017 12:10:13 -0000

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213155

--- Comment #24 from Oliver B=C3=B6ttcher <marvin0815@gmail.com> ---
(In reply to Martin Waschb=C3=BCsch from comment #23)
> When you say that "enabling all features and model=3Dqemu64 booted", does=
 that include xsave?

Yes. The long snippet exposes all features of Opteron_G5 including xsave. T=
he
only difference I see is that the CPU is reported as QEMU Virtual CPU versi=
on
2.5+.

My ultimately wild guess is that FreeBSD is doing some optimizations based =
on
the reported CPU like workarounds for bugs which is necessary for bare metal
but crashes virtualized environments not having these bugs.

--=20
You are receiving this mail because:
You are the assignee for the bug.=