From owner-freebsd-bugs@freebsd.org Tue Aug 23 01:39:41 2016 Return-Path: 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 CAAFABC064A for ; Tue, 23 Aug 2016 01:39:41 +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 BA5031BD2 for ; Tue, 23 Aug 2016 01:39:41 +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 u7N1de59074090 for ; Tue, 23 Aug 2016 01:39:41 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 168298] VirtualBox using AIO on a zvol crashes Date: Tue, 23 Aug 2016 01:39:41 +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: 8.3-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: rkoberman@gmail.com X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: 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: 2.1.22 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Aug 2016 01:39:41 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D168298 rkoberman@gmail.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rkoberman@gmail.com --- Comment #5 from rkoberman@gmail.com --- Just for the record, this is not ZFS related. The same issue shows up with = VB and UFS. I am running 11 where AIO is integrated into the kernel, so I'll t= ry the tuning advice and see what happens. In my case it produced several crashes in my Window 7 client while suspendi= ng the VM and many hangs of the VM. Worst case was when the virtual disk requi= red a disk check which, in turn hung repeatedly, though eventually it did compl= ete and the system is running again. Can AIO be disabled? I was looking at kern.features.aio. virtualbox-ose-5.0.26_1 FreeBSD rogue 11.0-BETA4 FreeBSD 11.0-BETA4 #1 r303806: Sat Aug 6 18:50:50= PDT 2016 root@rogue:/usr/obj/usr/src/sys/GENERIC.4BSD amd64 --=20 You are receiving this mail because: You are the assignee for the bug.=