From owner-freebsd-bugs@freebsd.org Sun Jun 26 17:49:20 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 4685DB81BAD for ; Sun, 26 Jun 2016 17:49:20 +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 365502483 for ; Sun, 26 Jun 2016 17:49:20 +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 u5QHnKSt019203 for ; Sun, 26 Jun 2016 17:49:20 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 210593] Samba w/ aio throws ENOTSUPP errors on 11.0-ALPHA2 Date: Sun, 26 Jun 2016 17:49:20 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: jmg@FreeBSD.org 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: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: 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: Sun, 26 Jun 2016 17:49:20 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D210593 Bug ID: 210593 Summary: Samba w/ aio throws ENOTSUPP errors on 11.0-ALPHA2 Product: Base System Version: 11.0-CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: jmg@FreeBSD.org $pkg info | grep samba samba36-3.6.25_3 Free SMB and CIFS client and server for Unix When accessing a samba server from MacOSX 10.10.5 w/ aio enabled via the following in the global section: aio read size =3D 1 aio write size =3D 1 aio write behind =3D true I get tons of errors: [2016/06/25 13:07:16.538032, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.542241, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.543268, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.545097, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.651903, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.654807, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.673397, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.686022, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.744821, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.812774, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.839417, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.875530, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.877068, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.905727, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.906400, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.918365, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.919426, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.919999, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.953497, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported [2016/06/25 13:07:16.965503, 0] smbd/aio.c:232(schedule_aio_read_and_X) schedule_aio_read_and_X: aio_read failed. Error Operation not supported and so on... This significantly impacts performance as Samba now consumes a large amount of CPU time, I believe trying the aio call multiple times, before it gives up, and tries a normal read or write.. After disabling this, CPU usage dropped from 60-90% down to ~5%... There are many people who have aio turned on in their configs as this is a recommended performance tuning option for Samba posted throughout the inet. --=20 You are receiving this mail because: You are the assignee for the bug.=