From owner-freebsd-bugs@freebsd.org  Sat Dec 23 07:09:03 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 8B088E9D8EC
 for <freebsd-bugs@mailman.ysv.freebsd.org>;
 Sat, 23 Dec 2017 07:09:03 +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 7A2D879643
 for <freebsd-bugs@FreeBSD.org>; Sat, 23 Dec 2017 07:09:03 +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 vBN793Dg079896
 for <freebsd-bugs@FreeBSD.org>; Sat, 23 Dec 2017 07:09:03 GMT
 (envelope-from bugzilla-noreply@freebsd.org)
From: bugzilla-noreply@freebsd.org
To: freebsd-bugs@FreeBSD.org
Subject: [Bug 224536] FLUSHCACHE48 AHCI Timeouts on SMR Drives
Date: Sat, 23 Dec 2017 07:08:58 +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: 11.1-STABLE
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: Affects Only Me
X-Bugzilla-Who: ilgenox@yahoo.it
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: <bug-224536-8@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: 2.1.25
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, 23 Dec 2017 07:09:03 -0000

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224536

            Bug ID: 224536
           Summary: FLUSHCACHE48 AHCI Timeouts on SMR Drives
           Product: Base System
           Version: 11.1-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: ilgenox@yahoo.it

Hi!
Starting from this thread:

https://forums.freenas.org/index.php?threads/a-long-journey-to-solve-cam-st=
atus-command-timeout-issues.59549/

I had hard times troubleshooting this issue on FreeNAS with 4 x ST8000AS0002
Drives.
It seems that drives increase latency over time and exceed the AHCI
(hardcoded?) 31000 msec timeout.
It will be great if FreeBSD could support these new SMR drives without
disabling cache flushing on ZFS.

Thanks,
Fabio

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