From owner-freebsd-bugs@freebsd.org Wed May 13 06:46:29 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id ABF112EB968 for ; Wed, 13 May 2020 06:46:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 49MQF14BNDz4cPw for ; Wed, 13 May 2020 06:46:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 8DBCC2EB966; Wed, 13 May 2020 06:46:29 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 8D8762EB965 for ; Wed, 13 May 2020 06:46:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49MQF13Hppz4cPv for ; Wed, 13 May 2020 06:46:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 69C001D59D for ; Wed, 13 May 2020 06:46:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 04D6kTw5046506 for ; Wed, 13 May 2020 06:46:29 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 04D6kTPC046505 for bugs@FreeBSD.org; Wed, 13 May 2020 06:46:29 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 224496] mpr and mps drivers seems to have issues with large seagate drives Date: Wed, 13 May 2020 06:46:27 +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-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: freebsd@diyit.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: 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: 2.1.33 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 May 2020 06:46:29 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224496 --- Comment #44 from Sharad Ahlawat --- (In reply to Matthias Pfaller from comment #43) logs shows the read events are still timing out, even with 90 also there are no retry messages, is "sysctl kern.cam.da.retry_count" set t= o 0 ? you could try a few things to get to the root cause: a: also disable ZFS cache flush sysctl vfs.zfs.cache_flush_disable=3D1 even though your drives are not SMRs b: experiment with larger timeout values also observe "gstat" output and ensure the first column L(q) is continually returning to zero and not getting stuck for any of the drives c: try setting reducing the SCIC speed to 3.0 in the controller settings; j= ust to eliminate some disk firmware speed compatibility issue. Side note, not sure if this applies to your drives but a few of mine don't support NCQ TRIM and are not properly driver blacklisted, so I had to set vfs.unmapped_buf_allowed=3D0 in loader.conf --=20 You are receiving this mail because: You are the assignee for the bug.=