From owner-freebsd-bugs@freebsd.org Mon Jul 23 19:03:35 2018 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 59AB5105298D for ; Mon, 23 Jul 2018 19:03:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id E4BDD8A81D for ; Mon, 23 Jul 2018 19:03:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id A8C18105298C; Mon, 23 Jul 2018 19:03:34 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 95D78105298A for ; Mon, 23 Jul 2018 19:03:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 303AA8A81C for ; Mon, 23 Jul 2018 19:03:34 +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 mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 75EAFD6F0 for ; Mon, 23 Jul 2018 19:03:33 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w6NJ3Xcb043364 for ; Mon, 23 Jul 2018 19:03:33 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w6NJ3Xm0043363 for bugs@FreeBSD.org; Mon, 23 Jul 2018 19:03:33 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 229986] Virtualbox + zfs scrub + gstat leads to deadlock Date: Mon, 23 Jul 2018 19:03:33 +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: 11.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: d8zNeCFG@aon.at 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: 2.1.27 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Jul 2018 19:03:35 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229986 --- Comment #2 from Martin Birgmeier --- I just noticed that the same hang happens when trying to stop the ctld. Scenario: - Machine recently upgrade to 11.2, but with https://reviews.freebsd.org/D7= 538 because of excessive swapping - Machine with raidz2 pool with 6 1.5 TB partitions - Machine acts as iSCSI server to remote VirtualBox instances - Run "zpool scrub" on the pool - In another terminal window, gstat is running - Stop the iSCSI server using "service ctld stop" Result: - gstat hangs - "service ctld stop" does not terminate Expected result: - gstat should continue running - "service ctld stop" should return Scenario continued: - Pause the scrub with "zpool scrub -p" Result: - After a few seconds, gstat continues and "service ctld stop" terminates Remark: - Both the VBox client running directly on the machine as well as the ctld serve zvols, so maybe it is related to that. --=20 You are receiving this mail because: You are the assignee for the bug.=