From owner-freebsd-fs@freebsd.org Thu Jul 19 11:10:07 2018 Return-Path: Delivered-To: freebsd-fs@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 2626A102EB0E for ; Thu, 19 Jul 2018 11:10:07 +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 977788B7E6 for ; Thu, 19 Jul 2018 11:10:06 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 528E5102EB0D; Thu, 19 Jul 2018 11:10:06 +0000 (UTC) Delivered-To: fs@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 404A6102EB0C for ; Thu, 19 Jul 2018 11:10:06 +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 CD1138B7E5 for ; Thu, 19 Jul 2018 11:10:05 +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 0B00C16F42 for ; Thu, 19 Jul 2018 11:10:05 +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 w6JBA4eZ078844 for ; Thu, 19 Jul 2018 11:10:04 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w6JBA44f078843 for fs@FreeBSD.org; Thu, 19 Jul 2018 11:10:04 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: fs@FreeBSD.org Subject: [Bug 229829] [zfs] scrubbing prevents shutdown and slows down startup Date: Thu, 19 Jul 2018 11:10:05 +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-STABLE 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: fs@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-fs@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Jul 2018 11:10:07 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229829 --- Comment #2 from Martin Birgmeier --- Scenarios, continued: - server up, scrub of pool is continuing - gstat is running - 2 VirtualBox VMs are running - another VirtualBox VM is accessing a zvol via iSCSI (ctl) Result: - The machine freezes: not immediately, but process after process gets stuck Scenario continued: - After 30 minutes watching this, perform hard reset - Start single user - "fsck -p" -> cleans UFS root fs - issue "zpool export pool" in order to start multiuser without the pool be= ing imported Result: - The scrubbing starts again immediately, no command prompt Scenario continued: - Issue "ifconfig inet " into console buffer - Issue "ifconfig inet6 " into console buffer - On another machine, wait until ping succeeds Result: - First ping after ca. 20 minutes (see previous scenarios) - Console shows that 20G gmirror for swap has been rebuilt - pool is exported I am running with https://reviews.freebsd.org/D7538 applied because otherwi= se the system was slowly filling all swap space and swapping continuously, even with no activity. Something is very wrong in FreeBSD 11.2 with ZFS, swapping, and memory management. I did not have these problems with 11.1. -- Martin --=20 You are receiving this mail because: You are the assignee for the bug.=