From owner-freebsd-fs@freebsd.org Fri May 26 21:22:58 2017 Return-Path: Delivered-To: freebsd-fs@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 4E993D83700 for ; Fri, 26 May 2017 21:22:58 +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 3E5EB12A7 for ; Fri, 26 May 2017 21:22:58 +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 v4QLMvIK053277 for ; Fri, 26 May 2017 21:22:58 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 219457] ZFS ARC eviction & system hangup Date: Fri, 26 May 2017 21:22:58 +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: 10.3-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: vsasjason@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-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: 2.1.23 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 May 2017 21:22:58 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D219457 --- Comment #12 from Anton Sayetsky --- (In reply to Fabian Keil from comment #6) > The procstat output suggests that you might be using geli for the swap de= vice. Yes, you're right. I'm using GELI (AES-256-XTS/SHA256/onetime) over gmirror= of 2 gpt partitions. > This is known to cause deadlocks under memory pressure: > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209759 Disabled GELI swap & stopped relevant gmirror -- still got ARC eviction aft= er running tar... > You could reduce vfs.zfs.deadman_synctime_ms to more quickly get a panic when the system becomes unresponsive. Unfortunately, I cannot see any panics (and thus, stack traces). System just hangs w/o any output to logs or console, and all that I can do - reset or p= ower cycle through IPMI interface. I'm thinking about compiling kernel with KDB/= DDB and collecting coredump with NMI. > It would probably help to see the counters in vm_cnt. Attached relevant sysctl output & similar diagnostics as before, but w/o sw= ap. --=20 You are receiving this mail because: You are the assignee for the bug.=