From owner-freebsd-fs@freebsd.org Fri May 6 21:22:22 2016 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 2ABCEB2D9C7 for ; Fri, 6 May 2016 21:22:22 +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 1BD401BF8 for ; Fri, 6 May 2016 21:22:22 +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 u46LMLQL048146 for ; Fri, 6 May 2016 21:22:21 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 207464] Panic when destroying ZFS snapshot Date: Fri, 06 May 2016 21:22:22 +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: 10.2-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: hpowell@lighthouseinstruments.com X-Bugzilla-Status: Open 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: 2.1.22 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 May 2016 21:22:22 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207464 --- Comment #19 from Howard Powell --- (In reply to Howard Powell from comment #17) Patched the 10.3-RELEASE kernel source and recompiled. A test case of creat= ing a snapshot, reading the snapshot, then destroying the snapshot 100 times finishes without a kernel panic. Looks promising. I'm beating the hell out of the new kernel now with 5 million create-read-destroy cycles to see what happens. Andriy - can you elaborate on "It seems that the code has a few bugs that _almost_ cancel out each other." - do you mean your proposed patch or the original code had bugs? ... waiting to push a mission critical machine into production until after = this is worked out. Thanks. --=20 You are receiving this mail because: You are the assignee for the bug.=