From owner-freebsd-bugs@freebsd.org Tue Dec 8 21:56:57 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 B763D4AD3BB for ; Tue, 8 Dec 2020 21:56:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4CrDY54fq0z3DDH for ; Tue, 8 Dec 2020 21:56:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 9E1B34AD493; Tue, 8 Dec 2020 21:56:57 +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 9DDD34AD1E1 for ; Tue, 8 Dec 2020 21:56:57 +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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 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 4CrDY53ygZz3DX0 for ; Tue, 8 Dec 2020 21:56:57 +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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 74F851B805 for ; Tue, 8 Dec 2020 21:56:57 +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 0B8Luv9U008566 for ; Tue, 8 Dec 2020 21:56:57 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 0B8Luvnt008565 for bugs@FreeBSD.org; Tue, 8 Dec 2020 21:56:57 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 251694] Spurious EBUSY after zfs receiving properties to an existing dataset Date: Tue, 08 Dec 2020 21:56:57 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 12.2-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: asomers@FreeBSD.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: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: 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: 2.1.34 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Dec 2020 21:56:57 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251694 Bug ID: 251694 Summary: Spurious EBUSY after zfs receiving properties to an existing dataset Product: Base System Version: 12.2-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: asomers@FreeBSD.org If you do a "zfs send -p | zfs receive -F " to an existing but e= mpty dataset, the receive will complete successfully but spuriously fail with ex= it status 1 and the message "cannot mount 'pool/dataset': mountpoint or datase= t is busy". For example, zpool create pool vtbd zfs create pool/src zfs create pool/dst touch /pool/src/foo zfs snapshot pool/src@1 zfs send -p pool/src@1 | zfs receive -F pool/dst cannot mount 'pool/dst': mountpoint or dataset is busy The root cause is a merge error made in r344569 and MFCed in r345578, which merged changes a10d50f999 and e63ac16d25 from ZoL. The merge: * failed to flip a =3D=3D to an !=3D like the upstream change did, and * Left out one chunk This bug affects stable/12, but not head. It looks like stable/11 is affec= ted too, but I haven't tested yet. --=20 You are receiving this mail because: You are the assignee for the bug.=