From owner-freebsd-bugs@freebsd.org Thu Feb 15 21:02:41 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 1BEEBF1A16C for ; Thu, 15 Feb 2018 21:02:41 +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 AC74B70317 for ; Thu, 15 Feb 2018 21:02:40 +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 DB698244EF for ; Thu, 15 Feb 2018 21:02:39 +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 w1FL2dFu029209 for ; Thu, 15 Feb 2018 21:02:39 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w1FL2djF029202 for freebsd-bugs@FreeBSD.org; Thu, 15 Feb 2018 21:02:39 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: freebsd-bugs@FreeBSD.org Subject: [Bug 225934] FIFOs lack kevent EVFILT_VNODE support Date: Thu, 15 Feb 2018 21:02:39 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: bdrewery@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-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: 2.1.25 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Feb 2018 21:02:41 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D225934 Bug ID: 225934 Summary: FIFOs lack kevent EVFILT_VNODE support Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: bdrewery@FreeBSD.org r150074 had a relevant comment here: +/* + * Because fifos are now a file descriptor layer object, EVFILT_VNODE is n= ot + * implemented. Likely, fifo_kqfilter() should be removed, and + * fifo_kqfilter_f() should know how to forward the request to the underli= ng + * vnode using f_vnode in the file descriptor here. + */ My main interest is in having NOTE_DELETE work. This impacts tail -F as it tries to use NOTE_DELETE|NOTE_RENAME but gets EINVAL and then falls into a sleep+stat+read loop. kevent(4,{ 3,EVFILT_VNODE,EV_ADD|EV_ENABLE|EV_CLEAR,NOTE_DELETE|NOTE_RENAME,0x0,0x0 3,EVFILT_READ,EV_ADD|EV_ENABLE|EV_CLEAR,0x0,0x0,0x0 },2,0x0,0,{ 0.000000000= }) ERR#22 'Invalid argument' --=20 You are receiving this mail because: You are the assignee for the bug.=