From owner-freebsd-bugs@FreeBSD.ORG Tue Jul 29 03:00:35 2003 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5885737B401 for ; Tue, 29 Jul 2003 03:00:35 -0700 (PDT) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7828C43F3F for ; Tue, 29 Jul 2003 03:00:34 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.12.9/8.12.9) with ESMTP id h6TA0XUp007202 for ; Tue, 29 Jul 2003 03:00:33 -0700 (PDT) (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.9/8.12.9/Submit) id h6TA0XTB007201; Tue, 29 Jul 2003 03:00:33 -0700 (PDT) Resent-Date: Tue, 29 Jul 2003 03:00:33 -0700 (PDT) Resent-Message-Id: <200307291000.h6TA0XTB007201@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Roman Nikitchenko Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DACB937B401 for ; Tue, 29 Jul 2003 02:58:04 -0700 (PDT) Received: from www.trifle.net (www.trifle.net [195.24.128.164]) by mx1.FreeBSD.org (Postfix) with ESMTP id B906F43FA3 for ; Tue, 29 Jul 2003 02:58:01 -0700 (PDT) (envelope-from hc@www.trifle.net) Received: from www.trifle.net (localhost [127.0.0.1]) by www.trifle.net (8.12.6p2/8.12.6) with ESMTP id h6T9vvIv082704 for ; Tue, 29 Jul 2003 12:57:57 +0300 (EEST) (envelope-from hc@www.trifle.net) Received: (from hc@localhost) by www.trifle.net (8.12.6p2/8.12.6/Submit) id h6T9vtbt082701; Tue, 29 Jul 2003 12:57:55 +0300 (EEST) Message-Id: <200307290957.h6T9vtbt082701@www.trifle.net> Date: Tue, 29 Jul 2003 12:57:55 +0300 (EEST) From: Roman Nikitchenko To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Subject: kern/55007: btoken close() on kqueue filter descriptors. X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Roman Nikitchenko List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Jul 2003 10:00:35 -0000 >Number: 55007 >Category: kern >Synopsis: btoken close() on kqueue filter descriptors. >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Jul 29 03:00:32 PDT 2003 >Closed-Date: >Last-Modified: >Originator: Roman Nikitchenko >Release: FreeBSD 4.8-STABLE i386 >Organization: Trifle Co. Ltd. >Environment: System: FreeBSD hc.apex.dp.ua 4.8-STABLE FreeBSD 4.8-STABLE #0: Mon Jul 28 18:51:32 EEST 2003 hc@hc.apex.dp.ua:/usr/src/sys/compile/HC i386 >Description: File descriptors obtained through kqueue() call can't be closed using uthread_close() because of non-libc_r kqueue() implementation and _thread_fd_table checks on uthread_close(). I see this behaviour after checks in /usr/src/lib/libc_r/uthread/uthread_close.c in the following branches: MAIN: after revision 1.14, RELENG_4_8_BP after revision 1.10.2.4. >How-To-Repeat: Link against libc_r anything like this: int poller = kqueue(); if ( close( poller ) < 0 ) perror( "close" ); >Fix: Write uthread_kqueue() function inserting new kqueue() descriptor into _thread_fd_table (maybe better way exists, but this is all i found). As workaround: syscall( SYS_close, fd ), but this is too dirty. >Release-Note: >Audit-Trail: >Unformatted: