From owner-freebsd-current Mon Jul 27 06:27:59 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id GAA16354 for freebsd-current-outgoing; Mon, 27 Jul 1998 06:27:59 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from itesec.hsc.fr (root@itesec.hsc.fr [192.70.106.33]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id GAA16276 for ; Mon, 27 Jul 1998 06:27:45 -0700 (PDT) (envelope-from pb@hsc.fr) Received: from mars.hsc.fr (mars.hsc.fr [192.70.106.44]) by itesec.hsc.fr (8.8.8/8.8.5/itesec-1.12-nospam) with ESMTP id PAA03816; Mon, 27 Jul 1998 15:27:05 +0200 (MET DST) Received: (from pb@localhost) by mars.hsc.fr (8.8.8/8.8.8/pb-19980526) id PAA24349; Mon, 27 Jul 1998 15:26:59 +0200 (CEST) (envelope-from pb) Message-ID: <19980727152658.A24276@mars.hsc.fr> Date: Mon, 27 Jul 1998 15:26:58 +0200 From: Pierre Beyssac To: Karl Denninger , current@FreeBSD.ORG Subject: Re: MMAP problems References: <19980725155148.43084@mcs.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.92.8i In-Reply-To: <19980725155148.43084@mcs.net>; from Karl Denninger on Sat, Jul 25, 1998 at 03:51:48PM -0500 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sat, Jul 25, 1998 at 03:51:48PM -0500, Karl Denninger wrote: > I believe I have found a rather serious MMAP problem in -CURRENT. > > Diablo (the news system) is the test case; with MMAP enabled it will randomly > write exactly one block (512 bytes) of zeros into the article spool files > rather than the proper data - its almost like an update via MMAP isn't I have seen an extremely similar problem, both on 2.2.6 and -current, with INN 2.0 configured to use MMAP for the active file. It is fairly easy to reproduce by doing a "ctlinnd newgroup". After that, a bunch of zeroes appears in the active file. I haven't bothered investigating the problem for lack of time because configuring INN to use read() just works and because I wasn't sure it was a FreeBSD problem, but I'm ready to do any testing I can to help fix this. -- Pierre.Beyssac@hsc.fr To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message