Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:28688 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 80455 invoked by uid 1010); 5 Apr 2007 15:23:50 -0000 Delivered-To: ezmlm-scan-internals@lists.php.net Delivered-To: ezmlm-internals@lists.php.net Received: (qmail 80440 invoked from network); 5 Apr 2007 15:23:50 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 5 Apr 2007 15:23:50 -0000 Authentication-Results: pb1.pair.com header.from=rasmus@lerdorf.com; sender-id=unknown Authentication-Results: pb1.pair.com smtp.mail=rasmus@lerdorf.com; spf=permerror; sender-id=unknown Received-SPF: error (pb1.pair.com: domain lerdorf.com from 204.11.219.139 cause and error) X-PHP-List-Original-Sender: rasmus@lerdorf.com X-Host-Fingerprint: 204.11.219.139 mail.lerdorf.com Linux 2.5 (sometimes 2.4) (4) Received: from [204.11.219.139] ([204.11.219.139:56828] helo=lerdorf.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id 4E/9B-19248-58415164 for ; Thu, 05 Apr 2007 11:23:49 -0400 Received: from [192.168.200.104] (c-67-169-43-97.hsd1.ca.comcast.net [67.169.43.97]) (authenticated bits=0) by lerdorf.com (8.13.8/8.13.8/Debian-3) with ESMTP id l35FNkD3028286 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 5 Apr 2007 08:23:46 -0700 Message-ID: <46151481.9090809@lerdorf.com> Date: Thu, 05 Apr 2007 08:23:45 -0700 User-Agent: Thunderbird 1.5.0.10 (Macintosh/20070221) MIME-Version: 1.0 To: Ilia Alshanetsky CC: Matt Wilmas , internals@lists.php.net References: <007b01c77735$89410420$0201a8c0@pc1> <46148933.7030709@lerdorf.com> <646617A7-86A7-4E64-94CE-8E5D5766741A@prohost.org> In-Reply-To: <646617A7-86A7-4E64-94CE-8E5D5766741A@prohost.org> X-Enigmail-Version: 0.94.2.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.90.1/3021/Thu Apr 5 04:05:27 2007 on colo X-Virus-Status: Clean Subject: Re: [PHP-DEV] Build failure From: rasmus@lerdorf.com (Rasmus Lerdorf) Ilia Alshanetsky wrote: > Rasmus, > > Sorry for the delay in the reply. According to my tests on linux using > the sample script provided by the original bug reporter having no lock > causes a problem when the error message is >4k in length. In this case > multiple buffers are used and corruption can happen (it did on a dual > cpu machine with 10 error log writing threads running), which is why I > feel the lock is needed. Did you do this test before or after you condensed the fprintf calls into a single call? With multiple fprintf calls there would be a problem, but with a single one I don't see how it could possibly screw it up. -Rasmus