From owner-freebsd-hackers@FreeBSD.ORG Sun Nov 8 02:19:14 2009 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DFAA8106566C for ; Sun, 8 Nov 2009 02:19:14 +0000 (UTC) (envelope-from a_best01@uni-muenster.de) Received: from zivm-exrelay2.uni-muenster.de (ZIVM-EXRELAY2.UNI-MUENSTER.DE [128.176.192.15]) by mx1.freebsd.org (Postfix) with ESMTP id 70AD08FC08 for ; Sun, 8 Nov 2009 02:19:13 +0000 (UTC) X-IronPort-AV: E=Sophos;i="4.44,702,1249250400"; d="txt'?scan'208";a="228374111" Received: from zivmaildisp1.uni-muenster.de (HELO ZIVMAILUSER01.UNI-MUENSTER.DE) ([128.176.188.85]) by zivm-relay2.uni-muenster.de with ESMTP; 08 Nov 2009 03:19:12 +0100 Received: by ZIVMAILUSER01.UNI-MUENSTER.DE (Postfix, from userid 149459) id AB4B61B0766; Sun, 8 Nov 2009 03:19:12 +0100 (CET) Date: Sun, 08 Nov 2009 03:19:05 +0100 (CET) From: Alexander Best Sender: Organization: Westfaelische Wilhelms-Universitaet Muenster To: Message-ID: MIME-Version: 1.0 Content-Type: multipart/mixed; boundary=+permail-20091108021905f0889e8400001ff7-a_best01+ Cc: Alan Cox Subject: mmap(2) with MAP_ANON honouring offset although it shouldn't X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Nov 2009 02:19:15 -0000 This is a MIME encoded multipart message. --+permail-20091108021905f0889e8400001ff7-a_best01+ Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit no problem. i've sent the final patch as followup to kern/71258 and also attached it to this message. to make it short. what's being changed by the patch: 1) if MAP_ANON is defined and offset !=0 ====> return EINVAL 2) if MAP_STACK is defined and offset !=0 ====> offset = 0 would be great if you could have a look at the patch if you've got a spare minute. cheers. alex --+permail-20091108021905f0889e8400001ff7-a_best01+ Content-Type: text/plain Content-Transfer-Encoding: Base64 Content-Disposition: attachment; filename="vmmmap.c.patch.txt" SW5kZXg6IHN5cy92bS92bV9tbWFwLmMKPT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gc3lzL3ZtL3ZtX21tYXAuYwko cmV2aXNpb24gMTk5MDE2KQorKysgc3lzL3ZtL3ZtX21tYXAuYwkod29ya2luZyBjb3B5KQpAQCAt MjQ0LDYgKzI0NCw5IEBACiAJCXBvcyA9IDA7CiAJfQogCisJaWYgKGZsYWdzICYgTUFQX0FOT04g JiYgcG9zICE9IDApCisJCXJldHVybiAoRUlOVkFMKTsKKwogCS8qCiAJICogQWxpZ24gdGhlIGZp bGUgcG9zaXRpb24gdG8gYSBwYWdlIGJvdW5kYXJ5LAogCSAqIGFuZCBzYXZlIGl0cyBwYWdlIG9m ZnNldCBjb21wb25lbnQuCkBAIC0zMDAsNyArMzAzLDYgQEAKIAkJaGFuZGxlID0gTlVMTDsKIAkJ aGFuZGxlX3R5cGUgPSBPQkpUX0RFRkFVTFQ7CiAJCW1heHByb3QgPSBWTV9QUk9UX0FMTDsKLQkJ cG9zID0gMDsKIAl9IGVsc2UgewogCQkvKgogCQkgKiBNYXBwaW5nIGZpbGUsIGdldCBmcCBmb3Ig dmFsaWRhdGlvbiBhbmQK --+permail-20091108021905f0889e8400001ff7-a_best01+--