From owner-svn-src-all@FreeBSD.ORG Fri Apr 24 22:05:13 2015 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 74873791; Fri, 24 Apr 2015 22:05:13 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 6471119CA; Fri, 24 Apr 2015 22:05:13 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t3OM5D7Y051598; Fri, 24 Apr 2015 22:05:13 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t3OM5D3J051597; Fri, 24 Apr 2015 22:05:13 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201504242205.t3OM5D3J051597@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Fri, 24 Apr 2015 22:05:13 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r281953 - head/sys/kern X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Apr 2015 22:05:13 -0000 Author: kib Date: Fri Apr 24 22:05:12 2015 New Revision: 281953 URL: https://svnweb.freebsd.org/changeset/base/281953 Log: Use correct length for sparse uiomove(). It must be the clipped to the page size, len is the total transfer length, which may be larger than zero_region. Reported and tested by: clusteradm (gjb) Sponsored by: The FreeBSD Foundation X-MFC-With: r281442 Modified: head/sys/kern/uipc_shm.c Modified: head/sys/kern/uipc_shm.c ============================================================================== --- head/sys/kern/uipc_shm.c Fri Apr 24 22:04:59 2015 (r281952) +++ head/sys/kern/uipc_shm.c Fri Apr 24 22:05:12 2015 (r281953) @@ -170,7 +170,7 @@ uiomove_object_page(vm_object_t obj, siz if (uio->uio_rw == UIO_READ && vm_page_lookup(obj, idx) == NULL && !vm_pager_has_page(obj, idx, NULL, NULL)) { VM_OBJECT_WUNLOCK(obj); - return (uiomove(__DECONST(void *, zero_region), len, uio)); + return (uiomove(__DECONST(void *, zero_region), tlen, uio)); } /*