From owner-freebsd-bugs@FreeBSD.ORG Mon Nov 19 11:50:02 2007 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F1C8716A469 for ; Mon, 19 Nov 2007 11:50:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id D6C7913C447 for ; Mon, 19 Nov 2007 11:50:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.1/8.14.1) with ESMTP id lAJBo2OB045978 for ; Mon, 19 Nov 2007 11:50:02 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.1/8.14.1/Submit) id lAJBo2wL045977; Mon, 19 Nov 2007 11:50:02 GMT (envelope-from gnats) Resent-Date: Mon, 19 Nov 2007 11:50:02 GMT Resent-Message-Id: <200711191150.lAJBo2wL045977@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, Heikki Suonsivu Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 239E716A41B for ; Mon, 19 Nov 2007 11:46:11 +0000 (UTC) (envelope-from hsu@joutseno.wlansystems.com) Received: from joutseno.wlansystems.com (joutseno.wlansystems.com [212.16.100.99]) by mx1.freebsd.org (Postfix) with ESMTP id 9A57D13C469 for ; Mon, 19 Nov 2007 11:46:10 +0000 (UTC) (envelope-from hsu@joutseno.wlansystems.com) Received: from joutseno.wlansystems.com (localhost [127.0.0.1]) by joutseno.wlansystems.com (8.14.2/8.14.2) with ESMTP id lAJ5BGi5020852 for ; Mon, 19 Nov 2007 07:11:16 +0200 (EET) (envelope-from hsu@joutseno.wlansystems.com) Received: (from hsu@localhost) by joutseno.wlansystems.com (8.14.2/8.14.2/Submit) id lAJ5BFdh020851; Mon, 19 Nov 2007 07:11:15 +0200 (EET) (envelope-from hsu) Message-Id: <200711190511.lAJ5BFdh020851@joutseno.wlansystems.com> Date: Mon, 19 Nov 2007 07:11:15 +0200 (EET) From: Heikki Suonsivu To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/118121: RELENG_7 kernel compile fails with -Os X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Heikki Suonsivu List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Nov 2007 11:50:03 -0000 >Number: 118121 >Category: kern >Synopsis: RELENG_7 kernel compile fails with -Os >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Nov 19 11:50:02 UTC 2007 >Closed-Date: >Last-Modified: >Originator: Heikki Suonsivu >Release: FreeBSD 7.0-BETA3 i386 >Organization: bbnetworks.net >Environment: System: FreeBSD joutseno.wlansystems.com 7.0-BETA3 FreeBSD 7.0-BETA3 #3: Sun Nov 18 02:20:02 EET 2007 hsu@joutseno.wlansystems.com:/usr/obj/usr/src/sys/GENERIC i386 Anything with RELENG_7, if compiling GENERIC with -Os >Description: When compiling kernel with -Os, gcc apparently finds some new possible warnings (possible uninitialized variables, etc). This exits kernel compile. -O2 does not trigger these. scsi_sa and scsi_ses were among the offending files, but there may be more. >How-To-Repeat: build kernel with COPTFLAGS set to -Os -g -pipe >Fix: The offending code may need further checks. RELENG_6 did not have these warnings, so they apparently are related to new code in 7.x. Workaround is to use -O2 or -O >Release-Note: >Audit-Trail: >Unformatted: