From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id CFD72138626 for ; Wed, 23 Jan 2013 16:11:40 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id B0A3821C0E0; Wed, 23 Jan 2013 16:11:25 +0000 (UTC) Received: from mail-oa0-f50.google.com (mail-oa0-f50.google.com [209.85.219.50]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 12A3821C06D for ; Wed, 23 Jan 2013 16:11:23 +0000 (UTC) Received: by mail-oa0-f50.google.com with SMTP id n16so8492353oag.23 for ; Wed, 23 Jan 2013 08:11:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:content-type; bh=js9mXwplUCbKP/XBc6g2jAXOxbrKfH+apGiPfmGzzY0=; b=FCA+aG4GAgomkW+BO+d6gixfsJamFuJqDJaBiWC6Y/oP47mom7IF8zi5ISolGIdrAJ 36Rpzhc0Latjb86A81RKrPibql6oH2MldTy7/1SJs5gqwQIJ+Mnl2TPaA9v1Fn8my2jT kcQeFLL6uuWfASZ9UQwziPHExEhQKyu6BvDj7g2+qE0j2SrT6lcgFF1GUixkG0HJOckS uzYQ0RYo9Aa3g7ORGjmy/CE2PQnf5zNzz/vVSRZiucu9VLbgK7cPhGqxJSAg6LLnwRfk M9DyHlMDdB3jSvMD1p6BQx5h18VQh5U6APET9hCzKtWiDuUOLwmTVpGTxm2tSWGHmidT KtcQ== Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 X-Received: by 10.60.12.103 with SMTP id x7mr1455509oeb.56.1358957483119; Wed, 23 Jan 2013 08:11:23 -0800 (PST) Received: by 10.76.20.243 with HTTP; Wed, 23 Jan 2013 08:11:23 -0800 (PST) In-Reply-To: <51000AA9.1050603@nileshgr.com> References: <51000735.3060103@nileshgr.com> <51000AA9.1050603@nileshgr.com> Date: Wed, 23 Jan 2013 11:11:23 -0500 Message-ID: Subject: Re: [gentoo-user] libv8 segfault From: Michael Mol To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 X-Archives-Salt: 693de9bc-0b0c-4610-b5c7-abf3d1f51fdd X-Archives-Hash: a454acfc956adce7e078a468f5f08907 On Wed, Jan 23, 2013 at 11:07 AM, Nilesh Govindrajan wrote: > On Wednesday 23 January 2013 09:29:22 PM IST, Michael Mol wrote: >> On Wed, Jan 23, 2013 at 10:52 AM, Nilesh Govindrajan wrote: >>> I tried compiling all versions of chromium (-O3, but it always worked >>> previously) & v8 (tried -O3 & -O2 too) >>> but it always segfaults when I try to open the settings page. >>> >>> CrRendererMain[6059]: segfault at 500000000 ip 00007f0d0834970c sp >>> 00007fff71d91a60 error 4 in libv8.so.3.15.11[7f0d08181000+45d000] >>> >>> Quite interestingly, the binary version of chrome works without hitches, >>> which I don't want to run because I'm a little paranoid about it ;-) >>> And that also means that there is no hardware fault. >>> >>> dev-lang/v8-3.15.11.5 >>> www-client/chromium-24.0.1312.56 (I'm at present using the google chrome >>> beta, but chromium 25 doesn't work either). >>> >>> Flags: >>> CFLAGS="-O3 -march=core2 -mtune=core2 -msse -msse2 -mssse3 -mmmx -pipe" >>> CXXFLAGS="${CFLAGS}" >>> LDFLAGS="-Wl,-O1 -Wl,--as-needed" >>> >>> Just replace that O3 with O2 for v8. >>> >>> Anybody knows what's going on here? >> >> What USE flags are enabled for chromium? You haven't specified that >> you're using the custom-cflags USE flag, so whatever's in your global >> CFLAGS setting is largely irrelevant. >> >> Also, you don't need to specify --as-needed; that's default, now. I >> don't know what those other flags are doing. >> >> Start with revdep-rebuild, see if that fixes it. If not, you probably >> ought to re-emerge chromium and its direct dependencies. Given your >> recent experience with overclocking and the rather correct warnings >> about silent data corruption, you may need to re-emerge a lot more >> than that. >> >> -- >> :wq >> > > I didn't merge anything while I was playing with overclocking. > custom-cflags is enabled. > I found the LDFLAGS on Gentoo Wiki as safe LDFLAGS for optimal > performance. Well, then that wiki page is out of date. :) -- :wq