From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266836AbUGLOF7 (ORCPT ); Mon, 12 Jul 2004 10:05:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266839AbUGLOF7 (ORCPT ); Mon, 12 Jul 2004 10:05:59 -0400 Received: from krusty.dt.e-technik.Uni-Dortmund.DE ([129.217.163.1]:19650 "EHLO mail.dt.e-technik.uni-dortmund.de") by vger.kernel.org with ESMTP id S266836AbUGLOF4 (ORCPT ); Mon, 12 Jul 2004 10:05:56 -0400 Date: Mon, 12 Jul 2004 16:05:51 +0200 From: Matthias Andree To: Linux-Kernel mailing list Subject: Re: post 2.6.7 BK change breaks Java? Message-ID: <20040712140551.GA7264@merlin.emma.line.org> Mail-Followup-To: Linux-Kernel mailing list References: <40EEB1B2.7000800@kolivas.org> <8A43C34093B3D5119F7D0004AC56F4BC082C7F9D@difpst1a.dif.dk> <40F20372.9000205@quark.didntduck.org> <40F20C23.9050705@quark.didntduck.org> <40F28628.2030303@quark.didntduck.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <40F28628.2030303@quark.didntduck.org> User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 12 Jul 2004, Brian Gerst wrote: [a hell of a quote that got snipped] > >gcc 3.4.0 > > > >I got a patch from Linus yesterday that seems to fix it nicely on top of > >2.6.8-rc1. I guess he has his reasons for not CC'ing it to the list, but > >I've given him feedback on my testing of it, so I hope it'll surface as > >soon as he's happy with it. > > I see Linus commited a changeset that avoids a tailcall from this > function, which messes up the stack if CONFIG_REGPARM=n. Specifically, > it clobbers %edx in the pt_regs image: > > sys_sigaltstack: > movl 56(%esp), %eax > movl %eax, 12(%esp) > jmp do_sigaltstack After a BK pull and a rebuild, Java is well again. -- Matthias Andree Encrypted mail welcome: my GnuPG key ID is 0x052E7D95 (PGP/MIME preferred)