From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752569AbbCTOr3 (ORCPT ); Fri, 20 Mar 2015 10:47:29 -0400 Received: from mail-la0-f44.google.com ([209.85.215.44]:35698 "EHLO mail-la0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751773AbbCTOrY (ORCPT ); Fri, 20 Mar 2015 10:47:24 -0400 Date: Fri, 20 Mar 2015 17:47:20 +0300 From: Cyrill Gorcunov To: Oleg Nesterov Cc: Denys Vlasenko , Andy Lutomirski , Pavel Emelyanov , Andrey Wagin , Andy Lutomirski , Ingo Molnar , Andi Kleen , "H. Peter Anvin" , Al Viro , X86 ML , LKML , Linus Torvalds , Borislav Petkov , Pavel Emelyanov Subject: Re: [PATCH v3 1/2] x86_64,signal: Fix SS handling for signals delivered to 64-bit programs Message-ID: <20150320144720.GW27066@moon> References: <20150318200247.GA6355@redhat.com> <5509EF82.60900@parallels.com> <20150319073512.GA27066@moon> <20150320115622.GR27066@moon> <20150320120419.GS27066@moon> <20150320140738.GA12509@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150320140738.GA12509@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 20, 2015 at 03:07:38PM +0100, Oleg Nesterov wrote: > > Another downside (to me) is that this special case can help, but only > "by accident". > > For example, criu has ->ss = 0, but it was not initialized explicitly. > > But as I said, I won't argue. OK, after talking to Pavel -- it's fine to require new criu version for new kernels, thus lets leave kernel pure without this special hack, moreover now we have a fix from Oleg merged into criu so we should be safe. Thanks a lot for all comments!