From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E85FDC64EC7 for ; Tue, 28 Feb 2023 22:57:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229619AbjB1W5s (ORCPT ); Tue, 28 Feb 2023 17:57:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229510AbjB1W5r (ORCPT ); Tue, 28 Feb 2023 17:57:47 -0500 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [IPv6:2a03:a000:7:0:5054:ff:fe1c:15ff]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2092F3644D; Tue, 28 Feb 2023 14:57:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=HhC+CeDXQ7gPGIdMC9D+ydrQrRw7f5eYoVKO6gIUIQU=; b=b+bU0BwLdSlEPuAWTJxKPFliQs fF0uc0NeMyOv5FkV5ROv7Nzl5plJHwZ0DpMLWxztZCacserxJOGR6R9ne9u87Z89xpJj5bfxZrBal Fq+acpGv0JBaQ0OPzqoRWy6MsLcnK7QsuN48gwji5+uwNBNH+MVhuGyI8qjJ2dEaZ8JEwQpKrBBDW RfxudAhIyUSJrFpBZ+XUi2Phw3HJraptnTkUzSHlECOqeQWeCQCmXk1CiT8fmnAvEzUjS5l5FM+I/ V4H0ERsZsIj5Y9U2fj9QnzFHNXjoGeqieL2VI9/VmCgRcEklVJ1Tq9O/nIE0GwWAtPEky9X0wv1pY 6odKM55g==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.96 #2 (Red Hat Linux)) id 1pX8uk-00CwCe-1I; Tue, 28 Feb 2023 22:57:42 +0000 Date: Tue, 28 Feb 2023 22:57:42 +0000 From: Al Viro To: Helge Deller Cc: linux-arch@vger.kernel.org, linux-parisc@vger.kernel.org Subject: Re: [PATCH 08/10] parisc: fix livelock in uaccess Message-ID: References: <84b1c2e4-c096-ed19-9701-472b54a4890c@gmx.de> <39436c4d-f5a2-edd5-24ba-19e4812ea364@gmx.de> <215b226f-7ffd-70d8-4e7b-85b37f288062@gmx.de> <2646c13f-33b8-1047-7cfe-bf7e394344b6@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2646c13f-33b8-1047-7cfe-bf7e394344b6@gmx.de> Sender: Al Viro Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On Tue, Feb 28, 2023 at 09:22:31PM +0100, Helge Deller wrote: > Now I can confirm (with the adjusted reproducer), that your patch > allows to kill the process with SIGKILL, while without your patch > it's not possibe to kill the process at all. > I've tested with a 32- and 64-bit parisc kernel. > > You may add > Tested-by: Helge Deller # parisc > to the patch. > > If you want me to take the patch (with the warning regarding missing msg variable fixed) > through the parisc tree, please let me know. What message do you prefer there? It matters only for the case when we are hitting an oops there, but...