Received: by 2002:a05:6a10:a852:0:0:0:0 with SMTP id d18csp3726926pxy; Tue, 4 May 2021 08:36:37 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzlTpsLvSFluZpcBefR0c7O2FXTlZLwsxkhZrc5k0tAvOm8xfIZWeKY80W8cm8nPCn272o8 X-Received: by 2002:a17:90a:fe01:: with SMTP id ck1mr3607419pjb.146.1620142597084; Tue, 04 May 2021 08:36:37 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1620142597; cv=none; d=google.com; s=arc-20160816; b=eCAedFMpokxbFWgKuwvVGZy4sJ4MLy0RAcI53bzXi84Fof9IanjXO3rNR0JDXpLRjo SluckXB8QU3mIQQKu4OIqqDRTDaMqZzbFkC0rGvP8SSUhCxKFEbl2P1Fluj39Ng+Vtzr hr8vCGMgGqh9bzuGA6fZxCdSW2iHAt3N4I4d/II2HdML+Wv0ru3ao0l6aBEPj4OwR0R/ XUuGiKSsPRjJmA8yex/lc+/45ExVY0uwlzgntUC6MMM5C3J2O07ba0Iv+royy3HUUg6A RDuierLpo0LCsWilthH4zgXNOfpUMW0rvpxOWvKgYejuyjd/KdTfFtiRecNzxnaxO1Oh 5dOw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=9YS8rpRnHR92Rd5/l+wwPCakLldpm8xdN3Lf3MsyQh8=; b=iYM+E2I/xNrU6nLhxkbMRG3NZXvoUlbXLnJ1HDcVyKSqma9gawWY5aVIt39jpz/GmK 8YisskATVTlNLhz41MClSNnIo2EYrwQ4KT7ZQtipbt4bQHjBrto3SmaFHofE86URNRWr Mm/3Bbk8fQolmR9Qau+cK/CXfAhWseofbsrAxnRHjc6BZrUhUmbLV+8P9SlqUo2VYyeu lVvFiyqKLkSQwo8q8N+VxpOhrJ62W7MsLaPARwtmDm8WoknkM2/YI9n6GiZq4KbFAIuT agLWRUdBY/Mdy35iwNjIaaR4iig9pNs3KasBblEqm9+s+cBr/1I+JLpT1VPIVt8fVkLF YrNA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=NHbqzZHE; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id t24si473560pgi.360.2021.05.04.08.36.23; Tue, 04 May 2021 08:36:37 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=NHbqzZHE; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230406AbhEDPgQ (ORCPT + 99 others); Tue, 4 May 2021 11:36:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44666 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230112AbhEDPgQ (ORCPT ); Tue, 4 May 2021 11:36:16 -0400 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8DB1DC061574; Tue, 4 May 2021 08:35:21 -0700 (PDT) Received: from zn.tnic (p200300ec2f0c8400351ab2c4e1964d4a.dip0.t-ipconnect.de [IPv6:2003:ec:2f0c:8400:351a:b2c4:e196:4d4a]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 519341EC050F; Tue, 4 May 2021 17:35:18 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1620142518; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=9YS8rpRnHR92Rd5/l+wwPCakLldpm8xdN3Lf3MsyQh8=; b=NHbqzZHE9oHZ2K47IzFD2XP14aByJ1lvs5bM7HgyFKtKbiwF1K79ObjEsABzG4WJrebBfz EP92t1w0sl6vKwjOyFHBQpVp+FWSYh9BRi/PGWLg9s/A7TB8qsgpwb4eTBwOPtuKCLmA31 Dz9/uaTfrC7Ad3jrnULYWcHldJ7cUnQ= Date: Tue, 4 May 2021 17:35:16 +0200 From: Borislav Petkov To: Peter Zijlstra Cc: Linus Torvalds , Andy Lutomirski , Thomas Gleixner , Stefan Metzmacher , Jens Axboe , Linux Kernel Mailing List , io-uring , the arch/x86 maintainers , linux-toolchains@vger.kernel.org Subject: Re: [PATCH] io_thread/x86: don't reset 'cs', 'ss', 'ds' and 'es' registers for io_threads Message-ID: References: <8735v3ex3h.ffs@nanos.tec.linutronix.de> <3C41339D-29A2-4AB1-958F-19DB0A92D8D7@amacapital.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 04, 2021 at 10:39:23AM +0200, Peter Zijlstra wrote: > Anybody on toolchains that can help get GDB fixed? In the meantime, Tom is looking at fixing this, in case people wanna try gdb patches or give him a test case or so... https://sourceware.org/bugzilla/show_bug.cgi?id=27822 Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette