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 X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1CF22C10F00 for ; Fri, 22 Feb 2019 06:25:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E04D82086C for ; Fri, 22 Feb 2019 06:25:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550816756; bh=EwsQ6jfPGwWFXO3GdFKenTnMSbXqaGVo+el3yUt0tpQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=kZchPmebkaPmMNMAelVvzlcztrWcdpJtSKTvr1Dxy7vv1SqNT8F0nWqmkt9CgJPeW z7qMaQtkG+vlRsDANmc/DkwK0ffg3erDWTBkXceMs5Thehc7VWJtFWqnGa7D9mLs5i cBysFWrV/0COttOkvfFsLsvbwNJQaktdqfByefxU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726117AbfBVGZy (ORCPT ); Fri, 22 Feb 2019 01:25:54 -0500 Received: from mail.kernel.org ([198.145.29.99]:58202 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725868AbfBVGZy (ORCPT ); Fri, 22 Feb 2019 01:25:54 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BBD1C207E0; Fri, 22 Feb 2019 06:25:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550816753; bh=EwsQ6jfPGwWFXO3GdFKenTnMSbXqaGVo+el3yUt0tpQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=CsnCtAIt4TgTNziJtE8F8FpnSutz7p5WeAZdPs6NPGUfmhRKYKBdzFmEM85A7fFEF hjhV2L/nh8g38KiTw7IWlIBqEiWoEm10GwZRMaTtmFvWw5zhTrV/afrmHWPsElCWIP uZbAc2fyOBBMPF2gUPHn1CvlC/ObajpTaWRUrVng= Date: Fri, 22 Feb 2019 07:25:50 +0100 From: Greg Kroah-Hartman To: Mathieu Desnoyers Cc: "Russell King, ARM Linux" , Arnd Bergmann , Linus Torvalds , Masami Hiramatsu , Kees Cook , William Cohen , stable , Laura Abbott , linux-kernel , lttng , Thomas Gleixner Subject: Re: BUG: optimized kprobes illegal instructions in v4.19 stable kernels Message-ID: <20190222062550.GA3780@kroah.com> References: <342740659.2887.1549307721609.JavaMail.zimbra@efficios.com> <20190206134115.baba291e33022a2f6b6ae5f8@kernel.org> <20190218122631.GE30260@kroah.com> <843587666.153.1550501735273.JavaMail.zimbra@efficios.com> <1829800918.4014.1550779377803.JavaMail.zimbra@efficios.com> <20190222001042.hm6j5h4hmfpwarzr@shell.armlinux.org.uk> <622813157.4561.1550794631564.JavaMail.zimbra@efficios.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <622813157.4561.1550794631564.JavaMail.zimbra@efficios.com> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 21, 2019 at 07:17:11PM -0500, Mathieu Desnoyers wrote: > ----- On Feb 21, 2019, at 7:10 PM, Russell King, ARM Linux linux@armlinux.org.uk wrote: > > > On Thu, Feb 21, 2019 at 03:02:57PM -0500, Mathieu Desnoyers wrote: > >> Hi Arnd, Russell, Linus, > >> > >> Can we ensure the arm32 kprobes fix I submitted gets upstream before 5.0 final ? > >> It takes care of an illegal instruction issue with optimized kprobes on arm32. > >> > >> Here is the current state of default kprobes configuration on arm32: > >> using them will trigger illegal instruction OOPS on v5.0-rc7, 4.19.24, > >> v4.14.102. > >> > >> My fix is in "accepted" state in the arm patch tracking system: > >> > >> https://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=8834/1 > >> > >> Should I send it directly to Linus as well ? > > > > Accepted means it's in my tree pending to be sent to Linus. It should > > now be in mainline. Have you checked? > > Hrm, why did I not see it earlier today... it's embarrassing. > > It's there indeed, all is good! > > Greg, you should be able to pick it into the stable kernels now. What is the git commit id of it? thanks, greg k-h