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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 C1AEEC352A2 for ; Fri, 7 Feb 2020 10:27:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 967642082E for ; Fri, 7 Feb 2020 10:27:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="TexuxSH9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727032AbgBGK1P (ORCPT ); Fri, 7 Feb 2020 05:27:15 -0500 Received: from merlin.infradead.org ([205.233.59.134]:43524 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726798AbgBGK1P (ORCPT ); Fri, 7 Feb 2020 05:27:15 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=L3BlihRpV2iRLC6YY8WIGJCu0AhpCAbYwMvQBNO6mS0=; b=TexuxSH9agtY/5ee2O4MoaKYeN 583CwsTzpUTyGYS1puz5eeDqsjFT4EoBEFIL9ehVekKcUX/dRvL4hmZY9nB07VxbBPSxaqKePvDqF w2YEQJIRq4rfn594HQdCGkZY7IPGTHO/0SsYNLLvzhl+AfOXlCAACcbGt7KN4h4NA8nrqdPnV0afw Qv2zUyrcSFfk2UmHFrg5l3caflmW20yszfEWQXGBvDBCcTR9E7sy+uJtXypPQ1SfnrJMPhsWV2dTo 16Lu4zh9GfhutLTVO7G1ZWw4agBQiV4LMR0wkE76vJSmEbkboXl5S9MEmGPJLhbjQ+BJ+RsxLQ6ti 2LHaM6Ag==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1j00qf-0005BO-Ny; Fri, 07 Feb 2020 10:26:57 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 694D430258F; Fri, 7 Feb 2020 11:25:09 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 3DC162B834C29; Fri, 7 Feb 2020 11:26:56 +0100 (CET) Date: Fri, 7 Feb 2020 11:26:56 +0100 From: Peter Zijlstra To: Dmitry Osipenko Cc: linux-kernel@vger.kernel.org, tip-bot2 for Peter Zijlstra , linux-tip-commits@vger.kernel.org, Will Deacon , Thierry Reding , Jon Hunter , Andy Lutomirski , Borislav Petkov , Brian Gerst , Denys Vlasenko , "H. Peter Anvin" , Linus Torvalds , Mark Rutland , Thomas Gleixner , ard.biesheuvel@linaro.org, james.morse@arm.com, rabin@rab.in, Ingo Molnar , x86 , "linux-tegra@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [tip: core/kprobes] arm/ftrace: Use __patch_text() Message-ID: <20200207102656.GS14946@hirez.programming.kicks-ass.net> References: <20191113092636.GG4131@hirez.programming.kicks-ass.net> <157544841563.21853.2859696202562513480.tip-bot2@tip-bot2> <10cbfd9e-2f1f-0a0c-0160-afe6c2ccbebd@gmail.com> <20200207101747.GE14914@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200207101747.GE14914@hirez.programming.kicks-ass.net> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 07, 2020 at 11:17:47AM +0100, Peter Zijlstra wrote: > Is that crash with FTRACE=y or =n ? > > This really isn't making much sense to me, Will, Mark, any clues? Does the initial patch: https://lkml.kernel.org/r/20191111132458.220458362@infradead.org work, or does it crash the exact same?