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=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 0C990C388F9 for ; Sat, 31 Oct 2020 11:25:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AF14C206E3 for ; Sat, 31 Oct 2020 11:25:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="cltkblME" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726913AbgJaLZj (ORCPT ); Sat, 31 Oct 2020 07:25:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726815AbgJaLZe (ORCPT ); Sat, 31 Oct 2020 07:25:34 -0400 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 892B3C0613D5 for ; Sat, 31 Oct 2020 04:25:33 -0700 (PDT) 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=7NmMeOYUyEgL87woHOXDY5bZ4hpO+mPHcbV5EnX6AxY=; b=cltkblME6Wfa1xTFOONDlgwbHC wIZFzyZgCNkXpxmcgiyhN93u+f4CLHCwBl5mWz3MXSZyllwib4kVlfNNgiBsZ8iDkfyr4OjB/2Qc8 zC6jABn7cBIoipMR8zeCmY/iQIuI7XkzF4TeNEGAsCP8NMPbDDg6ONRLmlYr+rd882Q0CQlLcM20A gAkgoUBvDfkQNNp3HfwmlA7zHLloIPrK0VEsqUBp/AOjb3jq61Sgs2ERhbkthLOy6pZZoj9upPCEA 1oD0Mnqiv0M7fKxD9oM87q5prH96Cq8PowkZ9/94Cj4RweCvyRg+bQ2dkTveXcdCct+sOWrJS1/zW 6wfiNDqQ==; 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 1kYp0l-0004JD-5m; Sat, 31 Oct 2020 11:25:31 +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 571EC30377D; Sat, 31 Oct 2020 12:25:28 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 3863E2BE225BB; Sat, 31 Oct 2020 12:25:28 +0100 (CET) Date: Sat, 31 Oct 2020 12:25:28 +0100 From: Peter Zijlstra To: Mike Galbraith Cc: lkml Subject: Re: ltp::mmap05 --> BUG: using __this_cpu_read() in preemptible Message-ID: <20201031112528.GV2594@hirez.programming.kicks-ass.net> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Mike, good to see you're enjoying retirement ;-) On Sat, Oct 31, 2020 at 06:52:40AM +0100, Mike Galbraith wrote: > [ 138.620544] BUG: using __this_cpu_read() in preemptible [00000000] code: mmap05/4858 > [ 138.620737] caller is lockdep_hardirqs_on_prepare+0x2f/0x1b0 Fix should already be in tip/locking/urgent.