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=-3.8 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,URIBL_BLOCKED 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 8F93CC4741F for ; Fri, 30 Oct 2020 08:49:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 292E822210 for ; Fri, 30 Oct 2020 08:49:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="d1DeONvA" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726072AbgJ3ItY (ORCPT ); Fri, 30 Oct 2020 04:49:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725784AbgJ3ItX (ORCPT ); Fri, 30 Oct 2020 04:49:23 -0400 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9AF34C0613CF for ; Fri, 30 Oct 2020 01:49:23 -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=mdVq7rzTsraODx24OzZq2uGF+1g27vjQIcCh6upVV/U=; b=d1DeONvATkDZbjHadQuY9+1zox FoWjKBN2l7f5hoRQqt18kU1gEubPYPYlleKuFVUiRm+a7FlU14DnVNK14Epa4bKQjzfhrZT69j71d 0SWwV7AkejkWS5tSfCkKzHKT6RUQWbTiKHPEvDVNaYjtCPEieps4bY2Q3ZWSesZBeu9Qr9ymJUwUP m8cvXWUsGOZc2SPNspRBwi/fSOKwMkSvjp3yAhrDlcgPEah8prWa6J5tN25u/ZCsfKXb+kKJ4V9rs UqsnPtcAXbskzFW9v3ZsHdPdrmdoGP10nnHmzCOgQQRRrfsFyr7SHj0Mh9S9MGk5kG3c3OHzeXK5p Y90kgg+Q==; 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 1kYQ5z-0008O1-HI; Fri, 30 Oct 2020 08:49:15 +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 97027300446; Fri, 30 Oct 2020 09:49:12 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 4E98420DCC48D; Fri, 30 Oct 2020 09:49:12 +0100 (CET) Date: Fri, 30 Oct 2020 09:49:12 +0100 From: Peter Zijlstra To: Steven Rostedt Cc: syzbot , linux-kernel@vger.kernel.org, mingo@redhat.com, syzkaller-bugs@googlegroups.com Subject: Re: BUG: using __this_cpu_read() in preemptible code in __bad_area_nosemaphore Message-ID: <20201030084912.GY2628@hirez.programming.kicks-ass.net> References: <0000000000000cd2e305b2d9a9db@google.com> <20201029225106.0ce492a4@oasis.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201029225106.0ce492a4@oasis.local.home> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 29, 2020 at 10:51:06PM -0400, Steven Rostedt wrote: > On Thu, 29 Oct 2020 18:53:17 -0700 > syzbot wrote: > > > Hello, > > > > syzbot found the following issue on: > > Didn't Peter already send a fix for this? Is it not upstream yet? Hurmph, it's been in tip/locking/urgent for 8 days, but does not indeed seem to have made it into Linus' tee yet.