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[2620:137:e000::1:20]) by mx.google.com with ESMTP id lw14-20020a17090b180e00b002135a4d80d7si7642363pjb.188.2022.12.02.01.21.07; Fri, 02 Dec 2022 01:21:18 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=cUlgBrg0; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232576AbiLBInv (ORCPT + 83 others); Fri, 2 Dec 2022 03:43:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232547AbiLBIns (ORCPT ); Fri, 2 Dec 2022 03:43:48 -0500 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B2E88B181 for ; Fri, 2 Dec 2022 00:43:47 -0800 (PST) Received: by mail-lf1-x134.google.com with SMTP id cf42so605811lfb.1 for ; Fri, 02 Dec 2022 00:43:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:message-id:subject:cc:to:from :date:from:to:cc:subject:date:message-id:reply-to; bh=xJToihEiUcVXwRAJ1c8msUWQel23R1+948Yhrr3xtog=; b=cUlgBrg0ISSRUvPbqeZjNQjMjhLhDJLZguXc/lAtfPdkcsu8KiQlKbafXFAAnH7Ogb IWjzskhipn2EV20shhFpJjlU8EteLt7TUKCbROAyOLODeTq8K4GNioI8CttscvInracs hfqNaQH3kxIbJA6wrMUwWBvp6ygD/jXh7O9ciGFrn9UyK0CuuGy6/JQjwHD9AgsTyJC8 5jE2Ll159diSgKE/4xXNChspr47HjweV1zX1Z4le5zxU9kJ2WWBpaavQ9Bkj+yO9fTqZ ub8jGNKnOJzDH9MC3akfJOhSzsaorUyZFFZywOnkqsE3mE+v42eMi+yez74NFgxYcL+t uNGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=mime-version:references:in-reply-to:message-id:subject:cc:to:from :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=xJToihEiUcVXwRAJ1c8msUWQel23R1+948Yhrr3xtog=; b=NGa3hJnmT2hT96EUWSGjRlDifexYUqfum8QmxYNqEEaQq9L//r2aSDYjdeOpMGg5dE yhMGQJkJkvGi0HN9qngxLbFNibkeHr9qpfq9FMMOMZ30knsKICQSZSYTN2TYlbGGJ1Z0 gLXAB5y0mIwf+NDd79sSW+KKO3u3UOUk8Yz/GhoaYOH7v9qC0ib7LLfbTQq8EeQ3jCS4 Tlfalfe8yWl7t5PWFEEOwGC1ehBGFcWcO+AHZ9D7pWMh/geW0yuIoHZDB2+VW6ZL4u60 VTQ2ywYRGPSJNWQRUQZLyOyKu/qd3xjG5hpWP96DAjuiIo9Jd8HvIiLdLvdKQXQJ3LP9 M9EQ== X-Gm-Message-State: ANoB5pnucZlC/QFBhXEfrXLR3Fz5JmiS8yX+NoJoqTzRwg3D2WxwakvV Q0Gs6pkOU0/G43TTZYBl+Pc= X-Received: by 2002:a05:6512:34c6:b0:4a4:71b5:cbd3 with SMTP id w6-20020a05651234c600b004a471b5cbd3mr24862012lfr.518.1669970625631; Fri, 02 Dec 2022 00:43:45 -0800 (PST) Received: from eldfell ([194.136.85.206]) by smtp.gmail.com with ESMTPSA id v13-20020ac258ed000000b004b48c977d8dsm948934lfo.125.2022.12.02.00.43.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Dec 2022 00:43:45 -0800 (PST) Date: Fri, 2 Dec 2022 10:43:34 +0200 From: Pekka Paalanen To: Steven Rostedt Cc: LKML , Masami Hiramatsu , Thomas Gleixner , Peter Zijlstra , x86@kernel.org, Karol Herbst Subject: Re: [BUG] lockdep splat using mmio tracer Message-ID: <20221202104334.649dacdf@eldfell> In-Reply-To: <20221201213126.620b7dd3@gandalf.local.home> References: <20221201213126.620b7dd3@gandalf.local.home> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/Nz+X/b9TCsnTswyM0Ms.rQv"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/Nz+X/b9TCsnTswyM0Ms.rQv Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Thu, 1 Dec 2022 21:31:26 -0500 Steven Rostedt wrote: > I hit this while testing ftrace on an x86 32 bit VM (I've just started > converting my tests to run on a VM, which is find new found bugs). Hi Steven, sorry, I don't think I know anymore how mmiotrace works. Surely the kernel has changed in those more than 10 years since I last looked at it. If I'm still listed as a contact for mmiotrace somewhere, maybe it would be best to drop me? I don't mind the emails, it's nice to see people hit or touch it, but I'm afraid I can't help. 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