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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 648F6C54EBD for ; Fri, 13 Jan 2023 17:43:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229711AbjAMRn0 (ORCPT ); Fri, 13 Jan 2023 12:43:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229714AbjAMRnB (ORCPT ); Fri, 13 Jan 2023 12:43:01 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DF328B76F; Fri, 13 Jan 2023 09:29:25 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id B2973B8206B; Fri, 13 Jan 2023 17:29:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 35C65C433EF; Fri, 13 Jan 2023 17:29:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673630962; bh=wHTzxLTSWIWcmvmjm8HxsOOrxP/zpZaqZsO3pYaP3PQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=RfMMpuLL52GwyfuIE4Byu78vWrHe+aDNzSfAQpkJk1YS92uABw45T0K+vhzy7zAoC kVU20RfTNSxjkom8K97OOcrzd6kzJnTZABZn5wpzgcTbt2AItUZDdvfPp5zC68WQSt tX+BHKQsBWwwaWNE3HJxYUo7sEmasjzZpSziEQ7eXBwdQjVILVTbOcQA10DlG75H9Z Sr9wdrAPF/WkxKAsvzNa3T2JXGGhPmSnlaRntkcc3wjAlE0GzyJHdDISaLxjVJf/VH lBzgG3e3BXnwP0mlEXQCIqzhGzpogYDxRvRL1pclxHXz+YBvlRwmI1eDZpoXOoC0iZ MYNthL8mvfjuQ== Date: Fri, 13 Jan 2023 17:29:16 +0000 From: Mark Brown To: Matthew Wilcox Cc: Naresh Kamboju , open list , Linux-Next Mailing List , lkft-triage@lists.linaro.org, regressions@lists.linux.dev, Kefeng Wang , Andrew Morton , Arnd Bergmann , Anders Roxell Subject: Re: next: BUG: kernel NULL pointer dereference, address: 0000000000000008 - RIP: 0010:do_wp_page Message-ID: References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="TMhMJ435BNU2n88d" Content-Disposition: inline In-Reply-To: X-Cookie: I know how to do SPECIAL EFFECTS!! Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --TMhMJ435BNU2n88d Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Jan 13, 2023 at 03:53:44PM +0000, Matthew Wilcox wrote: > On Fri, Jan 13, 2023 at 09:14:15PM +0530, Naresh Kamboju wrote: > > [ 15.980869] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS > > 2.0b 07/27/2017 > > [ 15.988336] RIP: 0010:do_wp_page (memory.c:?) > Uh, are you compiling your kernels without debuginfo? The results > from syzbot & 0day are much more useful: > https://lore.kernel.org/linux-mm/Y8FnAwWOxLrfoWTN@casper.infradead.org/T/#u > for an example. This will be a consequence of x86 not including DEBUG_INFO in defconfig - a lot of the testing systems cover unmodified upstream configs as a baseline, it tends to make life easier and be an indication of what people want covering. A quick survey says most architectures are setting at least DEBUG_INFO_REDUCED, it'd probably be a good idea for x86 to do so as well. The logs from arm64 and probably also arm (depending on exactly which config was being covered) should be more usefully decodable, Naresh you mentioned that those were also failing? --TMhMJ435BNU2n88d Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEyBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmPBlOwACgkQJNaLcl1U h9DLYgf3YlPfc1pcH0HO6HljwMCx4N5dyA5iHuN02tOpucDFEofh4Ca72a+QwHbV w6c7eGAk+WTO+HaPHSpSRxgvT67Xnk/8s4r5xnTAXvb3CC0cUcPob3zBa8aNH2ms ZbQm4dd6fva7sVJFzD1NhlTd/lOeyWIK0bZ+rWtHb2uEmbroBtyyJMYOy9KBCA5i 0vC3rXkfGeyk2bab8Io9sAx4BJbg4cSdeSX3Fg3xXgspTpuz8xr9/UKKESkZ85yB C/Kr98r0EmRg+5BIVdtdesDUE1+5PkpXi5mp6zCOUVe0OhebQ6Wy8rHsVqE+sddM zMRKyHRObgl5CJISgH0PDTJUhKtQ =9Dfl -----END PGP SIGNATURE----- --TMhMJ435BNU2n88d--