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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F1125C433FE for ; Wed, 5 Oct 2022 11:14:46 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4MjBmj0cT7z3cd2 for ; Wed, 5 Oct 2022 22:14:45 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=oQR5HYB7; dkim-atps=neutral Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4MjBlc4c6gz2xrr for ; Wed, 5 Oct 2022 22:13:48 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=oQR5HYB7; dkim-atps=neutral Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4MjBlR6ZKrz4xGd; Wed, 5 Oct 2022 22:13:39 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1664968420; bh=9HmsuI6bN6wZ0OmFrg/5trofe++PshYJIEAHR8fCgZc=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=oQR5HYB7QRlnc4kszi7gr/iQtJdEgryI8YUjeBqWlCZBpOvcMVvmCc+rfYL7dGWkj dfR3MT2InRSmaLFJHvABjeSJqqrJgyaHOYTtUyi9EZoDN6b/k2MTKXWST46yHtdaSN E8V0GCbPZ+DvQtaiyvvUaNFSUYGkLOLptHXvTBN39HN3wQ2iiHxWLN/BcpGjmRFja6 JvoFE1GhsAuH/wzYVfCSYOxo7f9H+ve2OmXAuSFFJxUxDuRSRBEljXzTMlory3KmKc Gqzln2dVT42SqEfcmUtjMATNh5ySD9N9H6XFUqlQcf32Fb3A4I8GwZ7Q9SBHxpziZX IlK/ThR/PX6lQ== From: Michael Ellerman To: Matthew Wilcox Subject: Re: [Bug report] BUG: Kernel NULL pointer dereference at 0x00000069, filemap_release_folio+0x88/0xb0 In-Reply-To: References: <20220927011720.7jmugevxc7ax26qw@zlang-mailbox> <87wn9lei2x.fsf@mpe.ellerman.id.au> Date: Wed, 05 Oct 2022 22:13:35 +1100 Message-ID: <87bkqqplpc.fsf@mpe.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mm@kvack.org, linux-ext4@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Zorro Lang Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Matthew Wilcox writes: > On Fri, Sep 30, 2022 at 12:01:26PM +1000, Michael Ellerman wrote: >> Matthew Wilcox writes: >> >> [ 4681.238745] Instruction dump: >> >> [ 4681.238749] fbc1fff0 f821ffc1 7c7d1b78 7c9c2378 ebc30028 7fdff378 48000018 60000000 >> >> [ 4681.238765] 60000000 ebff0008 7c3ef840 41820048 <815f0060> e93f0000 5529077c 7d295378 >> > >> > Running that through scripts/decodecode (with some minor hacks .. how >> > do PPC people do this properly?) >> >> We've just always used our own scripts. Mine is here: https://github.com/mpe/misc-scripts/blob/master/ppc/ppc-disasm >> >> I've added an issue to our tracker for us to get scripts/decodecode >> working on our oopses (eventually). > > Would you be open to changing your oops printer to do > s/Instruction dump/Code/ ? That would make it work without any other > changes. Yeah, we're the only arch that uses "Instruction dump". For userspace instructions we already print "code". I'll send a patch switching to "Code:". cheers