From patchwork Tue Nov 9 20:28:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Guilherme G. Piccoli" X-Patchwork-Id: 12611053 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C499C433EF for ; Tue, 9 Nov 2021 20:47:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 89B0E6102A for ; Tue, 9 Nov 2021 20:47:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244705AbhKIUt4 (ORCPT ); Tue, 9 Nov 2021 15:49:56 -0500 Received: from fanzine2.igalia.com ([213.97.179.56]:33716 "EHLO fanzine.igalia.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S239911AbhKIUtz (ORCPT ); Tue, 9 Nov 2021 15:49:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject:Cc:To:From; bh=Y1yckhV8f2NZmOsVKhUWwzpqMX8vfzRTxNCsTR573GE=; b=nZ74xeAujHm+BlFzcvSjKeg2lMunufqDlvtjhRvKTWGql20xIEb8Ao6PYfZ0iPrj3w8Ops9CU+qnjFKzizfrGBJYehnSLdwKv65U8XxoswVJkycts3/ip6i/spmwHgL3HSUALAQuBnQD99wMohJHyPJbo10+LpcF99vNVEHpoVHovVg7uu1sSxwvzKE46IuqTx8zaojIk1MFnL+0HFcP2ZO1V7/dWaVIebXyxH8govojTbsJKuNsoE9J7+MFAWn4Sy+R/fEXGjYcLdwV4S3mvGYjuX9PgER/rGfyp0z9S5gsqHEdev9WHTBx6qB+wexpuJL6DNqevA7Z3G7HEaKHpg==; Received: from 201-95-14-182.dsl.telesp.net.br ([201.95.14.182] helo=localhost) by fanzine.igalia.com with esmtpsa (Cipher TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim) id 1mkXkQ-0000IS-HQ; Tue, 09 Nov 2021 21:29:40 +0100 From: "Guilherme G. Piccoli" To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: linux-doc@vger.kernel.org, mcgrof@kernel.org, keescook@chromium.org, yzaikin@google.com, akpm@linux-foundation.org, feng.tang@intel.com, siglesias@igalia.com, kernel@gpiccoli.net, gpiccoli@igalia.com Subject: [PATCH 0/3] Some improvements on panic_print Date: Tue, 9 Nov 2021 17:28:45 -0300 Message-Id: <20211109202848.610874-1-gpiccoli@igalia.com> X-Mailer: git-send-email 2.33.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Hey everybody, this is a mix of a documentation fix with some additions to the "panic_print" syscall / parameter. The goal here is being able to collect all CPUs backtraces during a panic event and also to enable "panic_print" in a kdump event - details of the reasoning and design choices in the patches. Thanks in advance for reviews! Cheers, Guilherme Guilherme G. Piccoli (3): docs: sysctl/kernel: Add missing bit to panic_print panic: Add option to dump all CPUs backtraces in panic_print panic: Allow printing extra panic information on kdump Documentation/admin-guide/kernel-parameters.txt | 1 + Documentation/admin-guide/sysctl/kernel.rst | 2 ++ kernel/panic.c | 11 +++++++++++ 3 files changed, 14 insertions(+)