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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 34DFCC433E0 for ; Tue, 9 Mar 2021 19:17:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E20DA6522F for ; Tue, 9 Mar 2021 19:17:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231309AbhCITRH (ORCPT ); Tue, 9 Mar 2021 14:17:07 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:52214 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230173AbhCITQe (ORCPT ); Tue, 9 Mar 2021 14:16:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615317394; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=NX2Ui67bf//+KP/eW8dWn0/fgTw1ajXOOPWCljlmmag=; b=hGraUmz15m0C72bwKiQLn+7fceDhzYcNcS8RurolMgG2fLHsNWjBGRxw/3LTI2iC4jwFW1 9VluKeTHKtNQ6xeZQW3SRodVWMwOzlS5C1JHlyOU+1FgUnALmNKmwGS3oQUqCN9ncI/AdK LTCp/Wd3DtAwvbM7Nq0FBPeF2sUXACQ= Received: from mail-pg1-f198.google.com (mail-pg1-f198.google.com [209.85.215.198]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-115-jVBG7a7LOACbHhAr_8WRyQ-1; Tue, 09 Mar 2021 14:16:32 -0500 X-MC-Unique: jVBG7a7LOACbHhAr_8WRyQ-1 Received: by mail-pg1-f198.google.com with SMTP id 2so8170711pgo.0 for ; Tue, 09 Mar 2021 11:16:31 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=NX2Ui67bf//+KP/eW8dWn0/fgTw1ajXOOPWCljlmmag=; b=ojaX1u+widmRJHhtqbs6M2jiuolXWeQR9a+B14Njs/oCN7CC0zxMNDUJCDctscANmD cxYWTbWTJdXarOcBYbxnoth638GVdvwDigwQ7ewxUaSManniYhTyIrzzn+iqeWQQcg9D e4D2jizptknf2FzU2P0A8COugStgafnkc1jmG2cks9rBhC8EY7PzFkCfxdbZO6tm7Ap5 7I2lK/qCOqjqsI9wPUy3x+D68A96X69H53zlO+DkpO62ZsnKMh9YT/zTymsTUBE79ox5 M8USwG5LSYRAxsKj4uB545mBxm5qlnZACfpjFiv7nBJ4i5rPwAwxMCHhwt2sV9Ob/Io5 1nCA== X-Gm-Message-State: AOAM532xJ527jx7n/OXi8kIMMN1OmkqNmVbA9L+n1TLc/zNZp7Px8XrZ AdzZCMcNAwKRGnZH4BXJdPcATmiflfKtsrK2+y4pBIN7KzNFf2QRwhhZB/kQZgRbxcHA3GYQJdX hv66z7mUD34GdGOYVcJu/0ymB X-Received: by 2002:a17:902:8c97:b029:e2:8c58:153f with SMTP id t23-20020a1709028c97b02900e28c58153fmr5189053plo.79.1615317391158; Tue, 09 Mar 2021 11:16:31 -0800 (PST) X-Google-Smtp-Source: ABdhPJy5rJhW4yXYjytN62DgfnhiNkJtbpbGTaCD/5FN7tzx4XcEd1FJBhQnm9PzjdTGT7OuEEE3aA== X-Received: by 2002:a17:902:8c97:b029:e2:8c58:153f with SMTP id t23-20020a1709028c97b02900e28c58153fmr5189020plo.79.1615317390869; Tue, 09 Mar 2021 11:16:30 -0800 (PST) Received: from xiangao.remote.csb ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id mu6sm3541566pjb.35.2021.03.09.11.16.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Mar 2021 11:16:30 -0800 (PST) From: Gao Xiang To: linux-doc@vger.kernel.org, Jonathan Corbet Cc: linux-kernel@vger.kernel.org, Gao Xiang , Matthias Kaehlcke , Greg Kroah-Hartman , Zefan Li Subject: [PATCH] Documentation: sysrq: update description about sysrq crash Date: Wed, 10 Mar 2021 03:15:50 +0800 Message-Id: <20210309191550.3955601-1-hsiangkao@redhat.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org After commit 8341f2f222d7 ("sysrq: Use panic() to force a crash"), a crash was not generated by dereferencing a NULL pointer anymore. Let's update documentation as well to make it less misleading. Cc: Matthias Kaehlcke Cc: Greg Kroah-Hartman Cc: Jonathan Corbet Cc: Zefan Li Signed-off-by: Gao Xiang --- Documentation/admin-guide/sysrq.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/admin-guide/sysrq.rst b/Documentation/admin-guide/sysrq.rst index 67dfa4c29093..60ce5f5ebab6 100644 --- a/Documentation/admin-guide/sysrq.rst +++ b/Documentation/admin-guide/sysrq.rst @@ -90,8 +90,8 @@ Command Function ``b`` Will immediately reboot the system without syncing or unmounting your disks. -``c`` Will perform a system crash by a NULL pointer dereference. - A crashdump will be taken if configured. +``c`` Will perform a system crash and a crashdump will be taken + if configured. ``d`` Shows all locks that are held. -- 2.27.0