Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp2807180pxb; Tue, 9 Mar 2021 11:18:31 -0800 (PST) X-Google-Smtp-Source: ABdhPJzzy3htvlma4GQZF0vXN/AOlkl6doxCB1kmij6DdFv7wENgtP6IYoYqeh20nNW/MpKSzySm X-Received: by 2002:a50:e1c4:: with SMTP id m4mr5926362edl.182.1615317511079; Tue, 09 Mar 2021 11:18:31 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1615317511; cv=none; d=google.com; s=arc-20160816; b=oq+HR29sQSyYzRkLSWeFzjrijtWoUUx9BRaNrqfZ81Ge0NAgTxzkEKy7MtEHLgwjj1 YQRqWxLsxO2wNBilSuHBdt2g4oHy2OfupuviLZz9vblMOyxzDNr/nBBSWTxReEQ0uLol qR2YsTMM4Pk1Mz/WlxQ0M9TVhWEL9rUJs259SF0xsmSwafPTOU0rALO93T+pQDJ6ZfnW q6PIZizddzaP/FBcFgCgJnmcYTOAHWxSxOuWQD/XNXKE7BHFXxeXhWRreD8t7l9VGJUe USBQVNxixT/HTIPuiQwYC/Ea8MxWMGLi6bphjnNQlQkgLD8nE94pbHes56pi6s4dOiaM 8pzA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:dkim-signature; bh=NX2Ui67bf//+KP/eW8dWn0/fgTw1ajXOOPWCljlmmag=; b=KiCQjqMz4U5QiVotGERX/HYqgFMxmBU5PTSEJft5NFmvVaNFj8r049UXjK2WMeBgto GiL9WDdqeb57svqy8EzX+HgR4LWPS8uchSu+9jw1DoCgoVCbMLPehinI7zIGlp40fd9L P1IbMhU8SP0fLu++oP6Pb9LPkqfDCQEmGI+T/Sx9E2dHjSy/99BOCnFDmyhey4gzMlah EMjzZz7xW/0E1b5RHattQKE2705o2i20/js6Y10U8GlNsJMbXvYrycqHNrgM1BFYOXVZ DCX3Q1+Me60vDUtHVXPcGD4NHS1/4zdC1n2pO2sxBOyrDNL1RXjrVJylcZbBGSSVNI/x xDeg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=hGraUmz1; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id l3si9844456edk.141.2021.03.09.11.18.07; Tue, 09 Mar 2021 11:18:31 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=hGraUmz1; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231248AbhCITRG (ORCPT + 99 others); Tue, 9 Mar 2021 14:17:06 -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-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