Received: by 10.213.65.68 with SMTP id h4csp1282623imn; Sat, 24 Mar 2018 08:20:13 -0700 (PDT) X-Google-Smtp-Source: AG47ELupKe7GPf9hvSWG4bwfxp+Gpa/BJOHf5865Tk31uayF2eqwW4LExBvpMYKrskN+meCBzV3I X-Received: by 10.99.0.2 with SMTP id 2mr19250001pga.395.1521904813825; Sat, 24 Mar 2018 08:20:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521904813; cv=none; d=google.com; s=arc-20160816; b=JSJ2WtjQzWrBWTl/nad/EadfkUN1gqfIGnfm/sOrTB8szd7KhvFUbE4heLWnWfsZWJ Dl4M0+EUqSoeg8moBSdCdGcGHsn3cLxD3NsG8mUDlY1WPHjm1GJ7VpmX0Zz/c/W+beH5 X9iznb40S+a7Mwy4kLSwItKCzGVnSo7Yc0cT5W6KfXvfuET1IUXBLbm+QAY/x+NY2rqO EkFavpGAA9v5qGCL80tofo4O4MgBG9zcIf4YjFBXkAPzClKv11Gsxdj4xpxXMgHnDDPY FBj2pYvp5zJ/yoLEGVQFE6/9vZFgnYABXp42B57+Xk0aJzzQaGXrAYk2mcN7wqYbqwQ5 KOcg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature:arc-authentication-results; bh=efrlo240su/2Bfa+XwEP4CJ7U16Q6JDh3esAeW199BI=; b=z7/63X/YumEOk4PMpESQzYZTGoHPTa6iF7zFcoyPHqVPOyGrUPiO7rZvTUw/adlX+V LKsJFzPbH6t7s624xuZpXornsrlea8zGfp82Z83Ss8toOzv6129ZXYSu9jQMTH1bQYbY jjCfNin1rKVk0pxoUXSiDm+kV2CvviXsNVflzaHMWnQsloGuyfRqMX7pRgrCyTCvF/8o mvIWOaP8oQZVqHUjiJyJFh4A29mEqzL6AbWuqmLR6vLcRr1xlG4TtxSX+WTiiAcTnLcT WfdcfDumWiFsKlVuGfLGKcq/r8fgN9rsJ5nkLAr1oBpUM38l1TTXl5Kcu1eXLgZ1bsSZ M7sA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@lunn.ch header.s=20171124 header.b=5g77FdLY; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id k13si7495668pgo.578.2018.03.24.08.19.58; Sat, 24 Mar 2018 08:20:13 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@lunn.ch header.s=20171124 header.b=5g77FdLY; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752462AbeCXPS7 (ORCPT + 99 others); Sat, 24 Mar 2018 11:18:59 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:41085 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752380AbeCXPS6 (ORCPT ); Sat, 24 Mar 2018 11:18:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date; bh=efrlo240su/2Bfa+XwEP4CJ7U16Q6JDh3esAeW199BI=; b=5g77FdLYzTp4jmGpwXHqtvl8WBS848IHPtifIDAy/4TGiJSsEe+EiOXstf+sIeZP7Lb/3XR1QHBQ/SfSFNoA/2uMjPxh63oO5h01o8+Czdn3WiruF1G3xgdX1zrviqU0GiQvbjguIjDpFNMbYjoz0fm/YT3Xqh4x4S/PLNaEvpI=; Received: from andrew by vps0.lunn.ch with local (Exim 4.84_2) (envelope-from ) id 1ezkwW-0000PK-PM; Sat, 24 Mar 2018 16:18:52 +0100 Date: Sat, 24 Mar 2018 16:18:52 +0100 From: Andrew Lunn To: Rahul Lakkireddy Cc: netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, davem@davemloft.net, viro@zeniv.linux.org.uk, ebiederm@xmission.com, stephen@networkplumber.org, akpm@linux-foundation.org, torvalds@linux-foundation.org, ganeshgr@chelsio.com, nirranjan@chelsio.com, indranil@chelsio.com Subject: Re: [PATCH net-next v2 2/2] cxgb4: collect hardware dump in second kernel Message-ID: <20180324151852.GE31941@lunn.ch> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Mar 24, 2018 at 04:26:34PM +0530, Rahul Lakkireddy wrote: > Register callback to collect hardware/firmware dumps in second kernel > before hardware/firmware is initialized. The dumps for each device > will be available under /sys/kernel/crashdd/cxgb4/ directory in second > kernel. > > Signed-off-by: Rahul Lakkireddy > Signed-off-by: Ganesh Goudar Thanks for adding generic documentation about the files in sysfs. However, you don't add any specific documentation here about the cxgb4 crash dump. How am i supposed to interpret it? Does it follow any of the standard core dump formats? How do i use gdb with it? Are there some specific tools i should use to analyse it? Thanks Andrew