From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx162.postini.com [74.125.245.162]) by kanga.kvack.org (Postfix) with SMTP id 010FB6B0044 for ; Thu, 15 Mar 2012 18:21:45 -0400 (EDT) From: Seiji Aguchi Date: Thu, 15 Mar 2012 18:10:29 -0400 Subject: RE: [PATCH 0/5] Persist printk buffer across reboots. Message-ID: <5C4C569E8A4B9B42A84A977CF070A35B2E31C6F891@USINDEVS01.corp.hds.com> References: <1331617001-20906-1-git-send-email-apenwarr@gmail.com> <20120313170851.GA5218@fifo99.com> <20120313151049.fa33d232.akpm@linux-foundation.org> <20120314021906.GC5218@fifo99.com> In-Reply-To: <20120314021906.GC5218@fifo99.com> Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Daniel Walker , Andrew Morton Cc: Avery Pennarun , Josh Triplett , "Paul E. McKenney" , Ingo Molnar , "David S. Miller" , Peter Zijlstra , "Fabio M. Di Nitto" , Johannes Weiner , Olaf Hering , Paul Gortmaker , Tejun Heo , "H. Peter Anvin" , Yinghai LU , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "Luck, Tony (tony.luck@intel.com)" Hi, > There is also this series, >=20 > http://lists.infradead.org/pipermail/kexec/2011-July/005258.html >=20 > It seems awkward that pstore is in fs/pstore/ then pstore ends up as the = "back end" where it could just be the whole solution. I just wanted to avoid deadlocks of pstore and its drivers such as mtdoops,= ramoops, and efi_pstore in panic case. That is still under discussion in lkml. I have no objection to modifying mtdoops/ram_console to use pstore. >pstore does seems to have the nicest user interface (might be better in de= bugfs tho). If someone wanted to move forward with pstore they would have t= o write some some sort of, > >int pstore_register_simple(unsigned long addr, unsigned long size); > >to cover all the memory areas that aren't transaction based, or make pstor= e accept a platform_device. If you would like to introduce new feature to pstore, Tony Luck is the appr= opriate person to discuss. Seiji -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org