From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marco Stornelli Subject: Re: [PATCH, RFC] panic-note: Annotation from user space for panics Date: Tue, 17 Nov 2009 18:53:04 +0100 Message-ID: <4B02E300.8080409@gmail.com> References: <20091112021322.GA6166@dvomlehn-lnx2.corp.sa.net> <4AFC4D31.2000101@gmail.com> <20091112215649.GA28349@dvomlehn-lnx2.corp.sa.net> <20091113091031.3f6d4bba@marrow.netinsight.se> <1258112748.21596.1227.camel@localhost> <4AFE6A14.4010507@gmail.com> <1258447997.27437.76.camel@localhost> <2ea1731b0911170445x13225c19w797388d2211de2d9@mail.gmail.com> <1258463404.27437.103.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=UJhEG14AqTSL4iV7yWTVIfRKxfJOUYZp8biU1X3z26A=; b=FUyvDB1C+D8qSUKnWiQHJX89+z2B6yRSLjxzMiuQO/CYPs8iLO+9Bz6TMPNNeZf1So CVKbmLfCv5bBKpoE2RWKH7qvZUU+GMPD6VBNy7xm80YNrWHjoNPGlZkB22bJYxNTk+HH tI3t+GK+wWoDouE2g8YEXKh0qYgMjPSNKlj88= In-Reply-To: <1258463404.27437.103.camel@localhost> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: dedekind1@gmail.com Cc: Simon Kagstrom , David VomLehn , linux-embedded@vger.kernel.org, akpm@linux-foundation.org, dwm2@infradead.org, linux-kernel@vger.kernel.org, mpm@selenic.com, paul.gortmaker@windriver.com Artem Bityutskiy wrote: > On Tue, 2009-11-17 at 13:45 +0100, Marco Stornelli wrote: >> 2009/11/17 Artem Bityutskiy : > > We need to store this information of NAND flash. Implementing logs on > NAND flash is about handling bad blocks, choosing format of records, and > may be even handling wear-levelling. This is not that simple. > > And then I have match oops to the userspace environment prints, using I > guess timestamps, which is also about complications in userspace. > Indeed my suggestion was to use a persistent ram, not difficult to use. >>> This patch solves the problem gracefully, and I'd rather demand you to point what >>> is the technical problem with the patches. >>> >> Simply because I think that we should avoid to include in the kernel >> things we can do in a simply way at user space level. > > If it is much easier to have in the kernel, then this argument does not > work, IMHO. > >> I think this >> patch is well done but it's one of the patches that are solutions "for >> embedded only", but it's only my opinion. > > Also IMHO, but having embedded-only things is not bad at all. > In the past other patches are not accepted in main line for this, maybe you'll be luckier. Marco