[3857] in arla-drinkers
Re: Arla 0.42-RC2
daemon@ATHENA.MIT.EDU (Jeffrey Hutzelman)
Tue Apr 4 11:23:08 2006
From arla-drinkers-bounces@stacken.kth.se Tue Apr 04 15:23:07 2006
Return-Path: <arla-drinkers-bounces@stacken.kth.se>
Delivered-To: arla-drinkers-mtg@bloom-picayune.mit.edu
Received: (qmail 28186 invoked from network); 4 Apr 2006 15:23:07 -0000
Received: from mx2.kth.se (130.237.48.98)
by charon.mit.edu with SMTP; 4 Apr 2006 15:23:07 -0000
Received: from localhost (localhost.localdomain [127.0.0.1])
by mx2.kth.se (Postfix) with ESMTP id 3310B1408F4;
Tue, 4 Apr 2006 17:23:06 +0200 (CEST)
Received: from mx2.kth.se ([127.0.0.1])
by localhost (mx2.kth.se [127.0.0.1]) (amavisd-new, port 10024) with LMTP
id 07033-01-31; Tue, 4 Apr 2006 17:23:04 +0200 (CEST)
Received: from tapas.stacken.kth.se (tapas.stacken.kth.se [130.237.234.140])
by mx2.kth.se (Postfix) with ESMTP id 929EC1407F2;
Tue, 4 Apr 2006 17:23:03 +0200 (CEST)
Received: from tapas.stacken.kth.se (localhost [127.0.0.1])
by tapas.stacken.kth.se (Postfix) with ESMTP id 1F512534F3;
Tue, 4 Apr 2006 17:23:03 +0200 (CEST)
X-Original-To: arla-drinkers@tapas.stacken.kth.se
Delivered-To: arla-drinkers@tapas.stacken.kth.se
Received: from brev.stacken.kth.se (brev.stacken.kth.se [130.237.234.84])
by tapas.stacken.kth.se (Postfix) with ESMTP id F0BE7534F3
for <arla-drinkers@tapas.stacken.kth.se>;
Tue, 4 Apr 2006 17:23:00 +0200 (CEST)
Received: from mx3.kth.se (mx3.kth.se [130.237.48.97])
by brev.stacken.kth.se (8.12.10/8.12.10) with ESMTP id k34FMxbB016251;
Tue, 4 Apr 2006 17:23:00 +0200 (MET DST)
Received: from localhost (localhost.localdomain [127.0.0.1])
by mx3.kth.se (Postfix) with ESMTP id A0F91140830;
Tue, 4 Apr 2006 17:22:59 +0200 (CEST)
Received: from mx3.kth.se ([127.0.0.1])
by localhost (mx3.kth.se [127.0.0.1]) (amavisd-new,
port 10024) with LMTP
id 16666-02-72; Tue, 4 Apr 2006 17:22:57 +0200 (CEST)
Received: from crunchberry.srv.cs.cmu.edu (CRUNCHBERRY.SRV.CS.CMU.EDU
[128.2.203.75]) by mx3.kth.se (Postfix) with ESMTP id DFBF1140625;
Tue, 4 Apr 2006 17:22:56 +0200 (CEST)
Received: from mariner.pc.cs.cmu.edu
(IDENT:U2FsdGVkX1/StL1Z5B3KgnQyH1Y93mwl5fFm1afLczU@MARINER.PC.CS.CMU.EDU
[128.2.200.130]) (authenticated bits=0)
by crunchberry.srv.cs.cmu.edu (8.13.6/8.13.6) with ESMTP id
k34FMgts006095
(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
Tue, 4 Apr 2006 11:22:50 -0400 (EDT)
Date: Tue, 04 Apr 2006 11:22:42 -0400
From: Jeffrey Hutzelman <jhutz@cmu.edu>
To: Tomas Olsson <tol@stacken.kth.se>
Subject: Re: Arla 0.42-RC2
Message-ID: <EE989ECB0CF3644D04E0FE5E@mariner.pc.cs.cmu.edu>
In-Reply-To: <lsr8xqltnr2.fsf@kashyyyk.ite.kth.se>
References: <lsrbqvpxoy3.fsf@kashyyyk.ite.kth.se>
<nnpsjy8zsz.fsf@sellafield.lysator.liu.se>
<lsry7ylu7l1.fsf@kashyyyk.ite.kth.se>
<1DD0597778163FD925163115@mariner.pc.cs.cmu.edu>
<lsr8xqltnr2.fsf@kashyyyk.ite.kth.se>
Originator-Info: login-token=Mulberry:01d8fSN+EvR6vDEkq4qkUCpg45CWL++0vkPACcrUc=;
token_authority=postmaster@andrew.cmu.edu
X-Mailer: Mulberry/3.1.6 (Linux/x86)
MIME-Version: 1.0
Content-Disposition: inline
X-Virus-Scanned: by amavisd-new at kth.se
X-Spam-Status: No, hits=-4.9 tagged_above=-200.0 required=5.0 tests=BAYES_00
X-Spam-Level:
Cc: Jeffrey Hutzelman <jhutz@cmu.edu>, arla-drinkers@stacken.kth.se
X-BeenThere: arla-drinkers@stacken.kth.se
X-Mailman-Version: 2.1.6
Precedence: list
List-Id: Arla discussions <arla-drinkers.stacken.kth.se>
List-Unsubscribe: <https://lists.stacken.kth.se/mailman/listinfo/arla-drinkers>,
<mailto:arla-drinkers-request@stacken.kth.se?subject=unsubscribe>
List-Archive: <http://lists.stacken.kth.se/pipermail/arla-drinkers>
List-Post: <mailto:arla-drinkers@stacken.kth.se>
List-Help: <mailto:arla-drinkers-request@stacken.kth.se?subject=help>
List-Subscribe: <https://lists.stacken.kth.se/mailman/listinfo/arla-drinkers>,
<mailto:arla-drinkers-request@stacken.kth.se?subject=subscribe>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Sender: arla-drinkers-bounces@stacken.kth.se
Errors-To: arla-drinkers-bounces@stacken.kth.se
X-Virus-Scanned: by amavisd-new at kth.se
On Tuesday, April 04, 2006 04:32:33 PM +0200 Tomas Olsson
<tol@stacken.kth.se> wrote:
> Jeffrey Hutzelman <jhutz@cmu.edu> writes:
>> Yup; you're going to have that problem with 2.6.16, because they went
>> off and moved things into different sections. Worse, if the kernel is
>> compiled with CONFIG_DEBUG_RODATA, then on some platforms the system
>> call table will actually be stored in read-only pages, and attempts to
>> update it will result in a panic.
>>
> How... oh well, as usual I guess. This is new for 2.6.16, right?
Yeah; both putting the syscall table in .rodata (or, in some cases, .text)
and making those sections read-only seem to be new. I don't think it's a
deliberate attempt to cause problems for us, but it does have that effect.
>> We probably should do something about getting updated syscall table
>> probing code back into Arla.
>>
> Or just throw the syscall code away. Do people really need it?
Good question. I think I've seen more people complain about the warning
message than about tools not working because the AFS syscall didn't work.
The real problem, of course, is....
> Is it
> possible to use the keyrings for reasonable pag storage nowadays?
Unclear. Derrick supposedly had written code to do this for OpenAFS, but
(if I rembmber right) was blocking on the kernel folks exporting some
keyring-management operations so we could do setpag. But I don't think
I've ever actually seen that code, so I can't vouch for its correctness or
even for its not having been accidentally deleted. :-)
I think we get to keep the syscall code a bit longer...
-- Jeff
_______________________________________________
Arla-drinkers mailing list
Arla-drinkers@stacken.kth.se
https://lists.stacken.kth.se/mailman/listinfo/arla-drinkers
