From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andreas Schwab <schwab@suse.de>
Cc: linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>,
Nathan Lynch <ntl@pobox.com>,
linux-kernel@vger.kernel.org, Roland McGrath <roland@redhat.com>
Subject: Re: [PATCH 1/2] elf loader support for auxvec base platform string
Date: Tue, 08 Jul 2008 08:56:33 +1000 [thread overview]
Message-ID: <1215471393.8970.157.camel@pasglop> (raw)
In-Reply-To: <je63rirp1x.fsf@sykes.suse.de>
On Mon, 2008-07-07 at 12:01 +0200, Andreas Schwab wrote:
> Roland McGrath <roland@redhat.com> writes:
>
> > There are 32 bits free now. One can anticipate that reassigning a bit
> > would come up only after these are exhausted. With prudent use, this
> > will take a very long time to happen. Then the oldest CPU type string
> > might be retired to reuse its bit. It seems unlikely that there will
> > be a single installation (root directory) that really needs to have
> > installed both a kernel optimized for the oldest CPU model known and a
> > kernel optimized for the newest CPU model known.
>
> The kernel does not have to come from the same place as the root
> filesystem. You may want to run a new kernel with an old filesystem, or
> vice-versa.
I agree, I'm pretty dubious here...
Cheers,
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andreas Schwab <schwab@suse.de>
Cc: Roland McGrath <roland@redhat.com>, Nathan Lynch <ntl@pobox.com>,
linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] elf loader support for auxvec base platform string
Date: Tue, 08 Jul 2008 08:56:33 +1000 [thread overview]
Message-ID: <1215471393.8970.157.camel@pasglop> (raw)
In-Reply-To: <je63rirp1x.fsf@sykes.suse.de>
On Mon, 2008-07-07 at 12:01 +0200, Andreas Schwab wrote:
> Roland McGrath <roland@redhat.com> writes:
>
> > There are 32 bits free now. One can anticipate that reassigning a bit
> > would come up only after these are exhausted. With prudent use, this
> > will take a very long time to happen. Then the oldest CPU type string
> > might be retired to reuse its bit. It seems unlikely that there will
> > be a single installation (root directory) that really needs to have
> > installed both a kernel optimized for the oldest CPU model known and a
> > kernel optimized for the newest CPU model known.
>
> The kernel does not have to come from the same place as the root
> filesystem. You may want to run a new kernel with an old filesystem, or
> vice-versa.
I agree, I'm pretty dubious here...
Cheers,
Ben.
next prev parent reply other threads:[~2008-07-07 22:56 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-03 23:41 [PATCH 1/2] elf loader support for auxvec base platform string Nathan Lynch
2008-07-03 23:41 ` Nathan Lynch
2008-07-04 2:19 ` Roland McGrath
2008-07-04 2:19 ` Roland McGrath
2008-07-07 5:48 ` Benjamin Herrenschmidt
2008-07-07 5:48 ` Benjamin Herrenschmidt
2008-07-07 6:18 ` Roland McGrath
2008-07-07 6:18 ` Roland McGrath
2008-07-07 6:23 ` Benjamin Herrenschmidt
2008-07-07 6:23 ` Benjamin Herrenschmidt
2008-07-07 6:35 ` Roland McGrath
2008-07-07 6:35 ` Roland McGrath
2008-07-07 6:48 ` Benjamin Herrenschmidt
2008-07-07 6:48 ` Benjamin Herrenschmidt
2008-07-07 7:49 ` Andreas Schwab
2008-07-07 7:49 ` Andreas Schwab
2008-07-07 9:31 ` Roland McGrath
2008-07-07 9:31 ` Roland McGrath
2008-07-07 10:01 ` Andreas Schwab
2008-07-07 10:01 ` Andreas Schwab
2008-07-07 22:56 ` Benjamin Herrenschmidt [this message]
2008-07-07 22:56 ` Benjamin Herrenschmidt
2008-07-08 0:31 ` Roland McGrath
2008-07-08 0:31 ` Roland McGrath
2008-07-08 0:48 ` Benjamin Herrenschmidt
2008-07-08 0:48 ` Benjamin Herrenschmidt
2008-07-08 18:35 ` Steven Munroe
2008-07-08 18:35 ` Steven Munroe
2008-07-07 16:16 ` Nathan Lynch
2008-07-07 16:16 ` Nathan Lynch
2008-07-07 22:17 ` Nathan Lynch
2008-07-07 22:17 ` Nathan Lynch
2008-07-07 23:00 ` Benjamin Herrenschmidt
2008-07-07 23:00 ` Benjamin Herrenschmidt
2008-07-04 2:35 ` Mikael Pettersson
2008-07-04 2:35 ` Mikael Pettersson
2008-07-07 15:55 ` Nathan Lynch
2008-07-07 15:55 ` Nathan Lynch
-- strict thread matches above, loose matches on Subject: below --
2008-07-07 15:14 Steven Munroe
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