From: David Miller <davem@davemloft.net>
To: crn@netunix.com
Cc: torvalds@linux-foundation.org, mingo@elte.hu, clameter@sgi.com,
michal.k.k.piotrowski@gmail.com, akpm@linux-foundation.org,
linux-kernel@vger.kernel.org, cherwin@gmail.com,
linux-pcmcia@lists.infradead.org, robert.de.rooy@gmail.com,
alan@redhat.com, htejun@gmail.com, sparclinux@vger.kernel.org,
mikpe@it.uu.se, linux1394-devel@lists.sourceforge.net,
stefanr@s5r6.in-berlin.de, krh@bitplanet.net,
linux-pm@lists.linux-foundation.org, rjw@sisk.pl, pavel@ucw.cz,
marcus@better.se, arvidjaar@mail.ru,
linux-usb-devel@lists.sourceforge.net, gregkh@suse.de
Subject: Re: [2/3] 2.6.22-rc2: known regressions v2
Date: Fri, 25 May 2007 13:36:53 -0700 (PDT) [thread overview]
Message-ID: <20070525.133653.57156321.davem@davemloft.net> (raw)
In-Reply-To: <46572507.6010800@netunix.com>
From: Chris Newport <crn@netunix.com>
Date: Fri, 25 May 2007 19:03:51 +0100
> Not really a Solaris feature. This is a feature of the Openboot PROM
> which is also used by several other vendors.
> The Openboot PROM knows how to write to disk. The same should
> apply on Apple hardware and others which use the openboot
> convention.
This is totally unusable even if it weren't stupid, and as
someone who loves OpenBoot I think it's very stupid.
The reason it's unusable is that PowerPC already and sparc64 soon (in
order to support LDOMs) totally drops the OBP firmware very soon after
early kernel boot. We pull in the device tree and then say "see ya"
to openboot.
PowerPC does it because sharing the address space with openboot is
next to impossible on that cpu, sparc64 will need to do it because
dynamic-reconfiguration of cpus in an LDOM is too hard to do with
openboot there.
next prev parent reply other threads:[~2007-05-25 20:36 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <46558708.2040803@googlemail.com>
2007-05-24 14:04 ` Michal Piotrowski
2007-05-24 14:18 ` [linux-pm] " Alan Stern
2007-05-24 17:01 ` Christoph Lameter
2007-05-24 17:12 ` Linus Torvalds
2007-05-24 17:18 ` Christoph Lameter
2007-05-24 18:49 ` Andrew Morton
2007-05-24 19:21 ` Linus Torvalds
2007-05-24 21:02 ` Jeff Garzik
2007-05-24 19:37 ` Ingo Molnar
2007-05-24 19:50 ` Linus Torvalds
2007-05-24 20:02 ` David Woodhouse
2007-05-25 10:11 ` Ingo Molnar
2007-05-25 10:18 ` Stefan Richter
2007-05-25 16:21 ` Linus Torvalds
2007-05-25 11:53 ` Chris Newport
2007-05-25 12:34 ` Ingo Molnar
2007-05-25 16:33 ` Andrew Morton
2007-05-25 16:45 ` Christoph Lameter
2007-05-28 3:46 ` Vivek Goyal
2007-05-25 12:40 ` Stefan Richter
2007-05-25 16:45 ` Linus Torvalds
2007-05-25 17:03 ` Alan Cox
2007-05-25 17:19 ` Linus Torvalds
2007-05-25 17:37 ` Andrew Morton
2007-05-25 17:48 ` Alan Cox
2007-05-25 17:50 ` Linus Torvalds
2007-05-28 4:27 ` Vivek Goyal
2007-05-25 17:07 ` Chuck Ebbert
2007-05-25 17:21 ` Linus Torvalds
2007-05-25 18:03 ` Chris Newport
2007-05-25 20:36 ` David Miller [this message]
2007-05-26 13:16 ` [linux-pm] " Matt Sealey
2007-06-03 6:47 ` Stefan Richter
2007-05-24 14:04 ` [3/3] " Michal Piotrowski
2007-05-24 22:04 ` Greg KH
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