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From: "H. Peter Anvin" <hpa@zytor.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Russell King <rmk@arm.linux.org.uk>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-next@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <peterz@infradead.org>,
	Yinghai Lu <yinghai@kernel.org>
Subject: Re: linux-next: build failure after merge of the final tree (tip tree related)
Date: Mon, 02 Aug 2010 20:13:32 -0700	[thread overview]
Message-ID: <4C57895C.1070402@zytor.com> (raw)
In-Reply-To: <1280799724.1902.84.camel@pasglop>

On 08/02/2010 06:42 PM, Benjamin Herrenschmidt wrote:
> 
> I'm happy to wait and sit on the memblock churn until after ARM's in.
> 
> I can then fixup my patches.
> 

As far as x86 is concerned, I would like to try to get the whole thing
into -tip fairly early in a kernel cycle, so that it can get -tip/-next
testing for a while before merging.

I would much rather smoke out bugs like the qla2xxx failing to implement
.shutdown and therefore doing DMA on random memory than just paper it
over by functionally re-implementing a bunch of the memblock guts in x86.

I still think that the memblock approach of having a separate data
structure for all of memory and one for various used blocks is flawed,
and that it would be a lot better to have a single data structure with
attributes.  It would definitely make allocation saner.  Given that,
there is a strong reason to keep as little of the guts exposed as possible.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

  reply	other threads:[~2010-08-03  3:15 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-02 16:23 linux-next: build failure after merge of the final tree (tip tree related) Stephen Rothwell
2010-08-02 16:28 ` Russell King
2010-08-02 16:32   ` H. Peter Anvin
2010-08-03  1:07     ` Benjamin Herrenschmidt
2010-08-03  1:42   ` Benjamin Herrenschmidt
2010-08-03  3:13     ` H. Peter Anvin [this message]
2010-08-03  4:32       ` Benjamin Herrenschmidt
2010-08-03  5:29     ` Ingo Molnar
2010-08-02 16:28 ` Stephen Rothwell
2010-08-03  1:41 ` Benjamin Herrenschmidt
  -- strict thread matches above, loose matches on Subject: below --
2011-04-12  4:00 Stephen Rothwell
2011-04-12  6:20 ` Ingo Molnar
2011-04-12  6:25   ` David Miller
2010-11-29  2:50 Stephen Rothwell
2010-11-29 22:30 ` Peter Zijlstra
2010-12-07  1:56 ` Stephen Rothwell
2010-11-22  2:39 Stephen Rothwell
2010-11-22 22:00 ` Don Zickus
2010-11-29  2:50 ` Stephen Rothwell
2010-11-29  8:29   ` Ingo Molnar
2010-11-29 14:30     ` Don Zickus
2010-12-07  1:58       ` Stephen Rothwell
2010-12-07 15:37         ` Don Zickus
2010-10-14  5:49 Stephen Rothwell
2010-10-14  6:31 ` Ingo Molnar
2010-09-13 14:29 Stephen Rothwell
2010-09-16  6:32 ` Stephen Rothwell
2010-09-16  6:39   ` Ingo Molnar
2010-09-16  7:08     ` Russell King - ARM Linux
2010-09-16  7:34       ` Ingo Molnar
2010-09-16  9:02         ` Russell King - ARM Linux
2010-09-16  7:09     ` Stephen Rothwell
2010-09-16  7:20       ` Yinghai Lu
2010-09-16  7:27         ` Stephen Rothwell
2010-09-13 14:06 Stephen Rothwell
2010-09-13 19:17 ` Matt Fleming
2010-09-13 19:22   ` Peter Zijlstra
2010-06-23 16:31 Stephen Rothwell
2010-06-23 16:55 ` Frederic Weisbecker
2010-06-23 23:31   ` Stephen Rothwell
2010-06-24  0:37     ` Stephen Rothwell
2010-06-23  0:50 Stephen Rothwell

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