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From: Dave Jones <davej@redhat.com>
To: Christoph Lameter <clameter@engr.sgi.com>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>,
	Matthew Wilcox <matthew@wil.cx>,
	"Luck, Tony" <tony.luck@intel.com>,
	Arjan van de Ven <arjan@infradead.org>,
	hawkes@sgi.com, Tony Luck <tony.luck@gmail.com>,
	Andrew Morton <akpm@osdl.org>,
	linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org,
	Jack Steiner <steiner@sgi.com>, Dan Higgins <djh@sgi.com>,
	John Hesterberg <jh@sgi.com>, Greg Edwards <edwardsg@sgi.com>
Subject: Re: [PATCH] ia64: change defconfig to NR_CPUS==1024
Date: Fri, 6 Jan 2006 16:00:24 -0500	[thread overview]
Message-ID: <20060106210024.GK4595@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.62.0601061035510.17875@schroedinger.engr.sgi.com>

On Fri, Jan 06, 2006 at 10:37:33AM -0800, Christoph Lameter wrote:
 > On Fri, 6 Jan 2006, Randy.Dunlap wrote:
 > 
 > > > The dicey thing in all of this is that the generic kernels will be used
 > > > for the certification of applications. If the cpu limit is too low then
 > > > applications will simply not be certified for these high processor counts.
 > > > One may encounter problems if the app is then run with a higher processor
 > > > count.
 > > 
 > > Do you equate a 'defconfig' kernel with a generic kernel?
 > > 
 > > I would expect certs to be done on vendor kernels, and as
 > > Arjan has suggested, they will have their own configs,
 > > not defconfig.
 > 
 > Vendors look for the upstream defaults and orient themselves on the 
 > defconfig. It is best to have as much common code and configurations as 
 > possible.

As someone who builds vendor kernels, I can say this isn't true (from my
experience at least).  When a new config option appears, I look at the
Kconfig, and make a decision.  I *never* even look at the defconfig, as
a lot of the time, they are either out of date, or irrelevant.

		Dave


  parent reply	other threads:[~2006-01-06 21:01 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-06 17:45 [PATCH] ia64: change defconfig to NR_CPUS==1024 Luck, Tony
2006-01-06 17:49 ` Matthew Wilcox
2006-01-06 18:04   ` Christoph Lameter
2006-01-06 18:07     ` Matthew Wilcox
2006-01-06 18:19     ` Randy.Dunlap
2006-01-06 18:37       ` Christoph Lameter
2006-01-06 18:59         ` Arjan van de Ven
2006-01-06 20:17           ` Alan Cox
2006-01-06 20:18             ` Randy.Dunlap
2006-01-06 20:42           ` Rohit Seth
2006-01-06 21:00         ` Dave Jones [this message]
2006-01-06 18:25 ` Adrian Bunk
  -- strict thread matches above, loose matches on Subject: below --
2006-01-06 17:19 Luck, Tony
2006-01-06 17:24 ` Arjan van de Ven
2006-01-06 17:26 ` Matthew Wilcox
2006-01-05 21:39 hawkes
2006-01-05 22:33 ` Chen, Kenneth W
2006-01-06 17:06   ` John Hawkes
2006-01-06  8:38 ` Arjan van de Ven
2006-01-12  0:09 ` Paul Jackson
2006-01-12 19:04   ` Christoph Lameter

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