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From: Mike Travis <travis@sgi.com>
To: David Miller <davem@davemloft.net>
Cc: paulus@samba.org, akpm@linux-foundation.org, yinghai@kernel.org,
	mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sparse_irq aka dyn_irq v13
Date: Thu, 13 Nov 2008 19:06:11 -0800	[thread overview]
Message-ID: <491CEB23.80403@sgi.com> (raw)
In-Reply-To: <20081113.183747.184760657.davem@davemloft.net>

David Miller wrote:

> Practicality is what really matters.
> 
> We can even make the constant number a config option, so that if
> someone has a system that actually triggers past this limit even dist
> vendors can simply bump the config option value.

Unfortunately the reality is that distros spend months certifying the base
kernel for both application and security conformance.  And many (most?) of
the large system customers will only run this kernel.  Even changing root
startup options is considered invalidating the conformance testing.  That
means the kernel has to adapt to the resource needs of the system being
serviced.

Ideally, linux shouldn't have any fixed resources.  A system built to run
on a massively parallel system should also boot and run on a smart phone
(not well perhaps... ;-)

  reply	other threads:[~2008-11-14  3:06 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20081023143721.GA25783@elte.hu>
     [not found] ` <49012399.4010100@kernel.org>
     [not found]   ` <20081027164135.GD19476@elte.hu>
     [not found]     ` <4912B2FE.7030804@kernel.org>
     [not found]       ` <20081106101715.GA4022@elte.hu>
     [not found]         ` <4913B45C.1000009@kernel.org>
     [not found]           ` <20081107081249.GB4435@elte.hu>
     [not found]             ` <4913F9AA.80500@kernel.org>
     [not found]               ` <20081107084240.GG4435@elte.hu>
     [not found]                 ` <491434FB.2050904@kernel.org>
     [not found]                   ` <20081107124957.GA21709@elte.hu>
2008-11-09  7:05                     ` [RFC PATCH] sparse_irq aka dyn_irq Yinghai Lu
2008-11-09  7:38                       ` Ingo Molnar
2008-11-09  8:03                         ` Yinghai Lu
2008-11-10  9:40                           ` Ingo Molnar
2008-11-10  9:51                             ` [PATCH] sparse_irq aka dyn_irq v10 Yinghai Lu
2008-11-10  9:53                               ` Ingo Molnar
2008-11-10  9:55                                 ` Yinghai Lu
2008-11-10  9:57                                   ` Ingo Molnar
2008-11-10  9:55                             ` [RFC PATCH] sparse_irq aka dyn_irq Andrew Morton
2008-11-10 10:00                               ` Yinghai Lu
2008-11-10 10:03                                 ` Ingo Molnar
2008-11-10 10:05                                   ` Yinghai Lu
2008-11-10 10:09                                     ` Ingo Molnar
2008-11-10 19:47                                       ` Yinghai Lu
2008-11-11  6:28                                   ` [PATCH] sparse_irq aka dyn_irq v11 Yinghai Lu
     [not found]                                   ` <491A9F87.8040403@kernel.org>
     [not found]                                     ` <20081112120814.GG11352@elte.hu>
2008-11-13  7:01                                       ` [PATCH] sparse_irq aka dyn_irq v13 Yinghai Lu
2008-11-13  9:53                                         ` Ingo Molnar
2008-11-13 20:06                                           ` Yinghai Lu
2008-11-13 20:16                                       ` Yinghai Lu
2008-11-13 21:18                                         ` Andrew Morton
2008-11-13 21:21                                           ` Ingo Molnar
2008-11-13 22:01                                           ` Yinghai Lu
2008-11-13 22:05                                             ` Ingo Molnar
2008-11-13 22:13                                             ` Andrew Morton
2008-11-13 22:41                                               ` Yinghai Lu
2008-11-13 22:58                                                 ` Andrew Morton
2008-11-13 23:15                                                   ` Mike Travis
2008-11-13 23:24                                                     ` Yinghai Lu
2008-11-14  0:20                                                       ` Mike Travis
2008-11-14  0:29                                                         ` Yinghai Lu
2008-11-14  6:29                                                   ` [PATCH] sparse_irq aka dyn_irq v14 Yinghai Lu
2008-11-14  6:46                                                     ` Andrew Morton
2008-11-15  9:05                                                       ` Yinghai Lu
2008-11-13 22:19                                           ` [PATCH] sparse_irq aka dyn_irq v13 Paul Mackerras
2008-11-13 22:23                                             ` David Miller
2008-11-13 23:11                                               ` Mike Travis
2008-11-13 23:14                                                 ` David Miller
2008-11-14  0:15                                                   ` Mike Travis
2008-11-14  0:21                                                     ` David Miller
2008-11-14  0:39                                                       ` Mike Travis
2008-11-14  2:37                                                         ` David Miller
2008-11-14  3:06                                                           ` Mike Travis [this message]
2008-11-16 20:58                                           ` Benjamin Herrenschmidt
2008-11-16 23:44                                             ` Yinghai Lu
2008-11-16 23:48                                               ` H. Peter Anvin
2008-11-16 23:54                                                 ` Yinghai Lu
2008-11-16 23:59                                                   ` H. Peter Anvin
2008-11-17  0:21                                                     ` Yinghai Lu
2008-11-17  0:26                                                       ` H. Peter Anvin
2008-11-17  0:36                                                         ` Yinghai Lu
2008-11-17  0:48                                                           ` H. Peter Anvin
2008-11-17  0:58                                                             ` Yinghai Lu
2008-11-17  1:00                                                               ` H. Peter Anvin
2008-11-17  2:03                                                                 ` Mike Travis
2008-11-17  4:27                                                                 ` Benjamin Herrenschmidt
2008-11-17  4:26                                                         ` Benjamin Herrenschmidt
2008-11-17 20:25                                                       ` Jeremy Fitzhardinge
2008-11-17  4:25                                                     ` Benjamin Herrenschmidt
2008-11-17  4:22                                                   ` Benjamin Herrenschmidt
2008-11-17  1:51                                                 ` Mike Travis
2008-11-17  4:39                                                   ` H. Peter Anvin
2008-11-17  4:22                                                 ` Benjamin Herrenschmidt
2008-11-17  4:42                                                   ` H. Peter Anvin
2008-11-17  6:52                                                     ` Benjamin Herrenschmidt
2008-11-09  8:36                         ` [RFC PATCH] sparse_irq aka dyn_irq H. Peter Anvin
2008-11-09  7:50                       ` Cyrill Gorcunov

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