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From: Hugh Dickins <hugh.dickins@tiscali.co.uk>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Nick Piggin <npiggin@suse.de>, Andi Kleen <andi@firstfloor.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH] HWPOISON: remove the unsafe __set_page_locked()
Date: Sat, 26 Sep 2009 12:58:53 +0100 (BST)	[thread overview]
Message-ID: <Pine.LNX.4.64.0909261251090.15781@sister.anvils> (raw)
In-Reply-To: <20090926114806.GA12419@localhost>

On Sat, 26 Sep 2009, Wu Fengguang wrote:
> 
> However we may well end up to accept the fact that "we just cannot do
> hwpoison 100% correct", and settle with a simple and 99% correct code.

I thought we already accepted that: you cannot do hwpoison 100% correct
(or not without a radical rewrite of the OS); you're just looking to
get it right almost all the time on those systems which have almost
all their pages in pagecache or userspace or free.

Hugh

WARNING: multiple messages have this Message-ID (diff)
From: Hugh Dickins <hugh.dickins@tiscali.co.uk>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Nick Piggin <npiggin@suse.de>, Andi Kleen <andi@firstfloor.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH] HWPOISON: remove the unsafe __set_page_locked()
Date: Sat, 26 Sep 2009 12:58:53 +0100 (BST)	[thread overview]
Message-ID: <Pine.LNX.4.64.0909261251090.15781@sister.anvils> (raw)
In-Reply-To: <20090926114806.GA12419@localhost>

On Sat, 26 Sep 2009, Wu Fengguang wrote:
> 
> However we may well end up to accept the fact that "we just cannot do
> hwpoison 100% correct", and settle with a simple and 99% correct code.

I thought we already accepted that: you cannot do hwpoison 100% correct
(or not without a radical rewrite of the OS); you're just looking to
get it right almost all the time on those systems which have almost
all their pages in pagecache or userspace or free.

Hugh

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  reply	other threads:[~2009-09-26 11:58 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-26  3:15 [RFC][PATCH] HWPOISON: remove the unsafe __set_page_locked() Wu Fengguang
2009-09-26  3:15 ` Wu Fengguang
2009-09-26  3:49 ` Andi Kleen
2009-09-26  3:49   ` Andi Kleen
2009-09-26 10:52   ` Wu Fengguang
2009-09-26 10:52     ` Wu Fengguang
2009-09-26 11:31     ` Wu Fengguang
2009-09-26 11:31       ` Wu Fengguang
2009-09-27 10:47       ` Wu Fengguang
2009-09-27 10:47         ` Wu Fengguang
2009-09-27 19:20         ` Nick Piggin
2009-09-27 19:20           ` Nick Piggin
2009-09-28  8:44           ` Wu Fengguang
2009-09-28  8:44             ` Wu Fengguang
2009-09-29  5:16             ` Wu Fengguang
2009-09-29  5:16               ` Wu Fengguang
2009-10-01  2:02             ` Nick Piggin
2009-10-01  2:02               ` Nick Piggin
2009-10-02 10:54               ` Wu Fengguang
2009-10-02 10:54                 ` Wu Fengguang
2009-09-26 11:09 ` Hugh Dickins
2009-09-26 11:09   ` Hugh Dickins
2009-09-26 11:48   ` Wu Fengguang
2009-09-26 11:48     ` Wu Fengguang
2009-09-26 11:58     ` Hugh Dickins [this message]
2009-09-26 11:58       ` Hugh Dickins
2009-09-26 15:05     ` Andi Kleen
2009-09-26 15:05       ` Andi Kleen
2009-09-26 19:12       ` Nick Piggin
2009-09-26 19:12         ` Nick Piggin
2009-09-26 19:14     ` Nick Piggin
2009-09-26 19:14       ` Nick Piggin
2009-09-26 19:06   ` Nick Piggin
2009-09-26 19:06     ` Nick Piggin
2009-09-26 21:32     ` Andi Kleen
2009-09-26 21:32       ` Andi Kleen
2009-09-27 16:26       ` Hugh Dickins
2009-09-27 16:26         ` Hugh Dickins
2009-09-27 19:22         ` Nick Piggin
2009-09-27 19:22           ` Nick Piggin
2009-09-27 21:57           ` Hugh Dickins
2009-09-27 21:57             ` Hugh Dickins
2009-09-27 23:01             ` Nick Piggin
2009-09-27 23:01               ` Nick Piggin
2009-09-28  1:19               ` Andi Kleen
2009-09-28  1:19                 ` Andi Kleen
2009-09-28  1:52                 ` Wu Fengguang
2009-09-28  1:52                   ` Wu Fengguang
2009-09-28  2:57                 ` Nick Piggin
2009-09-28  2:57                   ` Nick Piggin
2009-09-28  4:11                   ` Andi Kleen
2009-09-28  4:11                     ` Andi Kleen
2009-09-28  4:29                     ` Nick Piggin
2009-09-28  4:29                       ` Nick Piggin

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