From: William Lee Irwin III <wli@holomorphy.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>,
linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC] prevent "dd if=/dev/mem" crash
Date: Fri, 17 Oct 2003 17:15:11 -0700 [thread overview]
Message-ID: <20031018001511.GG25291@holomorphy.com> (raw)
In-Reply-To: <20031017165543.2f7e9d49.akpm@osdl.org>
On Fri, Oct 17, 2003 at 04:55:43PM -0700, Andrew Morton wrote:
> This code was conceived before my time and I don't recall seeing much
> discussion, so this is all guesswork..
> I'd say that the high_memory test _is_ superfluous and that if anyone
> cared, we would remove it and establish a temporary pte against the address if
> it was outside the direct-mapped area. But nobody cares enough to have
> done anything about it.
I've heard crash dump people mention it and am trying to convince them
to post their fix(es) here. =)
-- wli
next prev parent reply other threads:[~2003-10-18 0:12 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-17 22:10 Bjorn Helgaas
2003-10-17 22:23 ` Matt Mackall
2003-10-17 22:50 ` Andrew Morton
2003-10-17 23:25 ` Bjorn Helgaas
2003-10-17 23:55 ` Andrew Morton
2003-10-18 0:15 ` William Lee Irwin III [this message]
2003-10-18 0:21 ` David Mosberger
2003-10-18 0:49 ` Andrew Morton
2003-10-18 1:31 ` Matt Chapman
2003-10-18 1:41 ` Andrew Morton
2003-10-18 1:48 ` David Mosberger
2003-10-18 2:01 ` Andrew Morton
2003-10-18 2:01 ` Matt Chapman
2003-10-19 11:25 ` Eric W. Biederman
2003-10-19 19:01 ` William Lee Irwin III
2003-10-20 15:17 ` Bjorn Helgaas
2003-10-20 18:48 ` David Mosberger
2003-10-20 15:58 ` fielding PCI bus timeouts - was: " Rich Altmaier
2003-10-20 17:42 ` [RFC] " Bjorn Helgaas
2003-10-23 21:05 ` Bjorn Helgaas
2003-10-19 18:17 ` Pavel Machek
2003-10-23 8:33 ` Martin Pool
2003-10-23 9:31 ` Zoltan Menyhart
2003-10-17 22:19 Luck, Tony
2003-10-17 22:40 ` Andreas Schwab
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