From: Nigel Cunningham <ncunningham@users.sourceforge.net>
To: Linux Memory Management <linux-mm@kvack.org>
Subject: Can a page be HighMem without having the HighMem flag set?
Date: Fri, 23 Jan 2004 15:26:53 +1300 [thread overview]
Message-ID: <1074824487.12774.185.camel@laptop-linux> (raw)
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Hi.
I guess the subject says it all, but I'll give more detail:
I'm working on Suspend on a 8 cpu ("8 way"?) SMP box at OSDL, which has
something in excess of 4GB, but I'm only using 4 at the moment:
Warning only 4GB will be used.
Use a PAE enabled kernel.
3200MB HIGHMEM available.
896MB LOWMEM available.
When suspending, I am seeing pages that don't have the HighMem flag set,
but for which page_address returns zero.
I looked at kmap, and noticed that it tests for page <
highmem_start_page; I guess this is the way to do it?
Regards,
Nigel
--
My work on Software Suspend is graciously brought to you by
LinuxFund.org.
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next reply other threads:[~2004-01-23 2:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-23 2:26 Nigel Cunningham [this message]
2004-01-23 2:26 ` Can a page be HighMem without having the HighMem flag set? William Lee Irwin III
2004-01-23 2:46 ` Nigel Cunningham
2004-01-23 3:30 ` Nigel Cunningham
2004-01-23 23:30 ` Nigel Cunningham
2004-01-24 0:04 ` William Lee Irwin III
2004-01-24 0:20 ` Nigel Cunningham
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