From: Andrea Arcangeli <andrea@suse.de>
To: Kanoj Sarcar <kanoj@google.engr.sgi.com>
Cc: torvalds@transmeta.com, sct@redhat.com,
Gerhard.Wichert@pdb.siemens.de, Winfried.Gerhard@pdb.siemens.de,
linux-kernel@vger.rutgers.edu, linux-mm@kvack.org
Subject: Re: [bigmem-patch] 4GB with Linux on IA32
Date: Mon, 16 Aug 1999 22:34:56 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.10.9908162217560.4139-100000@laser.random> (raw)
In-Reply-To: <199908161843.LAA76017@google.engr.sgi.com>
On Mon, 16 Aug 1999, Kanoj Sarcar wrote:
>For example, driver and fs code which operate on user pages might
>need to be changed. I hear that Stephen's rawio code made it into
Yes. Or better I don't want to change the lowlevel blockdevice internals
so I give to such code always regular pages to eat.
>2.3.13, so would your patch work if a rawio request was made to
>a range of user pages that were in bigmem area? Also, debuggers
No idea about rawio (I have not yet read the rawio code).
For debuggers I'll add a kmap to access_one_page in ptrace.c, thanks.
>Basically, any code that does a pte_page and similar calls is suspect,
>right?
Yes it is. But only if such code can deal with anonymous or shm or
vmalloced pages.
Andrea
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prev parent reply other threads:[~1999-08-16 20:34 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-08-16 16:29 Andrea Arcangeli
1999-08-16 16:48 ` Matthew Wilcox
1999-08-16 17:19 ` Andrea Arcangeli
1999-08-16 18:43 ` Kanoj Sarcar
1999-08-16 19:43 ` Alan Cox
1999-08-16 20:54 ` Andrea Arcangeli
1999-08-16 22:47 ` Andrea Arcangeli
1999-08-16 23:26 ` Andrea Arcangeli
1999-08-16 23:39 ` Kanoj Sarcar
1999-08-17 0:10 ` Andrea Arcangeli
1999-08-17 6:37 ` Kanoj Sarcar
1999-08-17 6:41 ` Linus Torvalds
1999-08-17 6:50 ` Kanoj Sarcar
1999-08-17 7:03 ` Linus Torvalds
1999-08-17 7:23 ` Linus Torvalds
1999-08-17 11:39 ` Alan Cox
1999-08-26 16:27 ` Andrea Arcangeli
1999-08-17 11:46 ` Alan Cox
1999-08-17 14:26 ` Andrea Arcangeli
1999-08-17 6:39 ` Linus Torvalds
1999-08-17 12:40 ` Andrea Arcangeli
1999-08-17 6:29 ` Linus Torvalds
1999-08-17 12:37 ` Andrea Arcangeli
1999-08-17 14:04 ` Andrea Arcangeli
1999-08-17 8:52 ` Jakub Jelinek
1999-08-17 9:13 ` Pavel Machek
1999-08-18 14:08 ` Andrea Arcangeli
1999-08-19 12:20 ` Andrea Arcangeli
1999-08-16 23:28 ` Kanoj Sarcar
1999-08-16 23:49 ` Andrea Arcangeli
1999-08-17 6:29 ` David S. Miller
1999-08-17 12:38 ` Andrea Arcangeli
1999-08-17 0:17 ` Andrea Arcangeli
1999-08-19 13:33 ` Thierry Vignaud
1999-08-19 16:49 ` Stephen C. Tweedie
1999-08-20 7:35 ` Thierry Vignaud
1999-08-20 9:55 ` Alan Cox
1999-08-20 18:25 ` Linus Torvalds
1999-08-16 20:34 ` Andrea Arcangeli [this message]
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