From: Linus Torvalds <torvalds@transmeta.com>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Cc: Rik van Riel <riel@conectiva.com.br>,
Mike Galbraith <mikeg@wen-online.de>,
linux-mm@kvack.org, lkml <linux-kernel@vger.kernel.org>,
Manfred Spraul <manfred@colorfullife.com>,
MOLNAR Ingo <mingo@chiara.elte.hu>
Subject: Re: 3rd version of R/W mmap_sem patch available
Date: Mon, 19 Mar 2001 22:36:41 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.31.0103192233230.1056-100000@penguin.transmeta.com> (raw)
In-Reply-To: <Pine.LNX.4.21.0103200125480.8873-100000@freak.distro.conectiva>
On Tue, 20 Mar 2001, Marcelo Tosatti wrote:
>
> I'll put pre5 in and try to reproduce the problem (I hitted it while
> running pgbench + shmtest).
I found a case where pre5 will forget to unlock the page_table_lock (in
copy_page_range()), and one place where I had missed the lock altogether
(in ioremap()), so I'll make a pre6 (neither is a problem on UP, though,
so pre5 is not unusable - even on SMP it works really well until you hit
the case where it forgets to unlock ;).
Although I'd prefer to see somebody check out the other architectures, to
do the (pretty trivial) changes to make them support properly threaded
page faults. I'd hate to have two pre-patches without any input from other
architectures..
Linus
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next prev parent reply other threads:[~2001-03-20 6:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.33.0103191802330.2076-100000@mikeg.weiden.de>
2001-03-20 1:56 ` Rik van Riel
2001-03-19 22:46 ` Linus Torvalds
2001-03-20 2:46 ` Linus Torvalds
2001-03-20 4:15 ` Marcelo Tosatti
2001-03-20 6:07 ` Linus Torvalds
2001-03-20 4:29 ` Marcelo Tosatti
2001-03-20 6:36 ` Linus Torvalds [this message]
2001-03-20 7:03 ` Linus Torvalds
2001-03-20 8:19 ` Eric W. Biederman
2001-03-20 15:11 ` Andrew Morton
2001-03-20 15:15 ` Jeff Garzik
2001-03-20 15:16 ` Jeff Garzik
2001-03-20 15:31 ` Andrew Morton
2001-03-21 1:59 ` Eric W. Biederman
2001-03-20 16:08 ` Linus Torvalds
2001-03-20 16:33 ` Andi Kleen
2001-03-20 17:13 ` Linus Torvalds
2001-03-20 19:33 ` Rik van Riel
2001-03-20 22:51 ` Andrew Morton
2001-03-22 10:24 ` Andrew Morton
2001-03-25 14:53 ` [patch] pae-2.4.3-A4 Ingo Molnar
2001-03-25 16:33 ` Russell King
2001-03-25 18:07 ` Linus Torvalds
2001-03-25 18:51 ` Ingo Molnar
[not found] <3AB6C7C2.D1A49FEF@uow.edu.au>
[not found] ` <Pine.LNX.4.31.0103191932240.7210-100000@penguin.transmeta.com>
2001-03-20 12:38 ` 3rd version of R/W mmap_sem patch available Stephen C. Tweedie
2001-03-20 14:02 ` H. Peter Anvin
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