From: Andrea Arcangeli <andrea@suse.de>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: ehrhardt@mathematik.uni-ulm.de, linux-kernel@vger.kernel.org
Subject: Re: VM-related Oops: 2.4.15pre1
Date: Sun, 18 Nov 2001 05:10:23 +0100 [thread overview]
Message-ID: <20011118051023.A25232@athlon.random> (raw)
In-Reply-To: <20011116142344.A7316@netnation.com> <20011117225327.5368.qmail@thales.mathematik.uni-ulm.de> <200111180312.fAI3CpG01076@penguin.transmeta.com>
In-Reply-To: <200111180312.fAI3CpG01076@penguin.transmeta.com>; from torvalds@transmeta.com on Sat, Nov 17, 2001 at 07:12:51PM -0800
On Sat, Nov 17, 2001 at 07:12:51PM -0800, Linus Torvalds wrote:
> In article <20011117225327.5368.qmail@thales.mathematik.uni-ulm.de> you write:
> >
> >I think this one liner (diffed against 2.4.14) could fix this Oops:
>
> It really shouldn't matter - at that point we have the page locked, and
I also agree the patch shouldn't matter, but one suspect thing is the
fact add_to_swap_cache goes to clobber in a non atomic manner the page
lock. so yes, we hold the page lock both in swap_out and in
shrink_cache, but swap_out can drop it for a moment and then later
pretend to be the onwer again without a real trylock.
Andrea
next prev parent reply other threads:[~2001-11-18 4:11 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-16 22:23 VM-related Oops: 2.4.15pre1 Simon Kirby
2001-11-17 22:53 ` Christian Ehrhardt
2001-11-18 3:12 ` Linus Torvalds
2001-11-18 4:10 ` Andrea Arcangeli [this message]
2001-11-18 6:24 ` Linus Torvalds
2001-11-18 6:37 ` Andrea Arcangeli
2001-11-18 7:31 ` Linus Torvalds
2001-11-18 12:05 ` Alan Cox
2001-11-19 2:02 ` Linus Torvalds
2001-11-19 2:27 ` Linus Torvalds
2001-11-19 18:40 ` kuznet
2001-11-19 10:15 ` Alan Cox
2001-11-19 16:39 ` Linus Torvalds
2001-11-19 18:03 ` Eric W. Biederman
2001-11-19 19:04 ` Linus Torvalds
2001-11-19 23:52 ` John Alvord
2001-11-21 2:31 ` Pavel Machek
[not found] ` <200111180731.fAI7VFa01371@penguin.transmeta.com>
2001-11-18 7:51 ` Andrea Arcangeli
2001-11-18 17:10 ` Horst von Brand
2001-11-19 2:04 ` Linus Torvalds
2001-11-19 3:22 ` Jeff V. Merkey
2001-11-19 8:44 ` David Woodhouse
2001-11-19 16:57 ` Linus Torvalds
2001-11-19 17:56 ` Simon Kirby
2001-11-19 18:03 ` Linus Torvalds
2001-11-19 18:31 ` Simon Kirby
2001-11-19 20:01 ` Marcelo Tosatti
2001-11-19 21:26 ` Linus Torvalds
2001-11-19 21:49 ` Rik van Riel
2001-11-19 22:40 ` Linus Torvalds
2001-11-19 22:59 ` Rik van Riel
2001-11-19 23:03 ` Linus Torvalds
2001-11-20 0:06 ` Rik van Riel
2001-11-20 0:08 ` Linus Torvalds
2001-11-20 0:27 ` Rik van Riel
2001-11-19 23:27 ` Simon Kirby
2001-11-19 23:38 ` Linus Torvalds
2001-11-19 23:52 ` Simon Kirby
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20011118051023.A25232@athlon.random \
--to=andrea@suse.de \
--cc=ehrhardt@mathematik.uni-ulm.de \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@transmeta.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.