From: Andrea Arcangeli <andrea@suse.de>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Jeff Dike <jdike@karaya.com>,
user-mode-linux-user@lists.sourceforge.net,
linux-kernel@vger.kernel.org
Subject: Re: user-mode port 0.44-2.4.7
Date: Mon, 23 Jul 2001 18:45:28 +0200 [thread overview]
Message-ID: <20010723184528.R822@athlon.random> (raw)
In-Reply-To: <20010723175635.L822@athlon.random> <Pine.LNX.4.33.0107230931590.12978-100000@penguin.transmeta.com>
In-Reply-To: <Pine.LNX.4.33.0107230931590.12978-100000@penguin.transmeta.com>; from torvalds@transmeta.com on Mon, Jul 23, 2001 at 09:33:28AM -0700
On Mon, Jul 23, 2001 at 09:33:28AM -0700, Linus Torvalds wrote:
>
> On Mon, 23 Jul 2001, Andrea Arcangeli wrote:
> >
> > in my tree I did some further cleanup, here the ones that you can
> > interested about:
>
> Andrea, please drop the "volatile" from xtime. It's bogus.
it's the other way around, it's needed and gcc trapped a kernel bug.
If the contents of memory not declared volatile changes under GCC (like
it can happen right now for xtime since it's declared non volatile), gcc
has the full rights to crash the kernel at runtime.
I know there are other bugs like this one in the kernel, but this is not
a good reason to fix the known ones IMHO.
Andrea
next prev parent reply other threads:[~2001-07-23 16:45 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-23 5:08 user-mode port 0.44-2.4.7 Jeff Dike
2001-07-23 15:56 ` Andrea Arcangeli
2001-07-23 15:59 ` Andrea Arcangeli
2001-07-23 16:17 ` Andrea Arcangeli
2001-07-23 16:51 ` Andrea Arcangeli
2001-07-23 16:33 ` Linus Torvalds
2001-07-23 16:45 ` Andrea Arcangeli [this message]
2001-07-23 17:32 ` Linus Torvalds
2001-07-23 17:50 ` Andrea Arcangeli
2001-07-23 18:11 ` Linus Torvalds
2001-07-23 18:27 ` Andrea Arcangeli
2001-07-23 20:00 ` Linus Torvalds
2001-07-23 20:15 ` Jonathan Lundell
2001-07-23 22:51 ` Linus Torvalds
2001-07-24 3:45 ` Jonathan Lundell
2001-07-24 15:41 ` Davide Libenzi
2001-07-24 15:46 ` Alexander Viro
2001-07-24 16:01 ` Davide Libenzi
2001-07-24 16:08 ` Alexander Viro
2001-07-24 16:52 ` Davide Libenzi
2001-07-24 16:59 ` Linus Torvalds
2001-07-24 17:31 ` Davide Libenzi
2001-07-24 17:38 ` Linus Torvalds
2001-07-24 18:07 ` Anton Altaparmakov
2001-07-23 20:44 ` Chris Friesen
2001-07-23 21:11 ` Andrea Arcangeli
2001-07-23 21:50 ` Richard Gooch
2001-07-23 22:09 ` Andrea Arcangeli
2001-07-23 13:20 ` Rob Landley
2001-07-23 22:27 ` Andrea Arcangeli
2001-07-23 17:50 ` Rob Landley
2001-07-23 23:47 ` Richard Gooch
2001-07-24 0:04 ` Andrea Arcangeli
2001-07-24 9:02 ` Jan Hubicka
2001-07-24 15:35 ` Linus Torvalds
2001-07-24 16:04 ` Linus Torvalds
2001-07-25 22:49 ` Andrea Arcangeli
2001-07-25 23:16 ` Linus Torvalds
2001-07-25 23:37 ` Chris Friesen
2001-07-26 18:28 ` Jan Hubicka
2001-07-26 18:35 ` Alan Cox
2001-07-23 22:53 ` Linus Torvalds
2001-07-23 23:13 ` Alan Cox
2001-07-23 20:25 ` Jeff Dike
-- strict thread matches above, loose matches on Subject: below --
2001-07-25 19:03 James W. Lake
[not found] <no.id>
2001-07-23 20:57 ` Alan Cox
2001-07-23 21:14 ` Chris Friesen
2001-07-25 19:12 ` Alan Cox
2001-07-25 23:49 ` Alan Cox
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