From: Xavier Bestel <xavier.bestel@free.fr>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Andrea Arcangeli <andrea@suse.de>, linux-kernel@vger.kernel.org
Subject: Re: kswapd and MM overload fix
Date: 06 Jun 2001 09:54:04 +0200 [thread overview]
Message-ID: <991814046.30689.0.camel@nomade> (raw)
In-Reply-To: <Pine.LNX.4.31.0106051650340.10118-100000@penguin.transmeta.com>
In-Reply-To: <Pine.LNX.4.31.0106051650340.10118-100000@penguin.transmeta.com>
On 05 Jun 2001 16:51:13 -0700, Linus Torvalds wrote:
>
>
> On Wed, 6 Jun 2001, Andrea Arcangeli wrote:
> >
> > that would fix it too indeed, OTOH I think changing the empty zone
> > handling in the kernel is beyond the scope of the bugfix (grep for
> > zone->size in mm/*.c :). Certainly making empty zones transparent to the
> > vm sounds much cleaner from a mm/*.c point of view but it may be faster
> > to skip the block with a branch instead of always computing it.
>
> Agreed. I'd like to do both. Having uninitialized random stuff around and
> depending on jumping over code that might access it sounds like really bad
> practice.
Why not explicitely initializing it to weird values, to catch code which
should jump over it (but doesn't) ?
Xav
next prev parent reply other threads:[~2001-06-06 7:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-05 22:44 kswapd and MM overload fix Andrea Arcangeli
2001-06-05 23:16 ` Linus Torvalds
2001-06-05 23:48 ` Andrea Arcangeli
2001-06-05 23:51 ` Linus Torvalds
2001-06-06 7:54 ` Xavier Bestel [this message]
2001-06-05 23:48 ` Roger Larsson
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