From: Thomas Gleixner <tglx@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Stable Kernel Team <stable@kernel.org>,
Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Adrian Bunk <bunk@stusta.de>
Subject: Re: [BUG] __copy_to_user_inatomic broken on non Pentium machines
Date: Sun, 25 Mar 2007 21:41:11 +0200 [thread overview]
Message-ID: <1174851671.3892.2.camel@chaos> (raw)
In-Reply-To: <Pine.LNX.4.64.0703251039170.6730@woody.linux-foundation.org>
On Sun, 2007-03-25 at 11:14 -0700, Linus Torvalds wrote:
> > Environment: Pre Pentium systems, (boot_cpu_data.wp_works_ok == 0)
>
> This shouldn't be "pre-pentium", afaik. WP-works-ok on i486 too. I think
> only the original i386 had this bug ("feature").
>
> But I agree, it does seem to be broken on such machines (I assume you
> don't actually have one, but just tested by forcing it by hand ;)
Yes, it's a genuine i386 embedded system and AFAIK the same feature is
available on 486 clones. i386 and Co are still in used in the embedded
space.
tglx
next prev parent reply other threads:[~2007-03-25 19:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-25 8:07 [BUG] __copy_to_user_inatomic broken on non Pentium machines Thomas Gleixner
2007-03-25 18:14 ` Linus Torvalds
2007-03-25 18:30 ` Ingo Molnar
2007-03-25 19:41 ` Thomas Gleixner [this message]
2007-04-02 12:25 ` [PATCH] i386: fix file_read_actor() and pipe_read() for original i386 systems Thomas Gleixner
2007-04-02 12:34 ` Ingo Molnar
2007-04-13 23:06 ` Adrian Bunk
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