Re: [BUG] __copy_to_user_inatomic broken on non Pentium machines

From: Thomas Gleixner
Date: Sun Mar 25 2007 - 15:42:42 EST


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




-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/