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SubjectRe: [PATCH] Fix ARCH=um segfault on x86-64.
On Fri, Mar 06, 2009 at 10:51:12AM +0100, Geert Uytterhoeven wrote:
>On Fri, Mar 6, 2009 at 10:50, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>> On Fri, Mar 6, 2009 at 09:48, Américo Wang <xiyou.wangcong@gmail.com> wrote:
>>> On Fri, Mar 06, 2009 at 12:42:14AM -0600, Rob Landley wrote:
>>>>Apparently, nobody other than me has ever attempted to use User Mode Linux
>>>>built from 2.6.28 on x86-64, because it doesn't work.  It still doesn't work
>>>>in current git.  I complained about it not working back in January:
>>>>
>>>>http://sourceforge.net/mailarchive/forum.php?thread_name=200901130159.04389.rob%40landley.net&forum_name=user-
>>>>mode-linux-devel
>>>>http://lkml.indiana.edu/hypermail/linux/kernel/0901.2/00669.html
>>>>
>>>>And today, I bothered to track down why.
>>>>
>>>>This is the commit that broke it, when Peter Anvin merged x86 and x86-64 for
>>>>ARCH=um: http://kernel.org/hg/linux-2.6/rev/117978
>>>>
>>>>Here's a patch that fixes it for me:
>>>
>>> Thanks, Bob!
>>
>> I've just did a build of plain v2.6.28 on amd64 aka x86-64. The
>> resulting image ran fine.
>
>So I'm wondering: why does it work for me and not for you?
>

It does work well x86_64, but my question is that whether this will
break i386 or not, since before, CONFIG_3_LEVEL_PGTABLES depends on
EXPERIMENTAL on i386, this patch removes it.

--
Do what you love, f**k the rest! F**k the regulations!

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