Messages in this thread | | | Date | Fri, 6 Mar 2009 19:18:34 +0800 | From | Américo Wang <> | Subject | Re: [PATCH] Fix ARCH=um segfault on x86-64. |
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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.
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