Re: [patch] i386, vdso=[0|1] boot option and /proc/sys/vm/vdso_enabled

Rusty Russell
2006-05-21T04:38:22Z

On Sat, 2006-05-20 at 03:04 -0700, Zachary Amsden wrote:
> >> Index: linux-2.6.17-rc/include/asm-i386/fixmap.h
> >> ===================================================================
> >> --- linux-2.6.17-rc.orig/include/asm-i386/fixmap.h 2006-03-19 21:53:29.000000000 -0800
> >> +++ linux-2.6.17-rc/include/asm-i386/fixmap.h 2006-05-19 18:16:00.000000000 -0700
> >> @@ -20,7 +20,7 @@
> >> * Leave one empty page between vmalloc'ed areas and
> >> * the start of the fixmap.
> >> */
> >> -#define __FIXADDR_TOP 0xfffff000
> >> +#define __FIXADDR_TOP 0xffbff000
> >>
> >
> > The machine runs OK with that applied and with
> > move-vsyscall-page-out-of-fixmap-into-normal-vma-as-per-mmap.patch not
> > applied.
> >
>
> Err. That implies that there is likely a problem in the kernel patch,
> not in userspace, Let's look more closely at
> move-vsyscall-page-out-of-fixmap-into-normal-vma-as-per-mmap and see if
> there is something missing.

Indeed. And I really hate the idea of a global switch for this, too: it
should just work, or autodetect (esp if it's init that failing, this
might be possible).

Off to find FC1...
Rusty.
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