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

[Rusty Russell]

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.
-- 
 ccontrol: http://ccontrol.ozlabs.org

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