Subject: Re: [PATCH] ppc64: 64K pages support
From: Badari Pulavarty <pbadari@us.ibm.com>
To: Sonny Rao <sonny.rao@gmail.com>
Cc: Olaf Hering <olh@suse.de>,
       Benjamin Herrenschmidt <benh@kernel.crashing.org>,
       Andrew Morton <akpm@osdl.org>,
       Linux Kernel list <linux-kernel@vger.kernel.org>,
       Linus Torvalds <torvalds@osdl.org>,
       linuxppc64-dev <linuxppc64-dev@ozlabs.org>
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Date: Wed, 16 Nov 2005 16:33:55 -0800
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On Wed, 2005-11-16 at 17:57 -0600, Sonny Rao wrote:
> On 11/16/05, Badari Pulavarty <pbadari@us.ibm.com> wrote:
>         On Thu, 2005-11-17 at 00:08 +0100, Olaf Hering wrote:
>         >  On Wed, Nov 09, Badari Pulavarty wrote:
>         >
>         > > On Thu, 2005-11-10 at 09:01 +1100, Benjamin Herrenschmidt
>         wrote:
>         > > > > I didn't have any luck on 2.6.14-git12 either.
>         > > > > I tried 64k page support on my P570.
>         > > > >
>         > > > > Here are the console messages:
>         > > >
>         > > > What distro do you use in userland ? Some older glibc
>         versions have a 
>         > > > bug that cause issues with 64k pages, though it
>         generally happens with
>         > > > login blowing up, not init ...
>         > >
>         > > SLES9 (could be SLES9 SP1).
>         >
>         > Can you double check? rpm -qi glibc | head should be
>         enough. 
>         > Would be bad if SP2 or SP3 does not work with 64k.
>         >
>         
>         I think I am using SLES9. Planning to update to SP3.
> 
>  
> Badari, the problem is with your toolchain.. 
> the binutils in SLES9 is too old (even in SP3)
> 
> The issue is that it cannot align something (the zero page I think) to
> 64kb .
> 
> SLES9 SP3 has "GNU ld version 2.15.90.0.1.1 20040303 (SuSE Linux)"
> 
> But I have to use binutils 2.15.94 to make a 64kb kernel boot
> properly 
> (I can give you the package offline if you need)

Thank you Sonny. I updated my binutils package and 64k pagesize
kernel works fine for me (atleast booted fine).

Thanks,
Badari

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