From: "Hong H. Pham"
In pte_alloc_one(), pgtable_page_ctor() is passed an address that has
not been converted by page_address() to the newly allocated PTE page.
When the PTE is freed, __pte_free_tlb() calls pgtable_page_dtor()
with an address to the PTE page that has been converted by page_addre
On Sat, 2013-12-07 at 09:06 -0500, Hong H. Pham wrote:
> diff --git a/arch/powerpc/include/asm/pgalloc-32.h
> b/arch/powerpc/include/asm/pgalloc-32.h
> index 27b2386..842846c 100644
> --- a/arch/powerpc/include/asm/pgalloc-32.h
> +++ b/arch/powerpc/include/asm/pgalloc-32.h
> @@ -84,10 +84,8 @@ st
On Sun, 2013-12-08 at 07:27 +1100, Benjamin Herrenschmidt wrote:
> On Sat, 2013-12-07 at 09:06 -0500, Hong H. Pham wrote:
>
> > diff --git a/arch/powerpc/include/asm/pgalloc-32.h
> > b/arch/powerpc/include/asm/pgalloc-32.h
> > index 27b2386..842846c 100644
> > --- a/arch/powerpc/include/asm/pgall
Benjamin Herrenschmidt writes:
> On Sat, 2013-12-07 at 09:06 -0500, Hong H. Pham wrote:
>
>> diff --git a/arch/powerpc/include/asm/pgalloc-32.h
>> b/arch/powerpc/include/asm/pgalloc-32.h
>> index 27b2386..842846c 100644
>> --- a/arch/powerpc/include/asm/pgalloc-32.h
>> +++ b/arch/powerpc/include
"Hong H. Pham" writes:
> From: "Hong H. Pham"
>
> In pte_alloc_one(), pgtable_page_ctor() is passed an address that has
> not been converted by page_address() to the newly allocated PTE page.
>
> When the PTE is freed, __pte_free_tlb() calls pgtable_page_dtor()
> with an address to the PTE page
* Hong H. Pham | 2013-12-07 09:06:33 [-0500]:
>On PPC32, only SMP kernels are affected.
>
>On PPC64, only SMP kernels with 4K page size are affected.
$ uname -a
Linux mpc8536-1 3.12.1-rt3-00281-g9de268d #76 SMP PREEMPT RT Fri Nov 22
16:53:05 CET 2013 ppc GNU/Linux
$ uptime
22:01:10 up 22 days,
