On Mon, Dec 8, 2014 at 4:14 PM, Alexandre Courbot
wrote:
> On 11/12/2014 09:39 PM, Thierry Reding wrote:
>>
>> From: Thierry Reding
>>
>> dma_alloc_coherent() returns a kernel virtual address that is part of
>> the linear range. Passing such an address to virt_to_page() is illegal
>> on non-cohe
On 12/08/2014 05:11 PM, Alexandre Courbot wrote:
> On 12/08/2014 04:14 PM, Alexandre Courbot wrote:
>> On 11/12/2014 09:39 PM, Thierry Reding wrote:
>>> From: Thierry Reding
>>>
>>> dma_alloc_coherent() returns a kernel virtual address that is part of
>>> the linear range. Passing such an address
On 12/08/2014 04:14 PM, Alexandre Courbot wrote:
> On 11/12/2014 09:39 PM, Thierry Reding wrote:
>> From: Thierry Reding
>>
>> dma_alloc_coherent() returns a kernel virtual address that is part of
>> the linear range. Passing such an address to virt_to_page() is illegal
>> on non-coherent architec
On 12/08/2014 04:14 PM, Alexandre Courbot wrote:
> On 11/12/2014 09:39 PM, Thierry Reding wrote:
>> From: Thierry Reding
>>
>> dma_alloc_coherent() returns a kernel virtual address that is part of
>> the linear range. Passing such an address to virt_to_page() is illegal
>> on non-coherent architec
On 11/12/2014 09:39 PM, Thierry Reding wrote:
> From: Thierry Reding
>
> dma_alloc_coherent() returns a kernel virtual address that is part of
> the linear range. Passing such an address to virt_to_page() is illegal
> on non-coherent architectures. This causes the kernel to oops on 64-bit
> ARM be
On Wed, Nov 12, 2014 at 06:03:49PM +0100, Arnd Bergmann wrote:
> On Wednesday 12 November 2014 09:18:59 Konrad Rzeszutek Wilk wrote:
> > On Wed, Nov 12, 2014 at 01:39:05PM +0100, Thierry Reding wrote:
> > > From: Thierry Reding
> > >
> > > dma_alloc_coherent() returns a kernel virtual address tha
On Wednesday 12 November 2014 09:18:59 Konrad Rzeszutek Wilk wrote:
> On Wed, Nov 12, 2014 at 01:39:05PM +0100, Thierry Reding wrote:
> > From: Thierry Reding
> >
> > dma_alloc_coherent() returns a kernel virtual address that is part of
> > the linear range. Passing such an address to virt_to_pag
From: Thierry Reding
dma_alloc_coherent() returns a kernel virtual address that is part of
the linear range. Passing such an address to virt_to_page() is illegal
on non-coherent architectures. This causes the kernel to oops on 64-bit
ARM because the struct page * obtained from virt_to_page() poin
On Wed, Nov 12, 2014 at 01:39:05PM +0100, Thierry Reding wrote:
> From: Thierry Reding
>
> dma_alloc_coherent() returns a kernel virtual address that is part of
> the linear range. Passing such an address to virt_to_page() is illegal
> on non-coherent architectures. This causes the kernel to oops
