On Fri, Oct 07, 2016 at 04:27:49PM +0800, YiPing Xu wrote:
>
>
> On 2016/10/5 2:02, Laura Abbott wrote:
> > On 09/30/2016 01:18 AM, Xu YiPing wrote:
> > > ion_alloc may get into slow path to get free page,
> > > the call stack:
> > >
> > > __alloc_pages_slowpath
> > > ion_page_pool_alloc_pages
On Fri, Oct 07, 2016 at 04:27:49PM +0800, YiPing Xu wrote:
>
>
> On 2016/10/5 2:02, Laura Abbott wrote:
> > On 09/30/2016 01:18 AM, Xu YiPing wrote:
> > > ion_alloc may get into slow path to get free page,
> > > the call stack:
> > >
> > > __alloc_pages_slowpath
> > > ion_page_pool_alloc_pages
On 2016/10/5 2:02, Laura Abbott wrote:
On 09/30/2016 01:18 AM, Xu YiPing wrote:
ion_alloc may get into slow path to get free page,
the call stack:
__alloc_pages_slowpath
ion_page_pool_alloc_pages
alloc_buffer_page
ion_system_heap_allocate
ion_buffer_create <-- hold ion_device->lock
On 2016/10/5 2:02, Laura Abbott wrote:
On 09/30/2016 01:18 AM, Xu YiPing wrote:
ion_alloc may get into slow path to get free page,
the call stack:
__alloc_pages_slowpath
ion_page_pool_alloc_pages
alloc_buffer_page
ion_system_heap_allocate
ion_buffer_create <-- hold ion_device->lock
On 09/30/2016 01:18 AM, Xu YiPing wrote:
ion_alloc may get into slow path to get free page,
the call stack:
__alloc_pages_slowpath
ion_page_pool_alloc_pages
alloc_buffer_page
ion_system_heap_allocate
ion_buffer_create <-- hold ion_device->lock
ion_alloc
after that, kernel invokes low-memory
On 09/30/2016 01:18 AM, Xu YiPing wrote:
ion_alloc may get into slow path to get free page,
the call stack:
__alloc_pages_slowpath
ion_page_pool_alloc_pages
alloc_buffer_page
ion_system_heap_allocate
ion_buffer_create <-- hold ion_device->lock
ion_alloc
after that, kernel invokes low-memory
ion_alloc may get into slow path to get free page,
the call stack:
__alloc_pages_slowpath
ion_page_pool_alloc_pages
alloc_buffer_page
ion_system_heap_allocate
ion_buffer_create <-- hold ion_device->lock
ion_alloc
after that, kernel invokes low-memory killer to kill some apps in
order to free
ion_alloc may get into slow path to get free page,
the call stack:
__alloc_pages_slowpath
ion_page_pool_alloc_pages
alloc_buffer_page
ion_system_heap_allocate
ion_buffer_create <-- hold ion_device->lock
ion_alloc
after that, kernel invokes low-memory killer to kill some apps in
order to free
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