On 10/05/2018 18:15, vinayak menon wrote:
> On Tue, Apr 17, 2018 at 8:03 PM, Laurent Dufour
> wrote:
>> pte_unmap_same() is making the assumption that the page table are still
>> around because the mmap_sem is held.
>> This is no more the case when running a speculative page fault and
>> additio
On Tue, Apr 17, 2018 at 8:03 PM, Laurent Dufour
wrote:
> pte_unmap_same() is making the assumption that the page table are still
> around because the mmap_sem is held.
> This is no more the case when running a speculative page fault and
> additional check must be made to ensure that the final page
On Mon, Apr 30, 2018 at 04:07:30PM +0200, Laurent Dufour wrote:
> On 23/04/2018 08:31, Minchan Kim wrote:
> > On Tue, Apr 17, 2018 at 04:33:12PM +0200, Laurent Dufour wrote:
> >> pte_unmap_same() is making the assumption that the page table are still
> >> around because the mmap_sem is held.
> >> T
On 23/04/2018 08:31, Minchan Kim wrote:
> On Tue, Apr 17, 2018 at 04:33:12PM +0200, Laurent Dufour wrote:
>> pte_unmap_same() is making the assumption that the page table are still
>> around because the mmap_sem is held.
>> This is no more the case when running a speculative page fault and
>> addit
On Tue, Apr 17, 2018 at 04:33:12PM +0200, Laurent Dufour wrote:
> pte_unmap_same() is making the assumption that the page table are still
> around because the mmap_sem is held.
> This is no more the case when running a speculative page fault and
> additional check must be made to ensure that the fi
pte_unmap_same() is making the assumption that the page table are still
around because the mmap_sem is held.
This is no more the case when running a speculative page fault and
additional check must be made to ensure that the final page table are still
there.
This is now done by calling pte_spinloc
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