On Fri, Jul 11, 2014 at 03:06:55PM +0100, Tvrtko Ursulin wrote:
On 07/11/2014 03:02 PM, Daniel Vetter wrote:
On Fri, Jul 11, 2014 at 12:06:02PM +0100, Chris Wilson wrote:
On Fri, Jul 11, 2014 at 12:00:26PM +0100, Tvrtko Ursulin wrote:
On 07/11/2014 11:28 AM, Chris Wilson wrote:
During the
During the range invalidate, we walk the list of buffers associated with
the mmu_notifer and find the ones that overlap the range. An
optimisation is made to speed up the iteration by assuming the previous
iter is still valid whilst the tree is unmodified. This exposes a bug
when a range
On 07/11/2014 11:28 AM, Chris Wilson wrote:
During the range invalidate, we walk the list of buffers associated with
the mmu_notifer and find the ones that overlap the range. An
optimisation is made to speed up the iteration by assuming the previous
iter is still valid whilst the tree is
On Fri, Jul 11, 2014 at 12:00:26PM +0100, Tvrtko Ursulin wrote:
On 07/11/2014 11:28 AM, Chris Wilson wrote:
During the range invalidate, we walk the list of buffers associated with
the mmu_notifer and find the ones that overlap the range. An
optimisation is made to speed up the iteration by
On 07/11/2014 12:06 PM, Chris Wilson wrote:
On Fri, Jul 11, 2014 at 12:00:26PM +0100, Tvrtko Ursulin wrote:
On 07/11/2014 11:28 AM, Chris Wilson wrote:
During the range invalidate, we walk the list of buffers associated with
the mmu_notifer and find the ones that overlap the range. An
On Fri, Jul 11, 2014 at 12:31:12PM +0100, Tvrtko Ursulin wrote:
On 07/11/2014 12:06 PM, Chris Wilson wrote:
On Fri, Jul 11, 2014 at 12:00:26PM +0100, Tvrtko Ursulin wrote:
But it will be interesting to know what code managed to trigger this
race, because as we discussed on IRC it would
On 07/11/2014 12:35 PM, Chris Wilson wrote:
On Fri, Jul 11, 2014 at 12:31:12PM +0100, Tvrtko Ursulin wrote:
On 07/11/2014 12:06 PM, Chris Wilson wrote:
On Fri, Jul 11, 2014 at 12:00:26PM +0100, Tvrtko Ursulin wrote:
But it will be interesting to know what code managed to trigger this
race,
On Fri, Jul 11, 2014 at 12:06:02PM +0100, Chris Wilson wrote:
On Fri, Jul 11, 2014 at 12:00:26PM +0100, Tvrtko Ursulin wrote:
On 07/11/2014 11:28 AM, Chris Wilson wrote:
During the range invalidate, we walk the list of buffers associated with
the mmu_notifer and find the ones that
On 07/11/2014 03:02 PM, Daniel Vetter wrote:
On Fri, Jul 11, 2014 at 12:06:02PM +0100, Chris Wilson wrote:
On Fri, Jul 11, 2014 at 12:00:26PM +0100, Tvrtko Ursulin wrote:
On 07/11/2014 11:28 AM, Chris Wilson wrote:
During the range invalidate, we walk the list of buffers associated with
the
