On Wed, Mar 24, 2021 at 06:16:44PM +0100, Daniel Vetter wrote:
> On Wed, Mar 24, 2021 at 07:15:36PM +0200, Ville Syrjälä wrote:
> > On Wed, Mar 24, 2021 at 06:00:12PM +0100, Daniel Vetter wrote:
> > > On Tue, Mar 23, 2021 at 04:50:52PM +0100, Maarten Lankhorst wrote:
> > > > We get a lockdep splat
On Wed, Mar 24, 2021 at 07:15:36PM +0200, Ville Syrjälä wrote:
> On Wed, Mar 24, 2021 at 06:00:12PM +0100, Daniel Vetter wrote:
> > On Tue, Mar 23, 2021 at 04:50:52PM +0100, Maarten Lankhorst wrote:
> > > We get a lockdep splat when the reset mutex is held, because it can be
> > > taken from fence_
On Wed, Mar 24, 2021 at 06:00:12PM +0100, Daniel Vetter wrote:
> On Tue, Mar 23, 2021 at 04:50:52PM +0100, Maarten Lankhorst wrote:
> > We get a lockdep splat when the reset mutex is held, because it can be
> > taken from fence_wait. This conflicts with the mmu notifier we have,
> > because we recu
On Tue, Mar 23, 2021 at 04:50:52PM +0100, Maarten Lankhorst wrote:
> We get a lockdep splat when the reset mutex is held, because it can be
> taken from fence_wait. This conflicts with the mmu notifier we have,
> because we recurse between reset mutex and mmap lock -> mmu notifier.
>
> Remove this
We get a lockdep splat when the reset mutex is held, because it can be
taken from fence_wait. This conflicts with the mmu notifier we have,
because we recurse between reset mutex and mmap lock -> mmu notifier.
Remove this recursion by calling revoke_mmaps before taking the lock.
The reset code st
