[Intel-gfx] [PATCH 2/2] lockdep: Up MAX_LOCKDEP_CHAINS

[Daniel Vetter]

On Tue, Nov 28, 2017 at 05:22:00PM +0000, Chris Wilson wrote:
> Quoting Daniel Vetter (2017-11-28 17:07:07)
> > cross-release ftl
> 
> Fwiw, this isn't cross-release but us reloading the module many times,
> creating a whole host of new lockclasses. Even more fun is when the
> module gets a slightly different address and the new lock address hashes
> into an old lock...
> 
> I did think about a module-hook to revoke the stale lockclasses, but
> that still leaves all the hashed chains.
> 
> This particular nuisance was temporarily pushed back by teaching igt not
> to reload i915.ko on a whim.

Ah ... Added your explanation to the commit message, and I guess that just
means we'll have to carry it ourselves :-/

I'll still send them out if CI approves to lockdep folks, just as an fyi.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch