On Tue, 12 Apr 2011 09:30:22 -0700, Ben Widawsky wrote: > I am going to spend at least a day tracking down, and hopefully fixing > warnings if you agree with my next statement that it is in fact a > problem. My hope is there aren't too many cases. I can't see how we can survive without using exactly one lock covering the wake locks on SNB. Has someone tried sticking a simple spinlock around the whole sequence (force_wake_get, op, force_wake_put)? -- keith.packard@intel.com