Getting 'vm_thread_new: kstack allocation failed' errors after latest drm updates.

[Richard Todd]

On Mon, Dec 22, 2008 at 03:27:37PM -0600, Alan Cox wrote:
> What does "sysctl vm.kvm_free vm.kvm_size" report to you on a kernel that
> boots?

On the "good" kernel: 
vm.kvm_free: 8384512
vm.kvm_size: 2147479552

And on the "bad" kernel:
vm.kvm_free: 0
vm.kvm_size: 2147479552

Not quite sure what "kvm_free" means, but a value of 0 for any "free" count 
can't be good, right?