From: Christoph Hellwig <h...@lst.de> Date: Tue, 22 Aug 2017 08:35:05 +0200
> On Mon, Aug 21, 2017 at 01:35:49PM -0700, David Miller wrote: >> I ask because the commit log message indicates that this failure is >> not expected to ever happen on SMP. > > I fear my commit message (but not the code) might be wrong. > irq_create_affinity_masks can return NULL any time we don't have any > affinity masks. I've already had a discussion about this elsewhere > with Bjorn, and I suspect we need to kill the warning or move it > to irq_create_affinity_masks only for genuine failure cases. This is a rather large machine with 64 or more cpus and several NUMA nodes. Why wouldn't there be any affinity masks available? That's why I want to root cause this.
