On Wed, 2 Nov 2016, Ray Phillips wrote:
In this case there was no pressure from users to get it working again, but there could have been. Is there any way to tell beforehand if an upgrade to the system will break existing binaries?
That should not happen by definition in minor updates. It would be interesting to know what changed that caused this error. Do you still have the old binary and try running ktrace/kdump? - Hubert