IMPORTANT: This project was completed by Taylor R. Campbell. You may still contact the people above for details, but please do not submit an application for this project.

From the bug: "I was wondering why my machine could no longer resume. Turns out it's because I enabled tpm(4) in the BIOS.

With a disabled tpm... The machine can reliably resume."

Related: the OpenBSD tpm(4) driver might not share this failure.