From: "Theo de Raadt" <deraadt@openbsd.org>
Subject: Re: sparc64 vs uvm_purge()
To: tech@openbsd.org
Date: Mon, 01 Dec 2025 09:02:06 -0700

I think it is a mistake to add architecture-specific #ifdef to MI
code rather than chasing and fixing the MD issue.

I also have an issue with the idea that this is one architecture
without a problem.  I strongly suspect uvm's behaviour has changed
in a dangerous way which is _already_ _also_ affecting other architectures,
and hiding that is bad.

I suspect the root cause is memory shortage in some layer, triggering
buggy retry sequences.