Re: Tracing NetBSD sun4v issues

[Sad Clouds <cryintothebluesky%gmail.com@localhost>]

On Fri, 16 Oct 2026 09:36:07 +0100
Sad Clouds <cryintothebluesky%gmail.com@localhost> wrote:

> So it is possible that the above text and data access fault handlers
> are causing corruption somewhere. I also find it suspicious that when
> SEGV occurs there is a data access fault:
> 
> [  65.2929154] 110: data_access_fault(0x154697ed0, 31, 0x40589b50, 0xffffc011, ffffc000, 1) nsaved=0

Palle, the sun4v functions: sun4v_texttrap and sun4v_datatrap in
locore.s did anyone port these verbatim from OpenBSD or Solaris, or are
these NetBSD specific?

The other sun4u versions of these functions appear to be much more
complex and do more stuff. Maybe sun4v functions need additional review
or testing?