Page fault early in boot

To: tech-kern%netbsd.org@localhost
Subject: Page fault early in boot
From: Emmanuel Dreyfus <manu%netbsd.org@localhost>
Date: Fri, 11 Apr 2025 08:22:59 +0000

Hello

I tried to boot NetBSD-current (i386 and amd6), BIOS and UEFI modes) on a 
Dell server, it always panic on a "fatal page fault in supervisor mode"
early during the boot. The backtrace says we went there through
main/fork1/lwp_create/memset

A screenshot is available there:
https://dl.espci.fr/ticket/2a34048a0a9749c68cfb0dc380cc2259

Any idea how to debug that? I expected NetBSD to lack some hardware
support on this recent machine, not to be unable to reach single user 
mode.

-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost

Follow-Ups:
- Re: Page fault early in boot
  - From: Taylor R Campbell
- Re: Page fault early in boot
  - From: Edgar Fuß

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