[Bug 291537] atrtc1: Warning: Couldn't map I/O.: system pauses, then reboots on Framework 13 laptop

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 07 Aug 2026 09:35:07 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291537

Martin Nilsson <martin@gneto.com> changed:

           What    |Removed                     |Added
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                 CC|                            |martin@gneto.com

--- Comment #6 from Martin Nilsson <martin@gneto.com> ---
I have the exact same fault with a Supermicro X14SAE-F motherboard and Intel
Core Ultra 7 265 CPU. FreeBSD 15.1-STABE as of today. And 16.0 snapshot from
July 28:th

Hangs solid at atrtc1 - have to press reset.

If I disable atrtc0 & atrtc1 in hints, boot proceeds but then hangs solid at
acpi_syscontainer2

Motherboard have latest available BIOS 2.0 and have IntelĀ® W880 PCH (chipset)

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