amd64/141112: Kernel panic when booting with any sATA drives

Antti Myller techman at
Wed Dec 2 16:20:04 UTC 2009

>Number:         141112
>Category:       amd64
>Synopsis:       Kernel panic when booting with any sATA drives
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-amd64
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Dec 02 16:20:03 UTC 2009
>Originator:     Antti Myller
>Release:        8.0-RELEASE
FreeBSD 8.0-RELEASE FreeBSD 8.0-RELEASE #1: Tue Dec  1 22:37:58 EET 2009     am at  amd64

A system with /boot and / mounts on primary pATA master has a kernel panic during booting (fatal trap 12) if there is any sATA drives in any sATA ports. If booted with ACPI off or in safe mode system fails to find any drives and root mount fails.

Motherboard is ASRock K8 Combo-Z and has the latest BIOS revision. Recompiled kernel with AHCI on while using loader.conf options: hint.ahci.X.msi="0", hint.ahcich.X.pm_level="0" and hint.ahcich.X.sata_rev="1" does boot not either if sATA drives are attached.

Problem happens everytime if there is any sATA drive in any sATA port.
Problem can be fixed only by removing all sATA drives completely either from BIOS settings or physically.


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