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List:       freebsd-hackers
Subject:    Re: Boot hang on ryzen based notebook
From:       Rozhuk Ivan <rozhuk.im () gmail ! com>
Date:       2019-04-03 9:11:52
Message-ID: 20190403121152.7f7f915c () rimwks
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On Wed, 3 Apr 2019 09:05:22 +0200
Yamagi Burmeister <lists@yamagi.org> wrote:

> > > You wrote "apic.0.disabled", not "acpi.0.disabled". Are you sure
> > > you wrote the correct command? You do not want to disable the APIC
> > > (interrupt controller), but the ACPI (control and power
> > > interface).  
> > 
> > hint.acpi.0.disabled="1" - 11.13.1.
> > Then set:
> > panic: running without device atpic requires a local APIC  
> 
> Most modern hardware won't boot without ACPI. But I can get my Lenovo
> E485 to boot with Linux and FreeBSD if I disable IOMMU aupport in the
> BIOS / UEFI.
> 

With hw.pci.mcfg=0 - boot ok.
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