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Date:      Wed, 3 Apr 2019 12:11:52 +0300
From:      Rozhuk Ivan <rozhuk.im@gmail.com>
To:        Yamagi Burmeister <lists@yamagi.org>
Cc:        dariusmihaim@gmail.com, freebsd-hackers@freebsd.org, freebsd-current@freebsd.org
Subject:   Re: Boot hang on ryzen based notebook
Message-ID:  <20190403121152.7f7f915c@rimwks>
In-Reply-To: <20190403090522.548ffbdaad84c2c001a6926d@yamagi.org>
References:  <20190330164628.138a2bad@rimwks> <CAPj=67tECgp6bgB4U5xqa0Nnngz6tZjEH4pw4PPcFay7DBJopg@mail.gmail.com> <20190330204138.18fe8443@rimwks> <CAPj=67uK5hi21FHt=Yas0QofW0CbLBotYus=xQ6t0YGNWnmKrA@mail.gmail.com> <20190330211736.05b39193@rimwks> <20190403090522.548ffbdaad84c2c001a6926d@yamagi.org>

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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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