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Subject: Re: recent changed in vmm lead to panic: AMD, ivhd_setup_intr
To: Oleg Ginzburg <olevole@olevole.ru>, freebsd-virtualization@freebsd.org
References: <CAMsb+mZtH3b_hhe=fmGY-1Y4Wa8Na+LzQy8sOhvhs1Dv9S-mzQ@mail.gmail.com>
From: Ka Ho Ng <khng@FreeBSD.org>
Message-ID: <7559a304-3188-4df9-24cd-09f0bdb8c120@FreeBSD.org>
Date: Thu, 1 Apr 2021 03:00:43 +0800
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On 4/1/21 2:59 am, Oleg Ginzburg wrote:
> Hi,
> 
> Over the past two weeks some changes appeared, which lead to a panic 
> while trying to load the VMM kernel module.
> 
> Kernel and revision with which everything was fine:
> FreeBSD 14.0-CURRENT #0 main-n245511-a771bf748f9: Thu Mar 18 06:35:21 
> UTC 2021
> 
> Latest builds get panic: https://paste.pics/C2FOS <https://paste.pics/C2FOS>
> 
> CPU: AMD Ryzen 7 PRO 3700U w/ Radeon Vega Mobile Gfx (2295.74-MHz 
> K8-class CPU)
> ( Thinkpad t495s )
> 
> I see possible commits that could affect this behavior (all previous 
> months before that moment, the VMM module works fine on the current 
> equipment):
> 
> https://cgit.freebsd.org/src/commit/?id=ede14736fd6d74db0374f4a233491ad5dc0e9b1d 
> <https://cgit.freebsd.org/src/commit/?id=ede14736fd6d74db0374f4a233491ad5dc0e9b1d>
> https://cgit.freebsd.org/src/commit/?id=74ada297e8978b8efda3dffdd1bb24aee7c5faa4 
> <https://cgit.freebsd.org/src/commit/?id=74ada297e8978b8efda3dffdd1bb24aee7c5faa4>
> 
> If you need to provide additional information that will help diagnose 
> the problem - please inform.

I will look into it, thanks.

Ka Ho